1077 Subpart A—General

Coast Guard, DHS Pt. 183

§ 181.701 Applicability. 183.5 Incorporation by reference. This subpart applies to all personal Subpart B—Display of Capacity flotation devices that are sold or of- Information fered for sale for use on recreational boats. 183.21 Applicability. 183.23 Capacity marking required. § 181.702 Information pamphlet: re- 183.25 Display of markings. quirement to furnish. 183.27 Construction of markings. (a) Each manufacturer of a personal Subpart C—Safe Loading flotation device (PFD) must furnish with each PFD that is sold or offered 183.31 Applicability. for sale for use on a recreational boat, 183.33 Maximum weight capacity: Inboard and inboard-outdrive boats. an information pamphlet meeting the 183.35 Maximum weight capacity: Outboard requirements of § 181.703, § 181.704, or boats. § 181.705 of this subpart, as appropriate. 183.37 Maximum weight capacity: Boats (b) No person may sell or offer for rated for manual propulsion and boats sale for use on a recreational boat, a rated for outboard motors of 2 horse- PFD unless an information pamphlet power or less. required by this section is attached in 183.39 Persons capacity: Inboard and in- such a way that it can be read prior to board-outdrive boats. purchase. 183.41 Persons capacity: Outboard boats. 183.43 Persons capacity: Boats rated for [CGD 93–055, 61 FR 13927, Mar. 28, 1996, as manual propulsion and boats rated for amended by USCG–2013–0263, 79 FR 56499, outboard motors of 2 horsepower or less. Sept. 22, 2014] Subpart D—Safe Powering § 181.703 Information pamphlet: Con- tents. 183.51 Applicability. 183.53 Horsepower capacity. Unless otherwise specified in this subpart, each information pamphlet Subpart E—Flotation and Safe Loading Re- must contain the information specified quirements—Outboard Motor and Re- in sections 33, 34 and 35 of UL 1123. lated Equipment Test Weights [CGD 93–055, 61 FR 13927, Mar. 28, 1996] 183.75 Applicability.

§ 181.704 Contents of information pam- Subpart F—Flotation Requirements for In- phlet: Recreational hybrid PFD. board Boats, Inboard/Outdrive Boats, Each information pamphlet for a rec- and Airboats reational hybrid PFD approved under 183.101 Applicability. 46 CFR 160.077 must contain the infor- 183.105 Quantity of flotation required. mation specified in 46 CFR 160.077–27. 183.110 Definitions. [CGD 93–055, 61 FR 13927, Mar. 28, 1996] 183.112 Flotation material and air chambers. § 181.705 Contents of information pam- 183.114 Test of flotation materials. phlet: Recreational inflatable PFD. Subpart G—Flotation Requirements for Out- Each information pamphlet for a rec- board Boats Rated for Engines of More reational inflatable PFD approved Than 2 Horsepower under 46 CFR 160.076 must contain the information required by 46 CFR 160.076– GENERAL 35. 183.201 Applicability. 183.202 Flotation and certification require- [CGD 93–055, 61 FR 13927, Mar. 28, 1996] ments. 183.205 Passenger carrying area. PART 183—BOATS AND 183.210 Reference areas. ASSOCIATED EQUIPMENT 183.215 Reference depth. 183.220 Preconditioning for tests. 183.222 Flotation material and air cham- Subpart A—General bers. Sec. TESTS 183.1 Purpose and applicability. 183.3 Definitions. 183.225 Flotation test for persons capacity.

1075

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01085 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR Pt. 183 33 CFR Ch. I (7–1–20 Edition)

183.230 Stability test. 183.528 Fuel stop valves. 183.235 Level flotation test without weights 183.530 Spud, pipe, and hose fitting configu- for persons capacity. ration. 183.532 Clips, straps, and hose clamps. Subpart H—Flotation Requirements for Out- 183.534 Fuel filters and strainers. board Boats Rated for Engines of 2 183.536 Seals and gaskets in fuel filters and Horsepower or Less strainers. 183.538 Metallic fuel line materials. GENERAL 183.540 Hoses: Standards and markings. 183.542 Fuel systems. 183.301 Applicability. 183.302 Flotation requirements. MANUFACTURER REQUIREMENTS 183.305 Passenger carrying area. 183.310 Reference areas. 183.550 Fuel tanks: Installation. 183.315 Reference depth. 183.552 Plastic encased fuel tanks: Installa- 183.320 Preconditioning for tests. tion. 183.322 Flotation materials. 183.554 Fittings, joints, and connections. 183.556 Plug and fittings. TESTS 183.558 Hoses and connections. 183.325 Flotation test for persons capacity. 183.560 Hose clamps: Installation. 183.330 Stability test. 183.562 Metallic fuel lines. 183.335 Level flotation test without weights 183.564 Fuel tank fill system. for persons capacity. 183.566 Fuel pumps: Placement. 183.568 Anti-siphon protection. FIGURES TO SUBPART H OF PART 183 183.570 Fuel filters and strainers: Installa- tion. Subpart I—Electrical Systems 183.572 Grounding. GENERAL TESTS 183.401 Purpose, applicability, and effective 183.580 Static pressure test for fuel tanks. dates. 183.584 Shock test. 183.402 Definitions. 183.586 Pressure impulse test. 183.405 General. 183.588 Slosh test. MANUFACTURER REQUIREMENTS 183.590 Fire test. 183.410 Ignition protection. Subpart K—Ventilation 183.415 Grounding. 183.420 Batteries. 183.601 Applicability. 183.425 Conductors: General. 183.605 Definitions. 183.430 Conductors in circuits of less than 50 183.607 Incorporation by reference. volts. 183.610 Powered ventilation system. 183.435 Conductors in circuits of 50 volts or 183.620 Natural ventilation system. more. 183.630 Standards for natural ventilation. 183.440 Secondary circuits of ignition systems. Subpart L—Start-in-Gear Protection 183.445 Conductors: Protection. 183.455 Overcurrent protection: General. 183.701 Applicability. 183.460 Overcurrent protection: Special ap- 183.705 Definitions. plications. 183.710 Start-in-gear protection required. 183.715 Exception. Subpart J—Fuel Systems Subpart M—Navigation Lights GENERAL 183.801 Applicability. 183.501 Applicability. 183.803 Definitions. 183.505 Definitions. 183.810 Navigation light certification re- 183.507 General. quirements. EQUIPMENT STANDARDS Subpart N [Reserved] 183.510 Fuel tanks. 183.512 Fuel tanks: Prohibited materials. AUTHORITY: 46 U.S.C. 4302; Pub. L. 103–206, 183.514 Fuel tanks: Labels. 107 Stat. 2439; and Department of Homeland 183.516 Cellular plastic used to encase fuel Security Delegation No. 0170.1, para. II, tanks. (92)(b). Subpart E is also authorized by Pub. 183.518 Fuel tank openings. L. 114–120, 130 Stat. 27 183.520 Fuel tank vent systems. 183.524 Fuel pumps. SOURCE: CGD 72–61R, 37 FR 15782, Aug. 4, 183.526 Carburetors. 1972, unless otherwise noted.

1076

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01086 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR Coast Guard, DHS § 183.3

Subpart A—General This distance is measured as a projection on the centerline plane of the § 183.1 Purpose and applicability. boat. See Figure 183.3. This part prescribes standards and Permanent appurtenances means regulations for boats and associated equipment that is mounted or fastened, equipment to which 46 U.S.C. Chapter so that it is not removable without the 43 applies and to which certification re- use of tools. Seats, inboard engines, quirements in Part 181 of this sub- windshields, helm stations, or hardtops chapter apply. are permanent appurtenances. Out- board motors, controls, batteries, and [CGD 85–098, 52 FR 19728, May 27, 1987] portable fuel tanks are not permanent appurtenances. § 183.3 Definitions. Remote steering means any mechan- Beam means the transverse distance ical assist device which is rigidly at- between the outer sides of the boat ex- tached to the boat and used in steering cluding handles, and other similar fit- the vessel, including but not limited to tings, attachments, and extensions. mechanical, hydraulic, or electrical Boat means any vessel— control systems. (1) Manufactured or used primarily Sailboat means a boat designed or infor noncommercial use; tended to use sails as the primary (2) Leased, rented, or chartered to an- means of propulsion. other for the latter’s noncommercial Sheer means the topmost line in a use; or boat’s side. The sheer intersects the (3) Operated as an uninspected pas- vertical centerline plane of the boat at senger vessel subject to the require- the forward end and intersects the ments of 46 CFR chapter I, subchapter transom (stern) at the aft end. For the C. purposes of this definition, the topmost Full transom means a transom with a line in a boat’s side is the line defined maximum width which exceeds one- by a series of points of contact with half the maximum beam of the boat. the boat structure, by straight lines at Length means the straight line hori- 45 degree angles to the horizontal and zontal measurement of the overall contained in a vertical plane normal to length from the foremost part of the the outside edge of the boat as seen boat to the aftermost part of the boat, from above and which are brought into measured from end to end over the contact with the outside of the hori- deck excluding sheer, and measured zontal boat. A boat is horizontal when parallel to the centerline. Bow sprits, it is transversely level and when the bumpkins, rudders, outboard motor lowest points at 40 percent and 75 per- brackets, handles, and other similar cent of the boat’s length behind the fittings, attachments, and extensions most forward point of the boat are are not included in the measurement. level. Monohull boat means a boat on which Transom means the surface at the the line of intersection of the water stern of a boat projecting or facing aft. surface and the boat at any operating The upper boundary of the transom is draft forms a single closed curve. For the line defined by a series of points of example, a catamaran, trimaran, or a contact, with the boat structure, by pontoon boat is not a monohull boat. straight lines at 45 degree angles to the Motorwell means any arrangement of horizontal and contained in a vertical bulkheads or structures that prevents longitudinal plane and which are water from entering the passenger car- brought into contact with the stern of rying area of the boat through any cut- the horizontal boat. A boat is hori- out area in the transom for mounting zontal when it is transversely level and an outboard motor. when the lowest points at 40 percent Motorwell height means the vertical and 75 percent of the boat’s length be- distance from the lowest point of water hind the most forward point of the boat ingress along the top of the motorwell are level. to a line representing a longitudinal Transom height means the vertical extension of the centerline of the distance from the lowest point of water boat’s bottom surface, excluding keels. ingress along the top of the transom to

1077

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01087 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR § 183.5 33 CFR Ch. I (7–1–20 Edition)

a line representing a longitudinal ex- Vessel includes every description of tension of the centerline of the boat’s watercraft, other than a seaplane on bottom surface, excluding keels. This the water, used or capable of being distance is measured as a projection on used as a means of transportation on the centerline plane of the boat. See the water. Figure 183.3.

FIGURE 183.3—TRANSOM AND MOTORWELL HEIGHT

[CGD 73–250, 40 FR 43856, Sept. 23, 1975, as amended by CGD 75–176, 42 FR 2681, Jan. 13, 1977; CGD 85–002, 51 FR 37574, Oct. 23, 1986; CGD 96–026, 61 FR 33669, June 28, 1996; 61 FR 36629, July 12, 1996; USCG–1999–5040, 67 FR 34760, May 15, 2002]

§ 183.5 Incorporation by reference. For information on the availability of this material at NARA, call 202–741– (a) Certain materials are incor- 6030, or go to: http://www.archives.gov/ porated by reference into this part with the approval of the Director of the federallregister/ Federal Register in accordance with 5 codeloflfederallregulations/ U.S.C. 552(a). To enforce any edition ibrllocations.html. All approved mate- other than the one listed in paragraph rial is available from the sources listed (b) of this section, notice of change in paragraph (b) of this section. must be published in the FEDERAL REG- (b) The materials approved for incor- ISTER and the material made available poration by reference in this part, and to the public. All approved material is the sections affected are: available for inspection at the Coast Air Movement and Control Asso- Guard Headquarters. Contact Com- ciation, 30 W. University mandant (CG–BSX–23), Attn: Rec- Drive, Arlington Heights, IL reational Boating Product Assurance 60004: Branch, U.S. Coast Guard Stop 7501, AMCA 210–74: Labora- § 183.610 2703 Martin Luther King Jr. Avenue tory Methods of Testing Fans for Rat- SE., Washington, DC 20593–7501. It is ings—1974. also available at the National Archives and Records Administration (NARA).

1078

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01088 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR EC18OC91.018 Coast Guard, DHS § 183.25

American Boat and Yacht Coun- SAE J1127 Battery § 183.430 cil, Inc., 613 Third Street Cable—1980. Suite 10, Annapolis, Mary- SAE J1128 Low Tension § 183.430 land 21403: Primary Cable—1975. ABYC A–16 Electric § 183.810 SAE J1527DEC85 Ma- § 183.540 Navigation Lights- rine Fuel Hoses—1985. 1997. Underwriters Laboratories, Inc. American Society for Testing and (UL), 12 Laboratory Drive, Materials, 100 Barr Harbor Research Triangle Park, NC Drive, West Conshohocken, 27709–3995: PA 19428–2959: UL 1114 Marine (USCG § 183.540 ASTM D 471–96, Stand- §§ 183.114; Type A) Flexible ard Test Method for 183.516; Fuel Line Hose—1987. Rubber Property—Ef- 183.607; UL 1128 Marine Blow- § 183.610 fect of Liquids. 183.620 ers—1977. ASTM D 1621–94, § 183.516 UL 1426 Cables for § 183.435 Standard Test Meth- Boats—1987. od for Compressive Properties of Rigid [CGD 87–009, 53 FR 36971, Sept. 23, 1988, as Cellular Plastics. amended by CGD 96–026, 61 FR 33670, June 28, ASTM D 1622–93, § 183.516 1996; USCG–1999–5151, 64 FR 67176, Dec. 1, 1999; Standard Test Meth- USCG–2000–7223, 65 FR 40059, June 29, 2000; od for Apparent Den- USCG–1999–6580, 66 FR 55091, Nov. 1, 2001; 69 sity of Rigid Cellular FR 18803, Apr. 9, 2004; USCG–2004–18057, 69 FR Plastics. 34926, June 23, 2004; USCG–2008–0179, 73 FR ASTM D 2842–97, § 183.114 35024, June 19, 2008; USCG–2010–0351, 75 FR Standard Test Meth- 36288, June 25, 2010; USCG–2014–0410, 79 FR od for Water Absorp- 38449, July 7, 2014] tion of Rigid Cellular Plastics. Institute of Electrical and Elec- Subpart B—Display of Capacity tronics, Engineers, Inc., 445 Information Hoes Lane, Piscataway, NJ 08854: § 183.21 Applicability. IEEE 45 IEEE Rec- § 183.435 ommended Practice This subpart applies to monohull for Electrical Instal- boats less than 20 feet in length, except lations on Ship- sailboats, canoes, kayaks, and inflat- board—1983. Cable able boats. Construction. National Fire Protection Asso- § 183.23 Capacity marking required. ciation, 1 Batterymarch Park, Quincy, MA 02269: Each boat must be marked in the NFPA No. 70 National § 183.435 manner prescribed in §§ 183.25 and 183.27 Electrical Code—1987. with the maximum persons capacity in Articles 310 & 400. whole numbers of persons and in Military Specifications and pounds, the maximum weight capacity Standards, Standardization Documents Order Desk, in pounds, determined under §§ 183.33 Building 4D, 700 Robbins Av- through 183.43, and the maximum enue, Philadelphia, PA 19111– horsepower capacity determined under 5094; https://assist.daps.dla.mil/ § 183.53 or the statement ‘‘This Boat quicksearch/ Not Rated for Propulsion by a Motor’’. MILSPEC-P-21929B § 183.516 Plastic Material, Cel- [CGD 78–034, 45 FR 2029, Jan. 10, 1980, as lular Polyurethane, amended by USCG–1999–5832, 64 FR 34716, Foam-In-Place, June 29, 1999] Rigid—1970. Society of Automotive Engineers, § 183.25 Display of markings. Inc., 400 Commonwealth Drive, Warrendale, PA 15096: (a) Each marking required by § 183.23 SAE J378 Marine En- § 183.430 must be permanently displayed in a gine Wiring—1984. legible manner where it is clearly visi- SAE J557 High Tension § 183.440 ble to the operator when getting the Ignition Cable—1968. boat underway. 1079

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01089 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR § 183.25 33 CFR Ch. I (7–1–20 Edition)

(b) The information required by XXX Pounds, persons, gear § 183.23 must be displayed in the fol- (3) For boats rated for motors of 2 lowing manner: horsepower or less: (1) For outboard boats: U.S. Coast Guard Maximum Capacities U.S. Coast Guard Maximum Capacities XX Persons or XXX Pounds XX Persons or XXX Pounds XXX Pounds, persons, motor, gear XXX Pounds, persons, motor, gear XXX Horsepower, motor XXX Horsepower, motor or (4) For boats rated for manual pro- U.S. Coast Guard Maximum Capacities pulsion:

XX Persons or XXX Pounds U.S. Coast Guard Maximum Capacities XXX Pounds, persons, motor, gear XXX Horsepower, motor with remote steer- XX Persons or XXX Pounds ing XXX Pounds, persons, gear XXX Horsepower, motor without remote steering This Boat Not Rated for Propulsion by Motor (2) For inboard boats and inboard- (c) The capacity information displays outboard boats: required in paragraph (b) must meet the following as illustrated in Figure U.S. Coast Guard Maximum Capacities 183.25: XX Persons or XXX Pounds

(1) The capacity information required (i) The height must not be smaller in § 183.23 must be displayed within a than one-half inch; yellow area that— (ii) The width of the numbers must (i) Is at least 4 inches wide; and be three-fifths of the height except for (ii) Is high enough that each line of the number ‘‘4’’, which shall be one print is separated by at least 1⁄8 inch stroke width wider, and the number from each other and from the borders ‘‘1’’, which shall be one stroke in of the yellow area; width; (2) The persons capacity in whole (iii) The stroke width shall be one- numbers must be black print with the sixth of the height; and following dimensions:

1080

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01090 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR EC18OC91.019 Coast Guard, DHS § 183.33

(iv) The minimum space between the § 183.27 Construction of markings. numbers shall be one stroke width. (3) The words in the line ‘‘XX Persons Each marking required by § 183.23 or XXX Pounds’’ must be at least one- must be— quarter inch in height but not larger (a) Capable of withstanding the com- than one-half the height of the persons bined effects of exposure to water, oil, capacity number and of a color con- salt spray, direct sunlight, heat, cold, trasting with yellow. The number of and wear expected in normal operation pounds in this line must be at least of the boat, without loss of legibility; one-eighth inch in height but no larger and than one-half the height of the persons (b) Resistant to efforts to remove or capacity number and of a color con- alter the information without leaving trasting with yellow. some obvious sign of such efforts. (4) All remaining words and numbers [CGD 78–034, 45 FR 2030, Jan. 10, 1980] required to be within the yellow area required in paragraph (c)(1) must be at least one-eighth inch in height, but no Subpart C—Safe Loading larger than one-half the height of the persons capacity number. § 183.31 Applicability. (5) All other words and numbers on This subpart applies to monohull the displays must be located outside boats less than 20 feet in length except the yellow area on a background color sailboats, canoes, kayaks, and inflat- which contrasts with yellow. able boats. (6) The words ‘‘Maximum Capacities’’ must be at least one-quarter inch in § 183.33 Maximum weight capacity: In- height and of color contrasting with its board and inboard-outdrive boats. background. (a) The maximum weight capacity (7) The words ‘‘U.S. Coast Guard’’ (W) marked on a boat that has one or must be at least one-eighth inch in more inboard or inboard-outdrive units height and of color contrasting with its for propulsion must not exceed the background. greater value of W obtained from ei- [CGD 78–034, 45 FR 2029, Jan. 10, 1980] ther of the following formulas:

(maximum displacement) boat weight 4 (machinery weight) W = −− 5 5 5 or (maximum displacement − boat weight) W = 7

(b) For the purposes of paragraph (a) som (stern) are equidistant above the of this section: water surface or are equidistant below (1) ‘‘Maximum displacement’’ is the the water surface. weight of the volume of water dis- (ii) The most forward point of the placed by the boat at its maximum boat is level with or above the lowest level immersion in calm water without point of water ingress. water coming aboard. For the purpose (2) ‘‘Boat weight’’ is the combination of this paragraph, a boat is level when of: it is transversely level and when either (i) Hull weight; of the two following conditions are met: (ii) Deck and superstructure weight; (i) The forward point where the sheer (iii) Weight of permanent appur- intersects the vertical centerline plane tenances; and and the aft point where the sheer inter- (iv) Weight of full permanent fuel sects the upper boundary of the tran- tanks.

1081

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01091 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR EC18OC91.020 § 183.35 33 CFR Ch. I (7–1–20 Edition)

(3) ‘‘Machinery weight’’ is the com- § 183.37 Maximum weight capacity: bined weight of installed engines or Boats rated for manual propulsion motors, control equipment, drive units, and boats rated for outboard mo- and batteries. tors of 2 horsepower or less. (a) The maximum weight capacity [CGD 72–61R, 37 FR 15782, Aug. 4, 1972] marked on a boat that is rated for EDITORIAL NOTE: For FEDERAL REGISTER ci- manual propulsion or for motors of 2 tations affecting § 183.33, see the List of CFR horsepower or less must not exceed 3⁄10 Sections Affected, which appears in the of the difference between the boat’s Finding Aids section of the printed volume maximum displacement and the boat’s and at www.govinfo.gov. weight in pounds. (b) For the purposes of paragraph (a) § 183.35 Maximum weight capacity: of this section: Outboard boats. (1) ‘‘Maximum displacement’’ is the (a) The maximum weight capacity weight of the volume of water dis- marked on a boat that is designed or placed by the boat at its maximum intended to use one or more outboard level immersion in calm water without motors for propulsion must be a num- water coming aboard. For the purpose ber that does not exceed one-fifth of of this paragraph, a boat is level when the difference between its maximum it is transversely level and when either displacement and boat weight. of the two following conditions are (b) For the purposes of paragraph (a) met: of this section: (i) The forward point where the sheer (1) ‘‘Maximum displacement’’ is the intersects the vertical centerline plane weight of the volume of water dis- and the aft point where the sheer inter- placed by the boat at its maximum sects the upper boundary of the tran- level immersion in calm water without som (stern) are equidistant above the water coming aboard except for water water surface or are equidistant below coming through one opening in the the water surface. motor well with its greatest dimension (ii) The most forward point of the not over 3 inches for outboard motor boat is level with or above the lowest controls or fuel lines. For the purpose point of water ingress. of this paragraph, a boat is level when (2) ‘‘Boat weight’’ is the combination it is transversely level and when either of: of the two following conditions are (i) Hull weight; met: (ii) Deck and superstructure weight; (i) The forward point where the sheer and (iii) Weight of permanent appur- intersects the vertical centerline plane tenances. and the aft point where the sheer intersects the upper boundary of the tran- [CGD 72–61R, 37 FR 15782, Aug. 4, 1972] som (stern) are equidistant above the EDITORIAL NOTE: For FEDERAL REGISTER ci- water surface or are equidistant below tations affecting § 183.37, see the List of CFR the water surface. Sections Affected, which appears in the (ii) The most forward point of the Finding Aids section of the printed volume boat is level with or above the lowest and at www.govinfo.gov. point of water ingress. § 183.39 Persons capacity: Inboard and (2) ‘‘Boat weight’’ is the combination inboard-outdrive boats. of: (a) The persons capacity in pounds (i) Hull weight; marked on a boat that is designed to (ii) Deck and superstructure weight; use one or more inboard engines or in- (iii) Weight of permanent appur- board-outdrive units for propulsion tenances; and must not exceed the lesser of: (iv) Weight of full permanent fuel (1) The maximum weight capacity de- tanks. termined under § 183.33 for the boat; or [CGD 72–61, 37 FR 15782, Aug. 4, 1972, as (2) For boats with a maximum per- amended by CGD 73–250, 40 FR 43857, Sept. 23, sons capacity less than 550 pounds, the 1975; CGD 75–176, 42 FR 2681, Jan. 13, 1977; maximum persons capacity determined USCG–1999–5832, 64 FR 34716, June 29, 1999] in the following manner:

1082

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01092 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR Coast Guard, DHS § 183.43

(i) Float the boat in calm water with weight, battery weight, and full port- all its permanent appurtenances, in- able fuel tank weight, if any, required cluding installed engines, full fuel sys- by § 183.75 for the maximum horsepower tem and tanks, control equipment, capacity marked on the boat. Perma- drive units and batteries. nently installed fuel tanks shall be full (ii) Gradually add weights along one of fuel. outboard extremity of each passenger (iii) Gradually add weights along one carrying area, at the height of the seat outboard extremity of each passenger nearest the center of that area, but no carrying area, at the height of the seat higher than the height of the gunwale nearest the center of that area, but no and distributed equally forward and aft higher than the height of the gunwale, of that center in a plane parallel to the and distributed equally forward and aft floorboards, until the boat assumes the of that center in a plane parallel to the maximum list or trim or both, without floorboards until the boat assumes the water coming aboard. maximum list or trim, or both without (iii) Compute the persons capacity in water coming aboard. pounds in the following formula: Per- (iv) Compute the persons capacity in sons capacity = A/0.6 where A is the pounds using the following formula: total of the weights added in paragraph Persons capacity = A/0.6 where A is the (a)(2)(ii) of this section. total of the weights added in paragraph (b) The maximum persons capacity in (a)(2)(iii) of this section. whole numbers of persons marked on a (b) The maximum persons capacity in boat that is designed or intended to use whole numbers of persons marked on a one or more inboard engines or inboard-outboard units must not exceed boat designed or intended to use one or the value obtained by adding 32 pounds more outboard motors for propulsion to the value determined in paragraph must not exceed the value obtained by (a)(2)(iii), dividing the sum by 141 and adding 32 pounds to the lesser of the rounding off the result to the nearest values determined in paragraph (a)(1) whole number. If the fraction is less or (a)(2)(iv), dividing the sum by 141, than one-half, round down to the next and rounding off the result to the near- whole integer and if the fraction is est whole number. If the fraction is less equal to or greater than one-half, than one-half, round down to the next round up to the next higher whole inte- lower whole integer and if the fraction ger. is equal to or greater than one-half, round up to the next higher whole inte- [CGD 78–034, 45 FR 2030, Jan. 10, 1980, as ger. amended by CGD 83–012, 49 FR 39328, Oct. 5, 1984; 50 FR 18636, May 2, 1985] [CGD 78–034, 45 FR 2030, Jan. 10, 1980, as amended by CGD 83–012, 49 FR 39328, Oct. 5, § 183.41 Persons capacity: Outboard 1984; 50 FR 18636, May 2, 1985; USCG–2016–1012, boats. 82 FR 16521, Apr. 5, 2017] (a) The persons capacity in pounds marked on a boat that is designed to § 183.43 Persons capacity: Boats rated for manual propulsion and boats use one or more outboard motors for rated for outboard motors of 2 propulsion must not exceed the lesser horsepower or less. of: (1) The maximum weight capacity de- (a) The persons capacity in pounds termined under § 183.35 for the boat marked on a boat that is rated for minus the motor and control weight, manual propulsion or for motors of 2 battery weight (dry), and full portable horsepower or less must not exceed: fuel tank weight required by § 183.75; or (1) For boats rated for manual pro- (2) For boats with a maximum per- pulsion, 90 percent of the maximum sons capacity less than 550 pounds, the weight capacity in pounds; and maximum persons capacity determined (2) For boats rated for motors of 2 in the following manner: horsepower or less, 90 percent of the (i) Float the boat with all its perma- maximum weight capacity in pounds, nent appurtenances. less 25 pounds. (ii) Add, in normal operating posi- (b) The maximum persons capacity, tions, the dry motor and control in whole numbers of persons marked on

1083

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01093 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR § 183.51 33 CFR Ch. I (7–1–20 Edition)

a boat that is rated for manual propul- tended to use one or more outboard sion must not exceed the value ob- motors for propulsion. tained by adding 32 pounds to the value determined in paragraph (a)(1), divid- § 183.53 Horsepower capacity. ing the sum by 141, and rounding off The maximum horsepower capacity the result to the nearest whole num- marked on a boat must not exceed the ber. If the fraction is less than one- horsepower capacity determined by the half, round down to the next lower in- computation method discussed in para- teger and if the fraction is equal to or graph (a) of this section, or for certain greater than one-half, round up to the qualifying boats, the performance test next higher whole integer. method discussed in paragraph (b) of (c) The maximum persons capacity in this section. whole numbers of persons marked on a (a) The maximum horsepower capac- boat rated for motors of 2 horsepower ity must be computed as follows: or less must not exceed the value ob- (1) Compute a factor by multiplying tained by adding 32 pounds to the value the boat length in feet by the max- determined in paragraph (a)(2), divid- imum transom width in feet excluding ing the sum by 141, and rounding off handles and other similar fittings, at- the result to the nearest whole num- tachments, and extensions. If the boat ber. If the fraction is less than one- does not have a full transom, the tran- half, round down to the next lower som width is the broadest beam in the whole integer and if the fraction is aftermost quarter length of the boat. equal to or greater than one-half, round up to the next higher whole inte- (2) Locate horsepower capacity cor- ger. responding to the factor in Table 183.53. (3) For a boat with a factor over 52.5, [CGD 78–034, 45 FR 2031, Jan. 10, 1980] if the horsepower capacity calculated in Table 183.53 is not an exact multiple Subpart D—Safe Powering of 5, it may be raised to the next exact multiple of 5. § 183.51 Applicability. (4) For flat bottom hard chine boats This subpart applies to monohull with a factor of 52 or less, the horse- boats less than 20 feet in length, except power capacity must be reduced by one sailboats, canoes, kayaks, and inflat- horsepower capacity increment in able boats, that are designed or in- Table 183.53.

TABLE 183.53—OUTBOARD BOAT HORSEPOWER CAPACITY [Compute: Factor = Boat Length × Transom Width] If factor (nearest integer) is ...... 0–35 36–39 40–42 43–45 46–52

Horsepower Capacity is ...... 3 5 7.5 10 15

[Note: For flat bottom hard chine boats, with factor of 52 or less, reduce one capacity limit (e.g. 5 to 3)]

No remote steering, or less than 20″ transom height Remote steering and at If factor is over 52.5 and the boat has least 20″ transom height For flat bottom hard chine boats For other boats

Horsepower capacity is (raise to near- (2 × Factor) ¥90 ...... (0.5 × Factor)¥15 ...... (0.8 × Factor)¥25 est multiple of 5).

(b) For boats qualifying under this (A) Minimum 19 inch transom height; paragraph, the performance test meth- or, od described in this paragraph may be (B) For boats with at least a 19 inch used to determine the horsepower ca- motorwell height, a minimum 15 inch pacity. transom height; (1) Qualifying criteria. (i) Thirteen (iv) Maximum persons capacity not feet or less in length; over two persons; (ii) Remote wheel steering; (iii) Transom height

1084

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01094 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR Coast Guard, DHS § 183.53

(2) Boat preparation. (i) The boat must fully if it is capable of completing a 90° be rigged with equipment rec- turn without the driver losing control ommended or provided by the boat and of the boat or reducing the throttle motor manufacturer and tested with setting. Gradually increase the boat’s the highest horsepower production turn entry speed incrementally until powerplant for which the boat is to be the boat does not complete the Quick rated, not to exceed 40 horsepower. Turn Test successfully or successfully (ii) Standard equipment must be in- completes it at maximum throttle. stalled in accordance with manufactur- NOTE: It is recognized that operator skill ers’ instructions. and familiarity with a particular boat and (iii) The lowest ratio (quickest) motor combination will affect the test re- steering system offered on the boat sults. It is permissible to make a number of model being tested must be installed. practice runs through the quick turn test at (iv) The outboard motor must be any throttle setting. fitted with the manufacturer’s rec- (5) Test course method. Set throttle for ommended propeller providing max- 30 miles per hour boat speed and run imum speed. the test course set up in accordance (v) Standard permanently installed with Figure 183.53, passing outside the fuel tanks must be no more than one- designated avoidance marker for 35 to half full. Boats without permanent 37.5 miles per hour without contacting tanks must be tested with one full any of the course markers. If the boat portable tank. successfully completes this run of the (vi) Portable tanks must be in their test course, increase the throttle set- designated location or placed as far aft ting to 35 to 37.5 miles per hour boat as possible. speed and run the course passing out- (vii) The outboard motor must be side the designated avoidance marker placed in the lowest vertical position for that speed without contacting any on the transom or, if mounting instruc- of the course markers. If the boat suc- tions are provided with the boat, at the cessfully completes this run of the test height recommended. course and the motor was not at full (viii) Boat bottom, motor and pro- throttle, increase the throttle setting peller must be in new or almost new to 37.5 to 42.5 miles per hour boat speed condition. and run the course passing outside the NOTE: The use of the following special designated avoidance marker for that equipment should be considered because of speed without contacting any of the the potential for exceeding the capabilities course markers. If the boat success- of the boat while performing the test: fully completes this run of the test Racing Type Personal Flotation Device course and the motor was not at full Helmet. throttle, increase the throttle setting (3) Test conditions. Testing must be to 42.5 miles per hour or more and run conducted on smooth, calm water with the course passing outside the des- the wind speed below 10 knots. The test ignated avoidance marker for that must be conducted with no load other speed without contacting any of the than a driver who must weigh no more course markers. If the boat success- than 200 pounds. The motor trim angle fully completes this run of the test must be adjusted to provide maximum course and the motor was not at full full throttle speed short of excessive throttle, continue to increase the porpoising or propeller ventilation or throttle setting and run the test course ‘‘cavitation’’, so that there is no loss of passing outside the designated avoid- directional control. ance marker for 42.5 miles per hour or (4) Quick turn test procedure. Set more until the boat fails to complete throttle at a low maneuvering speed the test successfully or the boat com- and steer the boat straight ahead. Turn pletes the test course maneuvers suc- the steering wheel 180° in the direction cessfully at full throttle. The boat suc- of least resistance in 1⁄2 second or less cessfully completes the test course if and hold it at that position without the driver is able to maneuver it be- changing the throttle or trim settings tween the designated avoidance mark- during or after the wheel change. The ers without striking the markers and boat completes the maneuver success- without losing control of the boat or

1085

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01095 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR § 183.75 33 CFR Ch. I (7–1–20 Edition)

reducing the throttle setting. There power with which the boat was able to must be no change in position of any successfully complete the Quick Turn equipment on board and there must be Test Procedure in § 183.53(b)(4) at full no change of position of personnel in throttle or the maximum horsepower order to influence the test results. determined under the calculations in There must be no instability evidenced § 183.53(a) of this section. by oscillating motion in the roll or yaw (ii) For boats capable of 35 miles per axes exhibited while negotiating the hour or more, the maximum horse- course. power capacity must be the maximum horsepower with which the boat was NOTE: It is recognized that operator skill able to successfully complete both the and familiarity with a particular boat and Quick Turn Test Procedure in motor combination will affect the test re- § 183.53(b)(4) and the Test Course Meth- sults. It is therefore considered permissible od in § 183.53(b)(5) at full throttle or the to make a number of practice runs through the test course at any throttle setting. calculations in § 183.53(a) of this section. (6) Maximum horsepower capacity. (i) (iii) The maximum horsepower capac- For boats capable of less than 35 miles ity determined in accordance with per hour, the maximum horsepower ca- § 183.53(b) must not exceed 40 horse- pacity must be the maximum horsepower.

FIGURE 183.53—BOAT HORSEPOWER CAPACITY TEST COURSE—35 MPH OR MORE

[CGD 85–002, 51 FR 37574, Oct. 23, 1986]

Subpart E—Flotation and Safe § 183.75 Applicability. Loading Requirements–Out- Manufacturers of vessels to which board Motor and Related this subpart applies must use test Equipment Test Weights weights that are not less than the recommended weights set forth in Table 183.75. Table 183.75 details the weight SOURCE: USCG–2016–1012, 82 FR 16521, Apr. (in pounds) of gasoline outboard en- 5, 2017, unless otherwise noted. gines and related equipment for various rated power (horsepower) ranges.

1086

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01096 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR EC18OC91.021 Coast Guard, DHS § 183.105

TABLE 183.75—WEIGHTS (IN POUNDS) OF GASOLINE OUTBOARD ENGINES AND RELATED EQUIPMENT FOR VARIOUS RATED POWER (HORSEPOWER) RANGES

Single engine installations Column number 1 7 8 9 Engine 2 3 4 5 6 power Total weight range Battery Full Sum of (Horse- Dry Running Swamped Controls & Battery weight portable columns power) weight 12 weight 3 weight 4 rigging 5 weight, dry submerged fuel tank 6 3,5,6,8)

0.1–2.0 .. 30 32 27 0 0 0 0 32 2.1–3.9 .. 42 44 37 0 0 0 0 44 4.0–6.9 .. 66 69 59 0 0 0 25 94 7.0–10.9 105 110 94 5 20 11 50 185 11.0– 22.9 .... 127 133 113 6 45 25 50 234 23.0– 34.9 .... 187 196 167 9 45 25 100 350 35.0– 64.9 .... 286 300 255 14 45 25 100 459 65.0– 94.9 .... 439 461 392 22 45 25 100 628 95.0– 104.9 .. 458 481 409 23 45 25 100 649 105.0– 144.9 .. 526 552 469 26 45 25 100 723 145.0– 194.9 .. 561 589 501 28 45 25 100 762 195.0– 209.9 .. 652 685 582 33 45 25 100 863 210.0– 300.0 .. 699 734 624 35 45 25 100 914 300.1– 350.0 .. 884 928 789 44 45 25 100 1,117 Notes: 1 Dry weight is the manufacturer’s published weight for the shortest midsection increased by 10 percent to account for longer midsections and additional required hardware usually not included in published weights. This weight is intended to represent the heaviest model in each power category. For boats designed with a transom height of 20 inches or less, the weight in Column 2 may be reduced by 10 percent. Recalculate Columns 3, 4, and 9 as appropriate. 2 For diesel outboards, replace the value in Column 2 with the manufacturer’s published dry weight + 10 percent. 3 Running weight is the dry weight plus fluids (including 2-stroke oil) and the heaviest recommended propeller. Calculated as 5 percent of dry weight. 4 Swamped weight is 85 percent of running weight. 5 Rigging and controls include engine related hardware required to complete the installation (e.g., controls, cables, hydraulic hoses, steering pumps and cylinders). Calculated as 5 percent of dry weight. 6 If the boat is equipped with a permanent fuel system and is not intended to use a portable tank, the portable fuel tank weight may be omitted.

Subpart F—Flotation Requirements fect vessels, amphibious vessels, and for Inboard Boats, Inboard/ raceboats. Outdrive Boats, and Airboats [CGD 75–168, 42 FR 20243, Apr. 18, 1977, as amended by USCG–1999–5832, 64 FR 34716, June 29, 1999] SOURCE: CGD 75–168, 42 FR 20243, Apr. 18, 1977, unless otherwise noted. § 183.105 Quantity of flotation re- § 183.101 Applicability. quired. This subpart applies to monohull in- (a) Each boat must have enough flo- board boats, inboard/outdrive boats, tation to keep any portion of the boat and airboats less than 20 feet in length, above the surface of the water when except sailboats, canoes, kayaks, in- the boat has been submerged in calm, flatable boats, submersibles, surface ef- fresh water for at least 18 hours and loaded with: (1) A weight that, when submerged, equals two-fifteenths of the persons capacity marked on the boat;

1087

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01097 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR § 183.110 33 CFR Ch. I (7–1–20 Edition)

(2) A weight that, when submerged, § 183.112 Flotation material and air equals 25 percent of the dead weight; chambers. and (a) Flotation materials must meet (3) A weight in pounds that, when the requirements in § 183.114 as listed in submerged, equals 62.4 times the vol- Table 183.114 when used in the: (1) En- ume in cubic feet of the two largest air gine room bilge, (2) engine room, or (3) chambers, if air chambers are used for bilge, unless located in a sealed com- flotation. partment. (b) For the purpose of this section, (b) Air chambers used to meet the ‘‘dead weight’’ means the maximum flotation requirements of this subpart weight capacity marked on the boat must not be integral with the hull. minus the persons capacity marked on [CGD 77–145, 43 FR 56859, Dec. 4, 1978; 44 FR the boat. 47934, Aug. 16, 1979]

§ 183.110 Definitions. § 183.114 Test of flotation materials. For the purpose of this subpart: (a) Vapor test. The flotation material Bilge means the area in the boat, must not reduce in buoyant force more below a height of 4 inches measured than 5 percent after being immersed in from the lowest point in the boat a fully saturated gasoline vapor atmos- where liquid can collect when the boat phere for 30 days at a minimum tem- is in its static floating position, except perature of 38 °C. engine rooms. (b) 24-hour gasoline test. The flotation Connected means allowing a flow of material must not reduce in buoyant water in excess of one-quarter ounce force more than 5 percent after being immersed for 24 hours at 23 plus or per hour from the engine room bilge minus 2 °C in reference fuel B, of ASTM into any other compartment with a 12 D 471 (incorporated by reference, see inch head of water on the engine room § 183.5). side of the bulkhead. (c) 30-day gasoline test. The flotation Engine room bilge means the area in material must not reduce in buoyant the engine room or a connected com- force more than 5 percent after being partment below a height of 12 inches immersed for 30 days at 23 plus or measured from the lowest point where minus 2 °C in reference fuel B, of ASTM liquid can collect in these compart- D 471 (incorporated by reference, see ments when the boat is in its static § 183.5). floating position. (d) 24-hour oil test. The flotation ma- Engine room means the compartment terial must not reduce in buoyant force where a permanently installed gasoline more than 5 percent after being im- or diesel engine is installed, including mersed for 24 hours at 23 plus or minus connected compartments. 2 °C in reference oil No. 2, of ASTM D Open to atmosphere means a compart- 471 (incorporated by reference, see ment that has at least 15 square inches § 183.5). of open area directly exposed to the at- (e) 30-day oil test. The flotation mate- mosphere for each cubic foot of net rial must not reduce in buoyant force compartment volume. more than 5 percent after being immersed for 30 days at 23 plus or minus Sealed compartment means an enclo- 2 °C in reference oil No. 2, of ASTM D sure that can resist an exterior water 471 (incorporated by reference, see level of 12 inches without seepage of § 183.5). more than one-quarter fluid ounce per (f) 24-hour bilge cleaner test. The flota- hour. tion material must not reduce in buoy- [CGD 77–145, 43 FR 56858, Dec. 4, 1978, as ant force more than 5 percent after amended by CGD 82–010, 48 FR 8273, Feb. 28, being immersed for 24 hours at 23 plus 1983; CGD 85–098, 52 FR 19728, May 27, 1987; or minus 2 °C in a 5-percent solution of CGD 96–026, 61 FR 33670, June 28, 1996; USCG– trisodium phosphate in water. 1999–5832, 64 FR 34716, June 29, 1999; USCG– (g) 30-day bilge cleaner test. The flota- 1999–5151, 64 FR 67176, Dec. 1, 1999] tion material must not reduce in buoyant force more than 5 percent after

1088

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01098 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR Coast Guard, DHS § 183.210

being immersed for 30 days at 23 plus or bility and flotation tests prescribed in minus 2 °C in a 5-percent solution of §§ 183.225(a), 183.230(a), and 183.235(a). trisodium phosphate in water. (h) The buoyant force reduction in § 183.205 Passenger carrying area. paragraphs (a) through (g) of this sec- (a) For the purpose of this section a tion is measured in accordance with boat is level when it is supported on its ASTM D 2842 (incorporated by ref- keel at the two points shown in Figure erence, see § 183.5). 2. (b) As used in this subpart, the term TABLE 183.114—FLOTATION PERFORMANCE ‘‘passenger carrying area’’ means each TESTS area in a boat in which persons can sit in a normal sitting position or stand Area 183.110 while the boat is in operation. Pas- (c) En- senger carrying areas are illustrated in gine Test 183.114 (b) En- room Figures 3 through 8. gine unless (d) Bilge (c) The length of the passenger car- room open to bilge atmos- rying area is the distance along the phere centerline of the boat between two vertical lines, one at the forward end (a) Vapor test ...... X ...... (b) 24 hour gasoline test ...... X and one at the aft end of the passenger (c) 30 day gasoline test ...... X ...... carrying area when the boat is level as (d) 24 hour oil test ...... X illustrated in Figures 3 and 4. For (e) 30 day oil test ...... X ...... boats with a curved stem inside the (f) 24 hour bilge cleaner test ...... X (g) 30 day bilge cleaner test X ...... passenger carrying area, the forward vertical line is where a line 45 degrees to the horizontal when the boat is level [CGD 77–145, 43 FR 56859, Dec. 4, 1978; 44 FR 47934, Aug. 16, 1979, as amended by USCG– is tangent to the curve of the stem, as 2000–7223, 65 FR 40059, June 29, 2000] illustrated in Figure 5. For boats with cabins, the forward vertical line is where there is a minimum distance of Subpart G—Flotation Require- two feet between the inside top of the ments for Outboard Boats cabin and the water line formed when Rated for Engines of More the boat is swamped and loaded with Than 2 Horsepower weights under § 183.220 as illustrated in Figure 6. SOURCE: CGD 75–168, 42 FR 20243, Apr. 18, (d) The breadth of each passenger 1977, unless otherwise noted. carrying area is the distance between two vertical lines at the mid-length, GENERAL excluding consoles, of the passenger carrying area when the boat is level as § 183.201 Applicability. illustrated in Figures 7 and 8. For (a) This subpart applies to monohull boats with round chines inside the pas- outboard boats that are: senger carrying area, the vertical line (1) Less than 20 feet in length; and is where a transverse line 45 degrees to (2) Rated for outboard engines of the horizontal is tangent to the arc of more than 2 horsepower. the chine, as illustrated in Figure 8. (b) This subpart does not apply to [CGD 75–168, 42 FR 20243, Apr. 18, 1977, as sailboats, canoes, kayaks, inflatable amended by USCG–1999–5832, 64 FR 34716, boats, submersibles, surface effect ves- June 29, 1999] sels, amphibious vessels, and raceboats. § 183.210 Reference areas. [CGD 75–168, 42 FR 20243, Apr. 18, 1977, as amended by USCG–1999–5832, 64 FR 34716, (a) The forward reference area of a June 29, 1999] boat is the forward most 2 feet of the top surface of the hull or deck, as illus- § 183.202 Flotation and certification trated in Figure 9. requirements. (b) The aft reference area of a boat is Each boat to which this subpart ap- the aft most two feet of the top surface plies must be manufactured, con- of the hull or deck, as illustrated in structed, or assembled to pass the sta- Figure 9.

1089

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01099 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR § 183.215 33 CFR Ch. I (7–1–20 Edition)

§ 183.215 Reference depth. (3) The breadth of the shaded area, measured at the midlength of the pas- Reference depth is the minimum dis- senger carrying area, is equal to 40 per- tance between the uppermost surface of cent of the breadth of the passenger the submerged reference area of a boat carrying area of the boat. and the surface of the water measured at the centerline of the boat, as illus- (d) Weight must be placed in the nor- trated in Figure 10. If there is no deck mal operating position of the motor surface at the centerline of the boat and controls and the battery in lieu of from which a measurement can be this equipment. The required quantity made, the reference depth is the aver- of weight used for this purpose depends age of two depth measurements made upon the maximum rated horsepower on opposite sides of, and at an equal of the boat being tested and is specified distance from, the centerline of the in Columns 4 and 7 of Table 183.75 for boat. the swamped weight of the motor and controls and for the submerged weight § 183.220 Preconditioning for tests. of the battery, respectively. (e) Permanent fuel tanks must be A boat must meet the following con- filled with fuel and each external open- ditions for at least 18 hours before the ing into the fuel tank must be sealed. tests required by §§ 183.225, 183,230, and (f) The boat must be keel down in the 183.235: water. (a) Manufacturer supplied permanent (g) The boat must be swamped, allow- appurtenances such as windshields and ing water to flow between the inside convertible tops must be installed on and outside of the boat, either over the the boat. sides, through a hull opening, or both. (b) The boat must be loaded with a Entrapped air in the flooded portion of quantity of weight that, when sub- the boat must be eliminated. merged, is equal to the sum of the fol- (h) Water must flood the two largest lowing: air chambers and all air chambers inte- (1) The sum of 50 percent of the first gral with the hull. 550 pounds of the persons capacity marked on the boat and 121⁄2 percent of [CGD 75–168, 42 FR 20243, Apr. 18, 1977, as the remainder of the persons capacity. amended by USCG–1999–5832, 64 FR 34716, (2) Twenty-five percent of the result June 29, 1999; USCG–2016–1012, 82 FR 16522, of the following calculation, but not Apr. 5, 2017] less than zero: The maximum weight § 183.222 Flotation material and air capacity marked on the boat; less the chambers. weight shown in Column 9 of Table 183.75 for maximum horsepower marked (a) Flotation materials must meet on the boat; less the persons capacity the requirements in § 183.114 as listed in marked on the boat. Table 183.114 when used in the bilge, (c) The weights required by para- unless located in a sealed compart- graph (b) of this section must be placed ment. in the boat so that the center of grav- (b) Air chambers used to meet the ity of each amount of weight required flotation requirements of this subpart by paragraphs (b)(1) and (b)(2) of this must not be integral with the hull. section is within the shaded area illus- [CGD 77–145, 43 FR 56859, Dec. 4, 1978; 44 FR trated in Figure 11. The location and 47934, Aug. 16, 1979] dimensions of the shaded area are as follows: TESTS (1) The shaded area is centered at the mid-length of the passenger carrying § 183.225 Flotation test for persons ca- area and at the mid-breadth of the pacity. boat; Flotation standard. When the condi- (2) The length of the shaded area, tions prescribed in § 183.220 are met, the measured along the centerline of the boat must float in fresh, calm water as boat, is equal to 40 percent of the follows: length of the passenger carrying area (a) The angle of heel does not exceed of the boat; and 10 degrees from the horizontal.

1090

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01100 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR Coast Guard, DHS § 183.301

(b) Any point on either the forward (ii) The length of the shaded area is or aft reference area is above the sur- equal to 70 percent of the length of the face of the water. passenger carrying area; and (c) The reference depth at the ref- (iii) The breadth of the shaded area is erence area that is opposite the ref- 6 inches from: erence area that is above the surface of (A) For weights placed on the floor, the water is 6 inches or less. the outboard perimeter of the passenger carrying area; and § 183.230 Stability test. (B) For weights placed on a seat, a (a) Flotation standard. When the con- vertical line inside the passenger car- ditions prescribed in § 183.220 (a), (d) rying area as illustrated in Figure 13. through (h) and paragraphs (b) and (c) (d) Placement of quantity of weight: of this section are met, the boat must port side. The quantity of weight re- float in fresh, calm water as follows: quired by paragraph (b)(1) of this sec- (1) The angle of heel does not exceed tion is placed along the port side of the 30 degrees from the horizontal. passenger carrying area in accordance (2) Any point on either the forward or with the conditions prescribed in para- aft reference area is above the surface graph (c)(2) of this section. of the water. (3) The reference depth at the ref- § 183.235 Level flotation test without erence area that is opposite the ref- weights for persons capacity. erence area that is above the surface of When the conditions prescribed in the water is 12 inches or less. § 183.220 (a) and (d) through (h) are met, (b) Quantity of weight used. Load the the boat must float in fresh, calm boat with a quantity of weight that, water as follows: when submerged, is equal to the sum of (a) The angle of heel does not exceed the following: 10 degrees from the horizontal. (1) One-half of the quantity of weight (b) Any point on either the forward required by § 183.220(b)(1). or aft reference area is above the sur- (2) The quantity of weight required face of the water. by § 183.220(b)(2). (c) Placement of quantity of weight: (c) The reference depth at the ref- starboard side. Place the weight re- erence area that is opposite the ref- quired by paragraph (b) of this section erence area that is above the surface of in the boat so that: the water is 6 inches or less. (1) The quantity of weight required [CGD 77–145, 43 FR 56859, Dec. 4, 1978, as by § 183.220(b)(2) is positioned in accord- amended by USCG–1999–5832, 64 FR 34716, ance with § 183.220(c); and June 29, 1999] (2) One-half the quantity of weight required by § 183.220(b)(1) is uniformly Subpart H—Flotation Requirements distributed over a distance along the for Outboard Boats Rated for outboard perimeter of the starboard Engines of 2 Horsepower or side of the passenger carrying area that is equal to at least 30 percent of Less the length of the passenger carrying area so that the center of gravity of SOURCE: CGD 75–168, 42 FR 20245, Apr. 18, the quantity of weight is located with- 1977, unless otherwise noted. in the shaded area illustrated in Figure 12, the center of gravity of the amount GENERAL of weight placed on the floor of the § 183.301 Applicability. boat is at least 4 inches above the floor, and the center of gravity of the (a) This subpart applies to monohull amount of weight placed on a seat is at outboard boats that are: least 4 inches above the seat. The loca- (1) Less than 20 feet in length; and tion and dimensions of the shaded area (2) Rated for manual propulsion or are as follows: outboard engines of 2 horsepower or (i) The shaded area is centered at the less. mid-length of the passenger carrying (b) This subpart does not apply to area; sailboats, canoes, kayaks, inflatable

1091

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01101 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR § 183.302 33 CFR Ch. I (7–1–20 Edition)

boats, submersibles, surface effect ves- § 183.310 Reference areas. sels, amphibious vessels, and raceboats. (a) The forward reference area of a [CGD 75–168, 42 FR 20245, Apr. 18, 1977, as boat is the forwardmost 2 feet of the amended by USCG–1999–5832, 64 FR 34716, top surface of the hull or deck as illus- June 29, 1999] trated in Figure 9. (b) The aft reference area of a boat is § 183.302 Flotation requirements. the aftmost two feet of the top surface Each boat to which this subpart ap- of the hull or deck, as illustrated in plies must be manufactured, con- Figure 9. structed, or assembled to pass the stability and flotation tests prescribed in § 183.315 Reference depth. §§ 183.325(a), 183.330(a), and 183.335(a). Reference depth is the minimum distance between the uppermost surface of § 183.305 Passenger carrying area. the submerged reference area of a boat (a) For the purpose of this section, a and the surface of the water measured boat is level when it is supported on its at the centerline of the boat, as illus- keel at the two points shown in Figure trated in Figure 10. If there is no deck 2. surface at the centerline of the boat (b) As used in this subpart, the term from which a measurement can be ‘‘passenger carrying area’’ means each made, the reference depth is the aver- area in a boat in which persons can sit age of two depth measurements made in a normal sitting position or stand on opposite sides of, and at an equal while the boat is in operation. Pas- distance from, the centerline of the senger carrying areas are illustrated in boat. Figures 3 through 8. § 183.320 Preconditioning for tests. (c) The length of each passenger carrying area is the distance along the A boat must meet the following con- centerline of the boat between two ditions for at least 18 hours before the vertical lines, one at the forward end tests required by §§ 183.325, 183.330, and and one at the aft end of the passenger 183.335: carrying area, when the boat is level, (a) Manufacturer supplied permanent as illustrated in Figures 3 and 4. For appurtenances such as windshields, and boats with a curved stem inside the convertible tops must be installed on passenger carrying area, the forward the boat. vertical line is where a line 45 degrees (b) The boat must be loaded with a to the horizontal when the boat is level quantity of weight that, when sub- is tangent to the curve of the stem, as merged, is equal to the sum of the fol- illustrated in Figure 5. For boats with lowing: (1) Two-fifteenths of the persons ca- cabins, the forward vertical line is pacity marked on the boat. where there is a minimum distance of (2) Twenty-five percent of the result two feet between the inside top of the of the following calculation, but not cabin and the water line formed when less than zero: the maximum weight the boat is swamped and loaded with capacity marked on the boat; less the weights under § 183.320 as illustrated in weight shown in Column 9 of Table Figure 6. 183.75 for the maximum horsepower (d) The breadth of the passenger car- marked on the boat; less the persons rying area is the distance beteen two capacity marked on the boat. vertical lines at the mid-length, ex- (c) The weights required by para- cluding consoles, of the passenger car- graph (b) of this section are placed in rying area when the boat is level as il- the boat so that the center of gravity lustrated in Figures 7 and 8. For boats of each amount of weight required by with round chines inside the passenger paragraphs (b)(1) and (b)(2) of this sec- carrying area, the vertical line is tion is within the shaded area illus- where a transverse line 45 degrees to trated in Figure 11. The location and the horizontal is tangent to the arc of dimensions of the shaded area are as the chine, as illustrated in Figure 7. follows: [CGD 75–168, 42 FR 20245, Apr. 18, 1977; 42 FR (1) The shaded area is centered at the 24738, May 16, 1977] mid-length of the passenger carrying

1092

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01102 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR Coast Guard, DHS § 183.330

area and at the mid-breadth of the (c) The reference depth at the ref- boat; erence area that is opposite the ref- (2) The length of the shaded area, erence area that is above the surface of measured along the centerline of the the water is 6 inches or less. boat, is equal to 40 percent of the length of the passenger carrying area § 183.330 Stability test. of the boat; and (a) Flotation standard. When the con- (3) The breadth of the shaded area, ditions prescribed in § 183.320 (a), (d) measured at the mid-length of the pas- through (g) and paragraphs (b) and (c) senger carrying area, is equal to 40 per- of this section are met, the boat must cent of the breadth of the passenger float in fresh, calm water as follows: carrying area of the boat. (1) The angle of heel does not exceed (d) Weight must be placed in the nor- 30 degrees from the horizontal. mal operating position of the motor (2) Any point on either the forward or and controls in lieu of this equipment. aft reference area is above the surface The quantity of weight used for this of the water. purpose depends upon the maximum (3) The reference depth at the ref- rated horsepower of the boat being erence area that is opposite the ref- tested and is specified in Column 4 of erence area that is above the surface of Table 183.75 for the swamped weight of the water is 12 inches or less. the motor and controls. (b) Quantity of weight used. Load the (e) Permanent fuel tanks must be boat with quantity of weight that, filled with fuel and each external open- when submerged, is equal to the sum of ing into the fuel tank must be sealed. the following: (f) The boat must be keel down in the (1) One-half the quantity of weight water. required by § 183.320(b)(1). (g) The boat must be swamped, allow- (2) The quantity of weight required ing water to flow between the inside by § 183.320(b)(2). and the outside of the boat, either over (c) Placement of quantity of weight: the sides, through a hull opening, or starboard side. Place the quantity of both. Entrapped air in the flooded por- weight required by paragraph (b) of tion of the boat must be eliminated. this section in the boat so that: (1) The quantity of weight required [CGD 75–168, 42 FR 20245, Apr. 18, 1977, as by § 183.320(b)(2) is positioned in accord- amended by USCG–2016–1012, 82 FR 16522, ance with § 183.320(c); and Apr. 5, 2017] (2) One-half the quantity of weight § 183.322 Flotation materials. required by § 183.320(b)(1) is uniformly distributed over a distance along the (a) Flotation materials must meet outboard perimeter of the starboard the requirements in § 183.114 as listed in side of the passenger carrying area Table 183.114 when used in the bilge, that is equal to at least 30 percent of unless located in a sealed compart- the length of the passenger carrying ment. area so that the center of gravity of [CGD 77–145, 43 FR 56859, Dec. 4, 1978; 44 FR the quantity of weight is located with- 47934, Aug. 16, 1979] in the shaded area illustrated in Figure 12, the center of gravity of the amount TESTS of weight placed on the floor of the boat is at least 4 inches above the floor § 183.325 Flotation test for persons ca- and the center of gravity of the pacity. amount of weight placed on a seat is at Flotation standard. When the condi- least 4 inches above the seat. The loca- tions prescribed in § 183.320 are met, the tion and dimensions of the shaded area boat must float in fresh, calm water as are as follows: follows: (i) The shaded area is centered at the (a) The angle of heel does not exceed mid-length of the passenger carrying 10 degrees from the horizontal. area; (b) Any point on either the forward (ii) The length of the shaded area is or aft reference area is above the sur- equal to 70 percent of the length of the face of the water. passenger carrying area; and

1093

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01103 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR § 183.335 33 CFR Ch. I (7–1–20 Edition)

(iii) The breadth of the shaded area is the boat must float in fresh, calm 6 inches from: water as follows: (a) For weights placed on the floor, (a) The angle of heel does not exceed the outboard perimeter of the pas- 10 degrees from the horizontal. senger carrying area; and (b) Any point on either the forward (b) For weights placed on a seat, a or aft reference area is above the sur- vertical line inside the passenger car- face of the water. rying area as illustrated in Figure 13. (d) Placement of quantity of weight: (c) The reference depth at the ref- port side. The quantity of weight re- erence area that is opposite the ref- quired by paragraph (b)(1) of this sec- erence area that is above the surface of tion is placed along the port side of the the water is 6 inches or less. passenger carrying area in accordance [CGD 75–168, 42 FR 20245, Apr. 18, 1977, as with the conditions prescribed in para- amended by USCG–1999–5832, 64 FR 34716, graph (c)(2) of this section. June 29, 1999]

§ 183.335 Level flotation test without FIGURES TO SUBPART H OF PART 183 weights for persons capacity. When the conditions prescribed in § 183.320 (a) and (d) through (g) are met,

1094

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01104 Fmt 8010 Sfmt 8002 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR Coast Guard, DHS § 183.402

Subpart I—Electrical Systems board engines, for electrical generation, mechanical power, or propulsion. (b) [Reserved] SOURCE: CGD 73–217, 42 FR 5944, Jan. 31, 1977, unless otherwise noted. [CGD 73–217, 42 FR 5944, Jan. 31, 1977, as amended by CGD 81–092, 48 FR 55736, Dec. 15, GENERAL 1983; USCG–1999–5832, 64 FR 34716, June 29, 1999] § 183.401 Purpose, applicability, and effective dates. § 183.402 Definitions. (a) This subpart applies to all boats As used in this subpart— that have gasoline engines, except out- AWG means American Wire Gauge.

1095

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01105 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR EC18OC91.022 § 183.405 33 CFR Ch. I (7–1–20 Edition)

Electrical component means electrical between it and the gasoline fuel source; equipment such as, but not limited to, or conductors, solenoids, motors, genera- (3) The space between the electrical tors, alternators, distributors, resis- component and the gasoline fuel source tors, appliances and electrical control is at least two feet and the space is devices. open to the atmosphere. Pigtails means external power con- (c) Each bulkhead required by para- ductors or wires that are part of elec- graph (b)(1) of this section must: trical components and appliances, such (1) Separate the electrical component as bilge pumps, blowers, lamps, switch- from the gasoline fuel source and ex- es, solenoids, and fuses. tend both vertically and horizontally Sheath means a material used as a the distance of the open space between continuous protective covering, such as the fuel source and the ignition source; electrical tape, molded rubber, molded (2) Resist a water level that is 12 plastic, or flexible tubing, around one inches high or one-third of the max- or more insulated conductors. imum height of the bulkhead, whichever is less, without seepage of more [CGD 73–217, 42 FR 5944, Jan. 31, 1977, as amended by CGD 85–098, 52 FR 19728, May 27, than one-quarter fluid ounce of fresh 1987; CGD 96–026, 61 FR 33670, June 28, 1996] water per hour; and (3) Have no opening located higher § 183.405 General. than 12 inches or one-third the max- Each electrical component on a boat imum height of the bulkhead, which- to which this subpart applies must ever is less, unless the opening is used meet the requirements of this subpart for the passage of conductors, piping, unless the component is part of an out- ventilation ducts, mechanical equip- board engine or part of portable equipment, and similar items, or doors, ment. hatches, and access panels, and the maximum annular space around each MANUFACTURER REQUIREMENTS item or door, hatch or access panel must not be more than one-quarter § 183.410 Ignition protection. inch. (a) Each electrical component must not ignite a propane gas and air mix- § 183.415 Grounding. ture that is 4.25 to 5.25 percent propane If a boat has more than one gasoline gas by volume surrounding the elec- engine, grounded cranking motor cir- trical component when it is operated at cuits must be connected to each other each of its manufacturer rated voltages by a common conductor circuit that and current loadings, unless it is iso- can carry the starting current of each lated from gasoline fuel sources, such of the grounded cranking motor cir- as engines, and valves, connections, or cuits. other fittings in vent lines, fill lines, distribution lines or on fuel tanks, in § 183.420 Batteries. accordance with paragraph (b) of this (a) Each installed battery must not section. move more than one inch in any direc- (b) An electrical component is iso- tion when a pulling force of 90 pounds lated from a gasoline fuel source if: or twice the battery weight, whichever (1) A bulkhead that meets the re- is less, is applied through the center of quirements of paragraph (c) of this sec- gravity of the battery as follows: tion is between the electrical compo- (1) Vertically for a duration of one nent and the gasoline fuel source; minute. (2) The electrical component is: (2) Horizontally and parallel to the (i) Lower than the gasoline fuel boat’s center line for a duration of one source and a means is provided to pre- minute fore and one minute aft. vent fuel and fuel vapors that may leak (3) Horizontally and perpendicular to from the gasoline fuel source from be- the boat’s center line for a duration of coming exposed to the electrical com- one minute to starboard and one ponent; or minute to port. (ii) Higher than the gasoline fuel (b) Each battery must be installed so source and a deck or other enclosure is that metallic objects cannot come in

1096

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01106 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR Coast Guard, DHS § 183.425

contact with the ungrounded battery rent greater than that specified in terminals. Table 5 for the conductor’s gauge and (c) Each metallic fuel line and fuel temperature rating. system component within 12 inches and (c) For conductors in engine spaces, above the horizontal plane of the bat- amperages must be corrected by the tery top surface as installed must be appropriate correction factor in note 1 shielded with dielectric material. of Table 5. (d) Each battery must not be directly (d) Each conductor in a multicon- above or below a fuel tank, fuel filter, ductor sheath must be at least a No. 18 or fitting in a fuel line. AWG conductor. (e) A vent system or other means (e) Each conductor installed sepa- must be provided to permit the dis- rately must be at least a No. 16 AWG charge from the boat of hydrogen gas conductor. released by the battery. (f) Each No. 18 AWG conductor in a (f) [Reserved] multiconductor sheath may not extend (g) Each battery terminal connector out of the sheath more than 30 inches. must not depend on spring tension for (g) This section does not apply to its mechanical connection to the ter- communications systems; electronic minal. navigation equipment; electronic cir- [CGD 73–217, 42 FR 5944, Jan. 31, 1977, as cuits having a current flow of less than amended by CGD 81–092, 48 FR 55736, Dec. 15, one ampere; conductors which are to- 1983] tally inside an equipment housing; resistance conductors that control cir- § 183.425 Conductors: General. cuit amperage; high voltage secondary (a) Each conductor must be insu- conductors and terminations that are lated, stranded copper. in ignition systems; pigtails of less (b) Except for intermittent surges than seven inches of exposed length each conductor must not carry a cur- and cranking motor conductors.

TABLE 5—ALLOWABLE AMPERAGE OF CONDUCTORS

Temperature rating of conductor insulation Conductor size (AWG) 60 °C (140 75 °C 80 °C 90 °C 105 °C 125 °C 200 °C °F) (167 °F) (176 °F) (194 °F) (221 °F) (257 °F) (392 °F)

18 ...... 10 10 15 20 20 25 25 16 ...... 15 15 20 25 25 30 35 14 ...... 20 20 25 30 35 40 45 12 ...... 25 25 35 40 45 50 55 10 ...... 40 40 50 55 60 70 70 8 ...... 55 65 70 70 80 90 100 6 ...... 80 95 100 100 120 125 135 4 ...... 105 125 130 135 160 170 180 3 ...... 120 145 150 155 180 195 210 2 ...... 140 170 175 180 210 225 240 1 ...... 165 195 210 210 245 265 280 0 ...... 195 230 245 245 285 305 325 00 ...... 225 265 285 285 330 355 370 000 ...... 260 310 330 330 385 410 430 0000 ...... 300 360 385 385 445 475 510

NOTES

1. See the following table: 60 °C 75 °C 80 °C 90 °C 105 °C 125 °C 200 °C (140 °F) (167 °F) (176 °F) (194 °F) (221 °F) (257 °F) (392 °F) Temperature rating of conductor ...... 0.58 0.75 0.78 0.82 0.85 0.89 1.00 2. See the following table: Correction factor Number of current carrying conductors: 3 ...... 0.70 4 to 6 ...... 60 7 to 24 ...... 50 25 and above ...... 40

[CGD 73–217, 42 FR 5944, Jan. 31, 1977; 42 FR 24739, May 16, 1977, as amended by CGD 81–092, 48 FR 55736, Dec. 15, 1983]

1097

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01107 Fmt 8010 Sfmt 8016 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR § 183.430 33 CFR Ch. I (7–1–20 Edition)

§ 183.430 Conductors in circuits of less nition systems; and pigtails of less than 50 volts. than seven inches of exposed length. (a) Each conductor in a circuit that [CGD 73–217, 42 FR 5944, Jan. 31, 1977; 42 FR has a nominal voltage of less than 50 24739, May 16, 1977, as amended by CGD 80–047 volts must: and CGD 80–046, 45 FR 85450, Dec. 29, 1980; CGD 87–009, 53 FR 36972, Sept. 23, 1988] (1) Meet the requirements of § 183.435; or § 183.440 Secondary circuits of ignition (2) Meet: systems. (i) The insulating material tempera- (a) Each conductor in a secondary ture rating requirements of SAE circuit of an ignition system must Standard J378; and meet SAE Standard J557. (ii) SAE Standard J1127, or SAE (b) The connection of each ignition Standard 1128. conductor to a spark plug, coil, or dis- (b) This section does not apply to tributor must have a tight fitting cap, communication systems; electronic boot, or nipple. navigation equipment; resistance con- [CGD 73–217, 42 FR 5944, Jan. 31, 1977, as ductors that control circuit amperage; amended by USCG–1999–5832, 64 FR 34716, and pigtails of less than seven inches of June 29, 1999] exposed length. § 183.445 Conductors: Protection. [CGD 73–217, 42 FR 5944, Jan. 31, 1977, as amended by CGD 87–009, 53 FR 36971, Sept. 23, (a) Each conductor or group of con- 1988] ductors that passes through a bulkhead, structural member, junction box, § 183.435 Conductors in circuits of 50 or other rigid surface must be pro- volts or more. tected from abrasion. (b) Each ungrounded terminal or stud (a) Each conductor in a circuit that that is continuously energized must has a nominal voltage of 50 volts or meet § 183.455 or must have a boot, nip- more must be: ple, cap, cover, or shield that prevents (1) A conductor that has insulation accidental short-circuiting at the ter- listed and classified moisture resistant minals or studs. and flame retardant in Article 310, NFPA No. 70, National Electric Code; [CGD 81–092, 48 FR 55736, Dec. 15, 1983] (2) A flexible cord type SO, STO, ST, § 183.455 Overcurrent protection: Gen- SJO, SJT, or SJTO listed in Article eral. 400, NFPA No. 70, National Electric (a) Each ungrounded current-car- Code; rying conductor must be protected by a (3) A conductor that meets IEEE manually reset, tripfree circuit break- Standard 45. er or fuse. (4) A conductor that meets UL Stand- (b) A manually reset, trip-free circuit ard 1426. breaker or fuse must be placed at the (b) Where the nominal circuit voltage source of power for each circuit or con- of each of three or more current car- ductor except: rying conductors in a duct, bundle, or (1) If it is physically impractical to cable is 50 volts or more, the amper- place the circuit breaker or fuse at the ages of each of those conductors must source of power, it may be placed with- not exceed the value in table 5 multi- in seven inches of the source of power plied by the correction factor in note 2 for each circuit or conductor measured to Table 5 for the number of conductors along the conductor. that carry 50 volts or more. (2) If it is physically impractical to (c) This section does not apply to place the circuit breaker or fuse at or communication systems; electronic within seven inches of the source of power, it may be placed within 40 navigation equipment; resistance con- inches of the source of power for each ductors that control circuit amperage; circuit or conductor, measured along conductors in secondary circuits of ig- the conductor, if the conductor is contained throughout its entire distance

1098

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01108 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR Coast Guard, DHS § 183.510

between the source of power and the re- Subpart J—Fuel Systems quired circuit breaker or fuse in a sheath or enclosure such as a junction SOURCE: CGD 74–209, 42 FR 5950, Jan. 31, box, control box, or enclosed panel. 1977, unless otherwise noted. (c) The current rating of each circuit breaker or fuse must not exceed: GENERAL (1) For circuits of less than 50 volts, 150% of the value of the amperage in § 183.501 Applicability. Table 5 for the conductor size it is pro- (a) This subpart applies to all boats tecting; and that have gasoline engines, except out- (2) For circuits of 50 volts or more, board engines, for electrical genera- the value of the amperage in Table 5 tion, mechanical power, or propulsion. for the conductor size it is protecting. (b) [Reserved] If this value does not correspond to a standard size or rated circuit breaker [CGD 74–209, 42 FR 5950, Jan. 31, 1977, as or fuse the next larger size or rated cir- amended by CGD 81–092, 48 FR 55736, Dec. 15, 1983; USCG–1999–5832, 64 FR 34716, June 29, cuit breaker or fuse may be used if it 1999] does not exceed 150% of the allowed current capacity of the conductor. § 183.505 Definitions. (d) The voltage rating of each circuit As used in this subpart: breaker or fuse must not be less than Flame arrestor means a device or as- the nominal circuit voltage of the cir- sembly that prevents passage of flame cuit it is protecting. through a fuel vent. (e) This section does not apply to re- Fuel system means the entire assem- sistance conductors that control cir- bly of the fuel fill, vent, tank, and dis- cuit amperage; conductors in sec- tribution components, including ondary circuits of ignition systems; pumps, valves, strainers, carburetors, pigtails of less than seven inches of ex- and filters. posed length; and power supply conduc- Static floating position means the atti- tors in cranking motor circuits. tude in which a boat floats in calm [CGD 73–217, 42 FR 5944, Jan. 31, 1977, as water, with each fuel tank filled to its amended by CGD 78–090, 44 FR 68466, Nov. 29, rated capacity, but with no person or 1979] item of portable equipment on board. § 183.460 Overcurrent protection: Spe- [CGD 74–209, 42 FR 5950, Jan. 31, 1977, as cial applications. amended by CGD 85–098, 52 FR 19728, May 27, 1987] (a) Each ungrounded output conductor from a storage battery must § 183.507 General. have a manually reset, trip-free circuit Each fuel system component on a breaker or fuse, unless the output con- boat to which this subpart applies ductor is in the main power feed circuit must meet the requirements of this from the battery to an engine cranking subpart unless the component is part of motor. The circuit breaker or fuse an outboard engine or is part of port- must be within 72 inches of the battery able equipment. measured along the conductor, unless, for boats built prior to August 1, 1985, EQUIPMENT STANDARDS the circuit has a switch that dis- connects the battery. § 183.510 Fuel tanks. (b) Each ungrounded output con- (a) Each fuel tank in a boat must ductor from an alternator or generator, have been tested by its manufacturer except for self-limiting alternators or under § 183.580 and not leak when sub- generators, must have a circuit break- jected to the pressure marked on the er or fuse that has a current rating tank label under § 183.514(b)(5). that does not exceed 120 percent of the (b) Each fuel tank must not leak if maximum rated current of the alter- subjected to the fire test under nator or generator at 60 °C. § 183.590. Leakage is determined by the [CGD 73–217, 42 FR 5944, Jan. 31, 1977, as static pressure test under § 183.580, ex- amended by CGD 81–092, 48 FR 55736, Dec. 15, cept that the test pressure must be at 1983] least one-fourth PSIG.

1099

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01109 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR § 183.512 33 CFR Ch. I (7–1–20 Edition)

(c) Each fuel tank of less than 25 gal- rect sunlight, heat, cold, and wear ex- lons capacity must not leak if tested pected in normal operation of the boat, under § 183.584. without loss of legibility; and (d) Each fuel tank with a capacity of (2) Resist efforts to remove or alter 25 to 199 gallons must not leak if tested the information on the label without under § 183.586. leaving some obvious sign of such ef- (e) Each fuel tank of 200 gallons ca- forts. pacity or more must not leak if tested [CGD 74–209, 42 FR 5950, Jan. 31, 1977, as under §§ 183.586 and 183.588. amended by CGD 81–092, 48 FR 55737, Dec. 15, [CGD 74–209, 42 FR 5950, Jan. 31, 1977, as 1983; USCG–1999–5832, 64 FR 34716, June 29, amended by CGD 81–092, 48 FR 55736, Dec. 15, 1999] 1983] § 183.516 Cellular plastic used to en- § 183.512 Fuel tanks: Prohibited mate- case fuel tanks. rials. (a) Cellular plastic used to encase (a) A fuel tank must not be con- metallic fuel tanks must: structed from terneplate. (1) Not change volume by more than (b) Unless it has an inorganic sacrifi- five percent or dissolve after being im- cial galvanic coating on the inside and mersed in any of the following liquids outside of the tank, a fuel tank must for 24 hours at 29 °C: not be constructed from black iron or (i) Reference fuel B ASTM D 471 (in- carbon steel. corporated by reference, see § 183.5). (c) A fuel tank encased in cellular (ii) No. 2 reference oil of ASTM D 471 plastic or in fiber reinforced plastic (incorporated by reference, see § 183.5). must not be constructed from a ferrous (iii) Five percent solution of tri- alloy. sodium phosphate in water; and (2) Not absorb more than 0.12 pound [CGD 74–209, 42 FR 5950, Jan. 31, 1977; 42 FR of water per square foot of cut surface, 24739, May 16, 1977] measure under Military Specification § 183.514 Fuel tanks: Labels. MIL P–21929B. (b) Non-polyurethane cellular plastic (a) Each fuel tank must have a label used to encase metallic fuel tanks that meets the requirements of para- must have a compressive strength of at graphs (b) through (d) of this section. least 60 pounds per square inch at ten (b) Each label required by paragraph percent deflection measured under (a) of this section must contain the fol- ASTM D 1621 (incorporated by ref- lowing information: erence, see § 183.5), ‘‘Compressive (1) Fuel tank manufacturer’s name Strength of Rigid Cellular Plastics’’. (or logo) and address. (c) Polyurethane cellular plastic used (2) Month (or lot number) and year of to encase metallic fuel tanks must manufacture. (3) Capacity in U.S. gallons. have a density of at least 2.0 pounds (4) Material of construction. per cubic foot, measured under ASTM (5) The pressure the tank is designed D 1622 (incorporated by reference, see to withstand without leaking. § 183.5), ‘‘Apparent Density of Rigid Cel- (6) Model number, if applicable. lular Plastics.’’ (7) The statement, ‘‘This tank has [CGD 74–209, 42 FR 5950, Jan. 31, 1977, as been tested under 33 CFR 183.510(a).’’ amended by CGD 77–98, 42 FR 36253, July 14, (8) If the tank is tested under § 183.584 1977; CGD 81–092, 48 FR 55737, Dec. 15, 1983; at less than 25g vertical accelerations USCG–2000–7223, 65 FR 40059, June 29, 2000] the statement, ‘‘Must be installed aft of the boat’s half length.’’ § 183.518 Fuel tank openings. (c) Each letter and each number on a Each opening into the fuel tank must label must: be at or above the topmost surface of (1) Be at least 1⁄16 inch high and the tank. (2) Contrast with the basic color of the label or be embossed on the label. § 183.520 Fuel tank vent systems. (d) Each label must: (a) Each fuel tank must have a vent (1) Withstand the combined effects of system that prevents pressure in the exposure to water, oil, salt spray, di- tank from exceeding 80 percent of the

1100

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01110 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR Coast Guard, DHS § 183.534

pressure marked on the tank label § 183.528 Fuel stop valves. under § 183.514(b)(5). (a) Each electrically operated fuel (b) Each vent must: stop valve in a fuel line between the (1) Have a flame arrester that can be fuel tank and the engine must: cleaned unless the vent is itself a flame arrestor; and (1) Open electrically only when the ignition switch is on; and (2) Not allow a fuel overflow at the rate of up to two gallons per minute to (2) Operate manually. enter the boat. (b) If tested in accordance with the fire test under § 183.590, a fuel stop [CGD 74–209, 42 FR 5950, Jan. 31, 1977, as valve installed in a fuel line system re- amended by CGD 77–98, 42 FR 36253, July 14, quiring metallic fuel lines or ‘‘USCG 1977] Type A1’’ hose must not leak fuel. § 183.524 Fuel pumps. [CGD 74–209, 42 FR 5950, Jan. 31, 1977, as (a) Each diaphragm pump must not amended by CGD 85–098, 52 FR 19728, May 27, leak fuel from the pump if the primary 1987] diaphragm fails. § 183.530 Spud, pipe, and hose fitting (b) Each electrically operated fuel configuration. pump must not operate except when the engine is operating or when the en- Except when used for a tank fill line, gine is started. each spud, pipe, or hose fitting used (c) If tested under § 183.590, each fuel with hose clamps must have: pump, as installed in the boat, must (a) A bead; not leak more than five ounces of fuel (b) A flare; or in 21⁄2 minutes, inclusive of leaks from (c) A series of annular grooves or ser- fuel line, fuel filter and strainer. rations no less than 0.015 inches deep, except a continuous helical thread, [CGD 74–209, 42 FR 5950, Jan. 31, 1977, as knurl, or groove. amended by CGD 77–98, 42 FR 36253, July 14, 1977] [CGD 74–209, 42 FR 5950, Jan. 31, 1977, as amended by USCG–1999–5832, 64 FR 34716, § 183.526 Carburetors. June 29, 1999] (a) [Reserved] (b) Each carburetor must not leak § 183.532 Clips, straps, and hose more than five cubic centimeters of clamps. fuel in 30 seconds when: (a) Each clip, strap, and hose clamp (1) The float valve is open; must: (2) The carburetor is at half throttle; (1) Be made from a corrosion resist- and ant material; and (3) The engine is cranked without (2) Not cut or abrade the fuel line. starting; or (b) If tested in accordance with the (4) The fuel pump is delivering the fire test under § 183.590, a hose clamp maximum pressure specified by its installed on a fuel line system requir- manufacturer. ing metallic fuel lines or ‘‘USCG Type (c) Each updraft and horizontal draft A1’’ hose must not separate under a carburetor must have a device that: one pound tensile force. (1) Collects and holds fuel that flows out of the carburetor venturi section [CGD 74–209, 42 FR 5950, Jan. 31, 1977, as toward the air intake; amended by CGD 85–098, 52 FR 19728, May 27, 1987] (2) Prevents collected fuel from being carried out of the carburetor assembly § 183.534 Fuel filters and strainers. by the shock wave of a backfire or by reverse air flow; and If tested under § 183.590, each fuel fil- (3) Returns collected fuel to the enter and strainer, as installed in the gine induction system after the engine boat, must not leak more than five starts, ounces of fuel in 21⁄2 minutes inclusive of leaks from the fuel pump and fuel [CGD 74–209, 42 FR 5950, Jan. 31, 1977, as line. amended by CGD 77–98, 42 FR 36253, July 14, 1977] [CGD 77–98, 42 FR 36253, July 14, 1977]

1101

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01111 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR § 183.536 33 CFR Ch. I (7–1–20 Edition)

§ 183.536 Seals and gaskets in fuel fil- (2) The year in which the hose was ters and strainers. manufactured. (a) [Reserved] (3) The manufacturer’s name or reg- (b) Each gasket and each sealed joint istered trademark. in a fuel filter and strainer must not (g) Each character must be block leak when subjected for 24 hours to a capital letters and numerals that are gasoline that has at least a 50 percent at least one eighth-inch high. aromatic content at the test pressure (h) Each marking must be perma- marked on the fuel tank label. nent, legible, and on the outside of the [CGD 81–092, 48 FR 55737, Dec. 15, 1983] hose at intervals of 12 inches or less. [CGD 85–098, 52 FR 19728, May 27, 1987] § 183.538 Metallic fuel line materials. Each metallic fuel line connecting § 183.542 Fuel systems. the fuel tank with the fuel inlet con- (a) Each fuel system in a boat must nection on the engine must: have been tested by the boat manufac- (a) Be made of seamless annealed turer and not leak when subjected to copper, nickel copper, or copper-nickel; the greater of the following pressures: and (1) Three pounds per square inch; or (b) Except for corrugated flexible fuel line, have a minimum wall thickness of (2) One and one-half times the pres- 0.029 inches. sure created in the lowest part of the fuel system when it is filled to the § 183.540 Hoses: Standards and mark- level of overflow with fuel. ings. (b) The test pressure shall be ob- (a) ‘‘USCG Type A1’’ hose means hose tained with air or inert gas. that meets the performance require- [CGD 81–092, 48 FR 55737, Dec. 15, 1983] ments of: (1) SAE Standard J1527DEC85, Class 1 MANUFACTURER REQUIREMENTS and the fire test in § 183.590; or (2) Underwriters’ Laboratories, Inc. § 183.550 Fuel tanks: Installation. (UL) Standard 1114. (a) Each fuel tank must not be inte- (b) ‘‘USCG Type A2’’ hose means hose gral with any boat structure or mount- that meets the performance require- ed on an engine. ments of SAE Standard J1527DEC85, (b) Each fuel tank must not move at Class 2 and the fire test in § 183.590; (c) ‘‘USCG Type B1’’ hose means hose the mounting surface more than that meets the performance require- onefourth inch in any direction. ments of SAE Standard J1527DEC85, (c) Each fuel tank must not support a Class 1. deck, bulkhead, or other structural (d) ‘‘USCG Type B2’’ hose means hose component. that meets the performance require- (d) Water must drain from the top ments of SAE Standard J1527DEC85, surface of each metallic fuel tank when Class 2. the boat is in its static floating position. NOTE: SAE Class 1 hose has a permeation rating of 100 grams or less fuel loss per (e) Each fuel tank support, chock, or square meter of interior surface in 24 hours. strap that is not integral with a metal- SAE Class 2 hose has a permeation rating lic fuel tank must be insulated from of 300 grams or less fuel loss per square the tank surface by a nonmoisture ab- meter of interior surface in 24 hours. sorbing material. (e) Each ‘‘USCG Type A1,’’ ‘‘USCG (f) Cellular plastic must not be the Type A2,’’ ‘‘USCG Type B1,’’ and sole support for a metallic fuel tank. ‘‘USCG Type B2’’ hose must be identi- (g) If cellular plastic is the sole sup- fied by the manufacturer by a marking port of a non-metallic fuel tank, the on the hose. cellular plastic must meet the require- (f) Each marking must contain the ments of § 183.516 (b) or (c). following information in English: (h) Each fuel tank labeled under (1) The statement ‘‘USCG TYPE (in- § 183.514(b)(8) for installation aft of the sert A1 or A2 or B1 or B2).’’ boat’s half length must be installed

1102

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01112 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR Coast Guard, DHS § 183.560

with its center of gravity aft of the (B) The boat is in its static floating boat’s half length. position, and (C) The fuel system is filled to the [CGD 74–209, 42 FR 5950, Jan. 31, 1977, as capacity market on the tank label amended by CGD 81–092, 48 FR 55737, Dec. 15, 1983; USCG–1999–5832, 64 FR 34716, June 29, under § 183.514(b)(3). 1999] (2) From the fuel tank to the fuel inlet connection on the engine must be: § 183.552 Plastic encased fuel tanks: (i) ‘‘USCG Type A1’’; or Installation. (ii) ‘‘USCG Type B1’’ if no more than 1 (a) Each fuel tank encased in cellular five ounces of fuel is discharged in 2 ⁄2 plastic foam or in fiber reinforced plas- minutes when: tic must have the connections, fittings, (A) The hose is severed at the point and labels accessible for inspection and where maximum drainage of fuel would maintenance. occur, (B) The boat is in its static floating (b) If a metallic fuel tank is encased position, and in cellular plastic or in fiber reinforced (C) The fuel system is filled to the plastic, water must not collect between capacity marked on the tank label the plastic and the surface of the tank under § 183.514(b)(3). or be held against the tank by cap- (c) Each hose must be secured by: illary action. (1) A swaged sleeve; (c) If the plastic is bonded to the sur- (2) A sleeve and threaded insert; or face of a metallic fuel tank, the adhe- (3) A hose clamp. sive strength of the metal to the plas- (d) The inside diameter of a hose tic bond must exceed the cohesive must not exceed the actual minor out- strength of the plastic. side diameter of the connecting spud, pipe, or fitting by more than the dis- § 183.554 Fittings, joints, and connec- tance shown in Table 8. tions. Each fuel system fitting, joint, and TABLE 8 connection must be arranged so that it If minor outside diameter of The inside diameter of the can be reached for inspection, removal, the connecting spud, pipe, hose must not exceed the or fitting is— minor outside diameter of or maintenance without removal of the connecting spud, pipe, permanent boat structure. or hose fitting by more than the following distance: § 183.556 Plugs and fittings. Less than 3⁄8 in ...... 0.020 in. 3⁄8 in. to 1 in ...... 0.035 in. (a) A fuel system must not have a fit- Greater than 1 in ...... 0.065 in. ting for draining fuel. (b) A plug used to service the fuel fil- [CGD 74–209, 42 FR 5950, Jan. 31, 1977, as amended by CGD 85–098, 52 FR 19728, May 27, ter or strainer must have a tapered 1987] pipethread or be a screw type fitted with a locking device other than a split § 183.560 Hose clamps: Installation. lock washer. Each hose clamp on a hose from the fuel tank to the fuel inlet connection § 183.558 Hoses and connections. on the engine, a hose between the fuel (a) Each hose used between the fuel pump and the carburetor, or a vent line pump and the carburetor must be must: ‘‘USCG Type A1’’ hose. (a) Be used with hose designed for (b) Each hose used— clamps; (1) For a vent line or fill line must (b) [Reserved] be: (c) Be beyond the bead, flare, or over (i) ‘‘USCG Type A1’’ or ‘‘USCG Type the serrations of the mating spud, pipe, A2’’; or or hose fitting; and (ii) ‘‘USCG Type B1’’ or ‘‘USCG Type (d) Not depend solely on the spring B2’’ if no more than five ounces of fuel tension of the clamp for compressive is discharged in 21⁄2 minutes when: force. (A) The hose is severed at the point [CGD 74–209, 42 FR 5950, Jan. 31, 1977, as where maximum drainage of fuel would amended by CGD 81–092, 48 FR 55737, Dec. 15, occur, 1983]

1103

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01113 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR § 183.562 33 CFR Ch. I (7–1–20 Edition)

§ 183.562 Metallic fuel lines. be metallic fuel lines meeting the construction requirements of § 183.538 or (a) Each metallic fuel line that is ‘‘USCG Type A1’’ hose, with one or two mounted to the boat structure must be manual shutoff valves installed as fol- connected to the engine by a flexible lows: fuel line. (1) Directly at the fuel tank connec- (b) Each metallic fuel line must be tion arranged to be readily accessible attached to the boat’s structure within for operation from outside of the com- four inches of its connection to a flexi- partment, and ble fuel line. (2) If the length of fuel line from the § 183.564 Fuel tank fill system. tank outlet to the engine inlet is greater than 12 feet, a manual shutoff valve (a) Each fuel fill opening must be lo- shall be installed at the fuel inlet con- cated so that a gasoline overflow of up nection to the engine. to five gallons per minute for at least five seconds will not enter the boat [CGD 74–209, 42 FR 5950, Jan. 31, 1977, as when the boat is in its static floating amended by CGD 81–092, 48 FR 55737, Dec. 15, 1983; CGD 85–098, 52 FR 19729, May 27, 1987] position. (b) Each hose in the tank fill system § 183.570 Fuel filters and strainers: In- must be secured to a pipe, spud, or hose stallation. fitting by: Each fuel filter and strainer must be (1) A swaged sleeve; supported on the engine or boat struc- (2) A sleeve and threaded insert; or ture independent from its fuel line con- (3) Two adjacent metallic hose nections, unless the fuel filter or clamps that do not depend solely on strainer is inside a fuel tank. the spring tension of the clamps for compressive force. § 183.572 Grounding. (c) Each hose clamp in the tank fill Each metallic component of the fuel system must be used with a hose de- fill system and fuel tank which is in signed for clamps. contact with fuel must be statically (d) Hose clamps used in the tank fill grounded so that the resistance be- system must: tween the ground and each metallic (1) Have a minimum nominal band component of the fuel fill system and width of at least one-half inch; and fuel tank is less than 100 ohms. (2) Be over the hose and the spud, pipe, or hose fitting. TESTS [CGD 74–209, 42 FR 5950, Jan. 31, 1977, as amended by CGD 81–092, 48 FR 55737, Dec. 15, § 183.580 Static pressure test for fuel 1983] tanks. A fuel tank is tested by performing § 183.566 Fuel pumps: Placement. the following procedures in the fol- Each fuel pump must be on the en- lowing order: gine it serves or within 12 inches of the (a) Fill the tank with air or inert gas engine, unless it is a fuel pump used to to the pressure marked on the tank transfer fuel between tanks. label under § 183.514(b)(5). (b) Examine each tank fitting and § 183.568 Anti-siphon protection. seam for leaks using a leak detection Each fuel line from the fuel tank to method other than the pressure drop the fuel inlet connection on the carbu- method. retor must: [CGD 74–209, 42 FR 5950, Jan. 31, 1977, as (a) Be above the level of the tank top; amended by CGD 81–092, 48 FR 55737, Dec. 15, or 1983] (b) Have an anti-siphon device or an electrically operated fuel stop valve: § 183.584 Shock test. (1) At the tank withdrawal fitting; or A fuel tank is tested by performing (2) Installed so the line from the fuel the following procedures in the fol- tank is above the top of the tank; or lowing order: (c) Provided that the fuel tank top is (a) Perform the static pressure test below the level of the carburetor inlet, under § 183.580.

1104

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01114 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR Coast Guard, DHS § 183.590

(b) If the tank is non-metallic, fill it (g) Perform the static pressure test to capacity with a gasoline that has at under § 183.580. least a 50 percent aromatic content. Keep the fuel in the tank at 21 °C or § 183.588 Slosh test. higher for 30 days prior to testing. A fuel tank is tested by performing (c) Mount the tank to the platform of the following procedures in the fol- an impact test machine. lowing order: (d) Fill the tank to capacity with (a) Perform the static pressure test water. under § 183.580. (e) Apply one of the following accel- (b) Perform the pressure impulse test erations within three inches of the cen- under § 183.586. ter of the horizontal mounting surface (c) Secure the tank to the platform of of the tank. The duration of each a tank rocker assembly. vertical acceleration pulse is measured (d) Fill the tank to one-half capacity at the base of the shock envelope. with water. (1) If the tank is not labeled under (e) Cap and seal each opening in the § 183.514(b)(8) for installation aft of the tank. half length of the boat, apply 1000 cy- (f) Apply 500,000 cycles or rocking cles of 25g vertical accelerations at a motion 15 degrees to each side of the rate of 80 cycles or less per minute. The tank centerline at the rate of 15 to 20 duration of the acceleration pulse must cycles a minute. The axis of rotation of be between 6 and 14 milliseconds. the rocker and fuel tank must be per- (2) If the tank is manufactured for in- pendicular to the centerline of the stallation with its center of gravity aft tank length at a level six inches or less of the half length of the boat, apply above or below the tank’s bottom. 1000 cycles of 15g vertical accelerations (g) Perform the static pressure test at a rate of 80 cycles or less per under § 183.580. minute. The duration of the shock [CGD 74–209, 42 FR 5950, Jan. 31, 1977, as pulse must be between 6 and 14 milli- amended by USCG–1999–5832, 64 FR 34716, seconds. June 29, 1999] (f) Perform the static pressure test under § 183.580. § 183.590 Fire test. [CGD 74–209, 42 FR 5950, Jan. 31, 1977, as (a) A piece of equipment is tested amended by USCG–1999–5832, 64 FR 34716, under the following conditions and pro- June 29, 1999] cedures: (1) Fuel stop valves, ‘‘USCG Type A1’’ § 183.586 Pressure impulse test. or USCG Type A2’’ hoses and hose A fuel tank is tested by performing clamps are tested in a fire chamber. the following procedures in the fol- (2) Fuel filters, strainers, and pumps lowing order: are tested in a fire chamber or as in- (a) Perform the static pressure test stalled on the engine in the boat. under § 183.580. (3) Fuel tanks must be tested filled (b) If the tank is non-metallic, fill it with fuel to one-fourth the capacity to capacity with a gasoline that has at marked on the tank in a fire chamber least a 50 percent aromatic content. or in an actual or simulated hull sec- Keep the fuel in the tank at 21 °C or tion. higher for 30 days prior to testing. (b) Each fire test is conducted with (c) Mount the tank on a test plat- free burning heptane and the compo- form. nent must be subjected to a flame for (d) Fill the tank to capacity with 21⁄2 minutes. water. (c) If the component is tested in a (e) Cap and seal each opening in the fire chamber: tank. (1) The temperature within one inch (f) Apply 25,000 cycles of pressure im- of the component must be at least 648 pulse at the rate of no more than 15 im- °C sometime during the 21⁄2 minute pulses per minute varying from zero to test; three PSIG to zero inside the tank top (2) The surface of the heptane must from a regulated source of air, inert be 8 to 10 inches below the component gas, or water. being tested; and

1105

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01115 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR § 183.601 33 CFR Ch. I (7–1–20 Edition)

(3) The heptane must be in a con- Branch, U.S. Coast Guard Stop 7501, tainer that is large enough to permit 2703 Martin Luther King Jr. Avenue the perimeter of the top surface of the SE., Washington, DC 20593–7501. It is heptane to extend beyond the vertical also available at the National Archives projection of the perimeter of the com- and Records Administration (NARA). ponent being tested. For information on the availability of (d) If the component is being tested this material at NARA, call 202–741– as installed on an engine, heptane suf- 6030, or go to: http://www.archives.gov/ ficient to burn 21⁄2 minutes must be federallregister/ poured over the component and allowed codeloflfederallregulations/ to run into a flat bottomed pan under ibrllocations.html. the engine. The pan must be large (1) AMCA Standard 210–74, Figure 12. enough to permit the perimeter of the Air Moving and Conditioning Associa- top surface of the heptane to extend be- tion, 30 West University Drive, Arling- yond the vertical projection of the pe- ton Heights, Illinois 60004. rimeter of the engine. (2) ASTM Standard D 471. American (e) If a fuel tank is being tested in an Society for Testing and Materials, 100 actual or simulated hull section, the Barr Harbor Drive, West actual or simulated hull section must Conshohocken, PA 19428–2959. be of sufficient size to contain enough (3) UL Standard 1128, Underwriters heptane to burn for 21⁄2 minutes in a Laboratories, Incorporated, 12 Labora- place adjacent to the tank. tory Drive, Research Triangle Park, [CGD 74–209, 42 FR 5950, Jan. 31, 1977, as NC 27709–3995. amended by CGD 77–98, 42 FR 36253, July 14, (b) The Director of the Federal Reg- 1977; CGD 85–098, 52 FR 19729, May 27, 1987] ister approved the incorporation by reference in paragraph (a)(2) on Sep- Subpart K—Ventilation tember 26, 1976 and the incorporations in paragraphs (a) (1) and (3) on March 24, 1978. SOURCE: CGD 76–082, 44 FR 73027, Dec. 17, 1979, unless otherwise noted. [CGD 76–082, 44 FR 73027, Dec. 17, 1979, as amended by CGD 82–010, 48 FR 8273, Feb. 28, § 183.601 Applicability. 1983; USCG–2000–7223, 65 FR 40059, June 29, This subpart applies to all boats that 2000; 69 FR 18803, Apr. 9, 2004; USCG–2010–0351, have gasoline engines for electrical 75 FR 36288, June 25, 2010; USCG–2014–0410, 79 FR 38449, July 7, 2014] generation, mechanical power, or propulsion. § 183.610 Powered ventilation system. [USCG–1999–5832, 64 FR 34716, June 29, 1999] (a) Each compartment in a boat that has a permanently installed gasoline § 183.605 Definitions. engine with a cranking motor must: As used in this subpart: (1) Be open to the atmosphere, or ‘‘Fuel’’ means gasoline. (2) Be ventilated by an exhaust blow- ‘‘Open to the atmosphere’’ means a er system. compartment that has at least 15 (b) Each exhaust blower or combina- square inches of open area directly ex- tion of blowers must be rated at an air posed to the atmosphere for each cubic flow capacity not less than that com- foot of net compartment volume. puted by the formulas given in Table [CGD 76–082, 44 FR 73027, Dec. 17, 1979, as 183.610, Column 2. Blower rating must amended by CGD 85–098, 52 FR 19729, May 27, be determined according to AMCA 1987] Standard 210–74, Figure 12, or UL Standard 1128. § 183.607 Incorporation by reference. (a) The following standards are incor- TABLE 183.610 porated by reference. Copies may be Col. 1 1 Col. 2 2 Col. 3 3 obtained from the sources indicated. Below 34 ..... Fr = 50 ...... Fo = 20 They are also available for inspection 34 to 100 ..... Fr = 1.5V ...... Fo = 0.6V at Coast Guard Headquarters. Contact Over 100 ..... Fr = V/2 + 100 ...... Fo = 0.2V + 40 Commandant (CG–BSX–23), Attn: Rec- 1 Net compartment volume of engine compartment and reational Boating Product Assurance compartments open thereto (V) cubic feet.

1106

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01116 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR Coast Guard, DHS § 183.630

2 Rated blower capacity (Fr) cubic feet per minute. meability rate exceeding 1.2 grams of 3 Blower system output (Fo) cubic feet per minute. fuel loss in 24 hours. (c) Each exhaust blower system re- NOTE: Reference fuel ‘‘C’’ at 40 degrees Cel- quired by paragraph (a)(2) of this sec- sius plus or minus 2 degrees Celsius from tion must exhaust air from the boat at ASTM standard D 471 (incorporated by ref- a rate which meets the requirements of erence, see § 183.5) is to be used in deter- Table 183.610, Column 3 when the en- mining the permeability rate. gine is not operating. (b) Each supply opening required in (d) Each intake duct for an exhaust § 183.630 must be located on the exterior blower must be in the lower one-third surface of the boat. of the compartment and above the nor- (c) An accommodation compartment mal level of accumulated bilge water. above a compartment requiring ven- (e) More than one exhaust blower tilation that is separated from the may be used in combination to meet compartment requiring ventilation by the requirements of this section. a deck or other structure is excepted (f) Each boat that is required to have from paragraph (a)(2) of this section. an exhaust blower must have a label [CGD 76–082, 44 FR 73027, Dec. 17, 1979, as that: amended by CGD 76–082(a), 46 FR 27645, May (1) Is located as close as practicable 21, 1981; CGD 85–059, 51 FR 37577, Oct. 23, 1986; to each ignition switch; USCG–1999–5832, 64 FR 34716, June 29, 1999; (2) Is in plain view of the operator; USCG–1999–5151, 64 FR 67176, Dec. 1, 1999] and § 183.630 Standards for natural ven- (3) Has at least the following infor- tilation. mation: (a) For the purpose of § 183.620, ‘‘nat- WARNING—GASOLINE VAPORS CAN EX- ural ventilation’’ means an airflow in a PLODE. BEFORE STARTING ENGINE OP- compartment in a boat achieved by ERATE BLOWER FOR 4 MINUTES AND having: CHECK ENGINE COMPARTMENT BILGE FOR GASOLINE VAPORS. (1) A supply opening or duct from the atmosphere or from a ventilated com- § 183.620 Natural ventilation system. partment or from a compartment that is open to the atmosphere; and (a) Except for compartments open to the atmosphere, a natural ventilation (2) An exhaust opening into another system that meets the requirements of ventilated compartment or an exhaust § 183.630 must be provided for each com- duct to the atmosphere. partment in a boat that: (b) Each exhaust opening or exhaust (1) Contains a permanently installed duct must originate in the lower third gasoline engine; of the compartment. (2) Has openings between it and a (c) Each supply opening or supply compartment that requires ventilation, duct and each exhaust opening or ex- where the aggregate area of those haust duct in a compartment must be openings exceeds 2 percent of the area above the normal accumulation of between the compartments, except as bilge water. provided in paragraph (c) of this sec- (d) Except as provided in paragraph tion; (e) of this section, supply openings or (3) Contains a permanently installed supply ducts and exhaust openings or fuel tank and an electrical component exhaust ducts must each have a min- that is not ignition protected in ac- imum aggregate internal cross-sec- cordance with § 183.410(a); tional area calculated as follows: (4) Contains a fuel tank that vents A = 5 ln (V/5); into that compartment; or (5) Contains a non-metallic fuel tank: where: (i) With an aggregate permeability (1) A is the minimum aggregate in- rate exceeding 1.2 grams of fuel loss in ternal cross-sectional area of the open- 24 hours per cubic foot of net compart- ings or ducts in square inches; ment volume, or (2) V is the net compartment volume (ii) If the net compartment volume is in cubic feet, including the net volume less than one cubic foot, having a per- of other compartments connected by

1107

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01117 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR § 183.701 33 CFR Ch. I (7–1–20 Edition)

openings that exceed 2 percent of the lieves to be purchasing any such boat area between the compartments; and or associated equipment for purposes (3) ln (V/5) is the natural logarithm of other than resale. the quantity (V/5). (e) The minimum internal cross-sec- § 183.710 Start-in-gear protection re- tional area of each supply opening or quired. duct and exhaust opening or duct must (a) Any outboard motor which is ca- exceed 3.0 square inches. pable of developing a static thrust of (f) The minimum internal cross-sec- 115 pounds or more at any motor oper- tional area of terminal fittings for ating speed with any propeller or jet flexible ventilation ducts installed to attachment recommended for or meet the requirements of paragraph (d) shipped with the motor by the manu- of this section must not be less than 80 facturer, must be equipped with a de- percent of the required internal cross- vice to prevent the motor being started sectional area of the flexible ventila- when controls are set so as to attain tion duct. that thrust level, as follows: [CGD 76–082, 44 FR 73027, Dec. 17, 1979; 45 FR (1) Outboard motors designed for 7544, Feb. 4, 1980] local starting must have a built-in start-in-gear protection device. Subpart L—Start-in-Gear (2) Outboard motors designed for remote starting must have either a built- Protection in start-in-gear protection device or be installed with remote starting controls SOURCE: CGD 79–137, 46 FR 3515, Jan. 15, containing this device. An outboard 1981, unless otherwise noted. motor designed for remote starting that does not have a built-in start-in- § 183.701 Applicability. gear protection device must, at the This subpart applies to outboard mo- time of sale, have a tag or label at- tors and starting controls, and to man- tached at the location of the control ufacturers, distributors or dealers in- connection, containing the following stalling such equipment. information: ‘‘Starting controls in- [USCG–1999–5832, 64 FR 34716, June 29, 1999] stalled with this motor must comply with USCG requirements for start-in- § 183.705 Definitions. gear protection in 33 CFR Part 183, For the purposes of this subpart: Subpart L.’’ The letters and numbers (a) Outboard motor means a self-con- on the tag or label must be at least 1⁄8 tained propulsion system of any horse- inch high. power rating designed to be installed (b) Starting controls must have a tag on, and removable from the transom of or label with the following information a boat. to indicate whether or not they have (b) Static thrust means the forward or been equipped with a start-in-gear pro- backward thrust developed by an out- tection device: ‘‘This control will (or board motor and associated propulsion will not) provide start-in-gear protec- unit while stationary. tion meeting USCG requirements of 33 (c) Starting control means the motor CFR Part 183, Subpart L.’’ The letters throttle, shift and starting control and numbers on the tag or label must mechanisms located at a position re- be at least 1⁄8 inch high. mote from the outboard motor. (c) Any manufacturer, distributor or (d) Local starting means operating a dealer installing an outboard motor mechanical or electrical starting de- displaying the label described in para- vice built into the outboard motor. graph (a)(2) of this section must prop- (e) Distributor means any person en- erly match it with a compatible start- gaged in the sale and distribution of ing control that contains a start-in- boats or associated equipment for the gear protection device. purpose of resale. (f) Dealer means any person who is § 183.715 Exception. engaged in the sale and distribution of Outboard motors designed to be boats or associated equipment to pur- equipped for remote starting, but chasers who the seller in good faith be- which also have a provision for local

1108

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01118 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR Coast Guard, DHS Pt. 187

starting in emergencies, need not com- (1) Meet the technical standards of ply with § 183.710 for their local start- the applicable Navigation Rules; ing system. However, the following in- (2) Be certified by a laboratory listed formation must be displayed on the by the Coast Guard to the standards of motor: ‘‘Warning—Ensure shift control ABYC A–16 (incorporated by reference, is in neutral before starting motor’’. see § 183.5) or equivalent, although This information must be clearly visi- portable battery-powered lights need ble to a person using the emergency only meet the requirements of the starting device. standard applicable to them; and (3) Bear a permanent and indelible Subpart M—Navigation Lights label that is visible without removing or disassembling the light and that states the following: SOURCE: USCG–1999–6580, 66 FR 55091, Nov. (i) ‘‘USCG Approval 33 CFR 183.810.’’ 1, 2001, unless otherwise noted. (ii) ‘‘MEETSlll.’’ (Insert the iden- § 183.801 Applicability. tification name or number of the standard under paragraph (a)(2) of this This subpart applies to recreational section, to which the laboratory type- vessel manufacturers, distributors, and tested.) dealers installing such equipment in (iii) ‘‘TESTED BYlll.’’ (Insert the new recreational vessels constructed name or registered certification-mark after November 1, 2002. of the laboratory listed by the Coast Guard that tested the fixture to the § 183.803 Definitions. standard under paragraph (a)(2) of this As used in this subpart: section.) Dealer means any person who is en- (iv) Name of manufacturer. gaged in the sale and distribution of (v) Number of model. recreational vessels to purchasers who (vi) Visibility of the light in nautical the seller in good faith believes to be miles. purchasing any such recreational ves- (vii) Date on which the light was sel for purposes other than resale. type-tested. Distributor means any person engaged (viii) Identification and specifica- in the sale and distribution of rec- tions of the bulb used in the compli- reational vessels for the purpose of re- ance test. sale. (b) If a light is too small to attach Manufacturer means any person en- the required label— gaged in: (1) Place the information from the (1) The manufacture, construction, or label in or on the package that con- assembly of recreational vessels, or tains the light; and (2) Mark each light ‘‘USCG’’ followed (2) The importation of recreational by the certified range of visibility in vessels into the United States for sub- nautical miles (nm), for example, sequent sale. ‘‘USCG 2nm’’. Once installed, this Navigation lights are those lights pre- mark must be visible without removing scribed by the Navigation Rules the light. (COLREGS and their associated An- nexes and Inland Navigation Rules (33 CFR subchapter E) to indicate a ves- Subpart N [Reserved] sel’s presence, type, operation, and rel- ative heading. PARTS 184–186 [RESERVED] [USCG–1999–6580, 66 FR 55091, Nov. 1, 2001, as amended by USCG–2015–0433, 80 FR 44287, PART 187—VESSEL IDENTIFICATION July 27, 2015] SYSTEM

§ 183.810 Navigation light certification Subpart A—General requirements. Sec. (a) Except as provided by paragraph 187.1 Which States are affected by this part? (b) of this section, each navigation 187.3 What vessels are affected by this part? light must— 187.5 What are the purposes of this part?

1109

VerDate Sep<11>2014 12:40 May 11, 2021 Jkt 250138 PO 00000 Frm 01119 Fmt 8010 Sfmt 8010 Y:\SGML\250138.XXX 250138 Spaschal on DSKJM0X7X2PROD with CFR