Federal Motor Carrier Safety Administration, DOT Ch. III, Subch. B, App. G
Sec. 44 Commercial zones determined generally, Sec. 45 Controlling distances and population with exceptions. data. The commercial zone of each municipality In the application of § 372.241: in the United States, with the exceptions in- (a) Air-line distances or mileages about dicated in the note at the end of this section, corporate limits of municipalities shall be within which the transportation of pas- used. sengers or property, in interstate or foreign (b) The population of any municipality commerce, when not under a common con- shall be deemed to be the highest figure trol, management, or arrangement for a con- shown for that municipality in any decennial tinuous carriage or shipment to or from a census since (and including) the 1940 decen- point without such zone, is exempt from all nial census. provisions of Part II, Interstate Commerce Act, except the provisions of section 204 rel- [53 FR 18058, May 19, 1988, as amended at 62 ative to the qualifications and maximum FR 49942, Sept. 24, 1997] hours of service of employees and safety of operation or standards of equipment shall be APPENDIX G TO SUBCHAPTER B—MIN- deemed to consist of: IMUM PERIODIC INSPECTION STAND- (a) The municipality itself, hereinafter ARDS called the base municipality; A vehicle does not pass an inspection if it (b) All municipalities which are contiguous has one of the following defects or defi- to the base municipality; ciencies: (c) All other municipalities and all unin- 1. Brake System. corporated area within the United States a. Service brakes.—(1) Absence of braking which are adjacent to the base municipality action on any axle required to have brakes as follows: upon application of the service brakes (such (1) When the base municipality has a popu- as missing brakes or brake shoe(s) failing to lation less than 2,500 all unincorporated move upon application of a wedge, S-cam, areas within two miles of its corporate lim- cam, or disc brake). its and all of any other municipality any (2) Missing or broken mechanical compo- part of which is within two miles of the cor- nents including: shoes, lining, pads, springs, porate limits of the base municipality, anchor pins, spiders, cam rollers, push-rods, (2) When the base municipality has a popu- and air chamber mounting bolts. lation of 2,500 but less than 25,000, all unin- (3) Loose brake components including air corporated areas within 3 miles of its cor- chambers, spiders, and cam shaft support porate limits and all of any other munici- brackets. pality any part of which is within 3 miles of the corporate limits of the base munici- (4) Audible air leak at brake chamber (Ex- pality, ample-ruptured diaphragm, loose chamber clamp, etc.). (3) When the base municipality has a popu- lation of 25,000 but less than 100,000, all unin- (5) Readjustment limits. The maximum corporated areas within 4 miles of its cor- stroke at which brakes should be readjusted 1 ″ porate limits and all of any other munici- is given below. Any brake ⁄4 or more past pality any part of which is within 4 miles of the readjustment limit or any two brakes 1 ″ the corporate limits of the base munici- less than ⁄4 beyond the readjustment limit pality, and shall be cause for rejection. Stroke shall be measured with engine off and reservoir pres- (4) When the base municipality has a popu- lation of 100,000 or more, all unincorporated sure of 80 to 90 psi with brakes fully applied. areas within 5 miles of its corporate limits and all of any other municipality any part of BOLT TYPE BRAKE CHAMBER DATA which is within 5 miles of the corporate lim- Maximum its of the base municipality, and Effective stroke at (d) All municipalities wholly surrounded, Outside which Type area (sq. dia. (in.) brakes or so surrounded except for a water bound- in.) should be ary, by the base municipality, by any mu- readjusted nicipality contiguous thereto, or by any mu- nicipality adjacent thereto which is included A ...... 12 615⁄16 13⁄8 3 3 in the commercial zone of such base munici- B ...... 24 9 ⁄16 1 ⁄4 1 3 pality under the provisions of paragraph (c) C ...... 16 8 ⁄16 1 ⁄4 D ...... 6 51⁄4 11⁄4 of this section. E ...... 9 63⁄16 13⁄8 NOTE: Except: Municipalities the commer- F ...... 36 11 21⁄4 cial zones of which have been or are here- G ...... 30 97⁄8 2 after individually or specially determined.
1117
VerDate 11
ROTOCHAMBER DATA (2) Any portion of the drum or rotor miss- ing or in danger of falling away. Maximum d. Brake Hose. stroke at (1) Hose with any damage extending Effective Outside which Type area (sq. dia. (in.) brakes through the outer reinforcement ply. (Rub- in.) should be ber impregnated fabric cover is not a rein- readjusted forcement ply). (Thermoplastic nylon may have braid reinforcement or color difference 9 ...... 9 49⁄32 11⁄2 12 ...... 12 413⁄16 11⁄2 between cover and inner tube. Exposure of 16 ...... 16 513⁄32 2 second color is cause for rejection. 20 ...... 20 515⁄16 2 (2) Bulge or swelling when air pressure is 24 ...... 24 613⁄32 2 applied. 30 ...... 30 71⁄16 21⁄4 (3) Any audible leaks. 5 3 36 ...... 36 7 ⁄8 2 ⁄4 (4) Two hoses improperly joined (such as a 50 ...... 50 87⁄8 3 splice made by sliding the hose ends over a piece of tubing and clamping the hose to the CLAMP TYPE BRAKE CHAMBER DATA tube). (5) Air hose cracked, broken or crimped. Maximum e. Brake Tubing. stroke at Effective Outside which (1) Any audible leak. Type area (sq. (2) Tubing cracked, damaged by heat, bro- in.) dia. (in.) brakes should be ken or crimped. readjusted f. Low Pressure Warning Device missing, in-
6 ...... 6 41⁄2 11⁄4 operative, or does not operate at 55 psi and 1 9 ...... 9 51⁄4 13⁄8 below, or ⁄2 the governor cut-out pressure, 12 ...... 12 511⁄16 13⁄8 whichever is less. 16 ...... 16 63⁄8 13⁄4 g. Tractor Protection Valve. Inoperable or 20 ...... 20 625⁄32 13⁄4 missing tractor protection valve(s) on power 7 1 3 24 ...... 24 7 ⁄32 1 ⁄4 unit. 30 ...... 30 83⁄32 2 h. Air Compressor. 36 ...... 36 9 21⁄4 (1) Compressor drive belts in condition of 1 (2″ for long stroke design). impending or probable failure. Wedge Brake Data.—Movement of the scribe (2) Loose compressor mounting bolts. mark on the lining shall not exceed 1⁄16 inch. (3) Cracked, broken or loose pulley. (6) Brake linings or pads. (4) Cracked or broken mounting brackets, (a) Lining or pad is not firmly attached to braces or adapters. the shoe; i. Electric Brakes. (b) Saturated with oil, grease, or brake (1) Absence of braking action on any wheel fluid; or required to have brakes. (c) Non-steering axles: Lining with a thick- (2) Missing or inoperable breakaway brak- ness less than 1⁄4 inch at the shoe center for ing device. air drum brakes, 1⁄16 inch or less at the shoe j. Hydraulic Brakes. (Including Power Assist center for hydraulic and electric drum Over Hydraulic and Engine Drive Hydraulic brakes, and less than 1⁄8 inch for air disc Booster). brakes. (1) Master cylinder less than 1⁄4 full. (d) Steering axles: Lining with a thickness (2) No pedal reserve with engine running less than 1⁄4 inch at the shoe center for drum except by pumping pedal. brakes, less than 1⁄8 inch for air disc brakes (3) Power assist unit fails to operate. and 1⁄16 inch or less for hydraulic disc and (4) Seeping or swelling brake hose(s) under electric brakes. application of pressure. (7) Missing brake on any axle required to (5) Missing or inoperative check valve. have brakes. (6) Has any visually observed leaking hy- (8) Mismatch across any power unit steer- draulic fluid in the brake system. ing axle of: (7) Has hydraulic hose(s) abraded (chafed) (a) Air chamber sizes. through outer cover-to-fabric layer. (b) Slack adjuster length. (8) Fluid lines or connections leaking, re- b. Parking Brake System. No brakes on the stricted, crimped, cracked or broken. vehicle or combination are applied upon ac- (9) Brake failure or low fluid warning light tuation of the parking brake control, includ- on and/or inoperative. ing driveline hand controlled parking k. Vacuum Systems. Any vacuum system brakes. which: c. Brake Drums or Rotors. (1) Has insufficient vacuum reserve to per- (1) With any external crack or cracks that mit one full brake application after engine is open upon brake application (do not confuse shut off. short hairline heat check cracks with flex- (2) Has vacuum hose(s) or line(s) restricted, ural cracks). abraded (chafed) through outer cover to cord
1118
VerDate 11
ply, crimped, cracked, broken or has collapse (b) Any missing or ineffective fasteners. of vacuum hose(s) when vacuum is applied. (2) Integrity. (3) Lacks an operative low-vacuum warn- (a) Any cracks. ing device as required. (b) Any part of the eye reduced by more 2. Coupling devices. than 20%. a. Fifth Wheels. d. Drawbar/Towbar Tongue. (1) Mounting to frame. (1) Slider (power or manual). (a) Any fasteners missing or ineffective. (a) Ineffective latching mechanism (b) Any movement between mounting com- (b) Missing or ineffective stop. ponents. (c) Movement of more than 1⁄4 inch between (c) Any mounting angle iron cracked or slider and housing. broken. (d) Any leaking, air or hydraulic cylinders, (2) Mounting plates and pivot brackets. hoses, or chambers (other than slight oil (a) Any fasteners missing or ineffective. weeping normal with hydraulic seals). (b) Any welds or parent metal cracked. (2) Integrity. 3 (c) More than ⁄8 inch horizontal movement (a) Any cracks. between pivot bracket pin and bracket. (b) Movement of 1⁄4 inch between subframe (d) Pivot bracket pin missing or not se- and drawbar at point of attachment. cured. e. Safety Devices. (3) Sliders. (1) Safety devices missing. (a) Any latching fasteners missing or inef- (2) Unattached or incapable of secure at- fective. tachment. (b) Any fore or aft stop missing or not se- (3) Chains and hooks. curely attached. (a) Worn to the extent of a measurable re- (c) Movement more than 3⁄8 inch between duction in link cross section. slider bracket and slider base. (d) Any slider component cracked in parent (b) Improper repairs including welding, metal or weld. wire, small bolts, rope and tape. (4) Lower coupler. (4) Cable. (a) Horizontal movement between the (a) Kinked or broken cable strands. (b) Improper clamps or clamping. upper and lower fifth wheel halves exceeds 1⁄2 inch. f. Saddle-Mounts. (b) Operating handle not in closed or (1) Method of attachment. locked position. (a) Any missing or ineffective fasteners. (c) Kingpin not properly engaged. (b) Loose mountings. (d) Separation between upper and lower (c) Any cracks or breaks in a stress or load coupler allowing light to show through from bearing member. side to side. (d) Horizontal movement between upper (e) Cracks in the fifth wheel plate. and lower saddle-mount halves exceeds 1⁄4 Exceptions: Cracks in fifth wheel approach inch. ramps and casting shrinkage cracks in the 3. Exhaust System. ribs of the body of a cast fifth wheel. a. Any exhaust system determined to be (f) Locking mechanism parts missing, bro- leaking at a point forward of or directly ken, or deformed to the extent the kingpin is below the driver/sleeper compartment. not securely held. b. A bus exhaust system leaking or dis- b. Pintle Hooks. charging to the atmosphere: (1) Mounting to frame. (1) Gasoline powered—excess of 6 inches (a) Any missing or ineffective fasteners (a forward of the rearmost part of the bus. fastener is not considered missing if there is (2) Other than gasoline powered—in excess an empty hole in the device but no cor- of 15 inches forward of the rearmost part of responding hole in the frame or vice versa). the bus. (b) Mounting surface cracks extending (3) Other than gasoline powered—forward from point of attachment (e.g., cracks in the of a door or window designed to be opened. frame at mounting bolt holes). (exception: Emergency exits). (c) Loose mounting. c. No part of the exhaust system of any (d) Frame cross member providing pintle motor vehicle shall be so located as would be hook attachment cracked. likely to result in burning, charring, or dam- (2) Integrity. aging the electrical wiring, the fuel supply, (a) Cracks anywhere in pintle hook assem- or any combustible part of the motor vehi- bly. cle. (b) Any welded repairs to the pintle hook. 4. Fuel System. (c) Any part of the horn section reduced by a. A fuel system with a visable leak at any more than 20%. point. (d) Latch insecure. b. A fuel tank filler cap missing. c. Drawbar/Towbar Eye. c. A fuel tank not securely attached to the (1) Mounting. motor vehicle by reason of loose, broken or (a) Any cracks in attachment welds. missing mounting bolts or brackets (some
1119
VerDate 11
fuel tanks use springs or rubber bushings to ation in a straight line will cause the axle to permit movement). return to alignment). 5. Lighting Devices. All lighting devices and b. Spring Assembly. reflectors required by Section 393 shall be op- (1) Any leaves in a leaf spring assembly erable. broken or missing. 6. Safe Loading. (2) Any broken main leaf in a leaf spring a. Part(s) of vehicle or condition of loading assembly. (Includes assembly with more such that the spare tire or any part of the than one main spring). load or dunnage can fall onto the roadway. (3) Coil spring broken. b. Protection Against Shifting Cargo—Any (4) Rubber spring missing. vehicle without a front-end structure or (5) One or more leaves displaced in a man- equivalent device as required. ner that could result in contact with a tire, 7. Steering Mechanism. rim, brake drum or frame. a. Steering Wheel Free Play (on vehicles (6) Broken torsion bar spring in a torsion equipped with power steering the engine must be bar suspension. running). (7) Deflated air suspension, i.e., system failure, leak, etc. Manual Power c. Torque, Radius or Tracking Components. Steering wheel diameter steering steering Any part of a torque, radius or tracking system system component assembly or any part used for at- taching the same to the vehicle frame or 16″ ...... 2″ 41⁄2″ 1 3 axle that is cracked, loose, broken or miss- 18″ ...... 2 ⁄4″ 4 ⁄4″ 20″ ...... 21⁄2″ 51⁄4″ ing. (Does not apply to loose bushings in 22″ ...... 23⁄4″ 53⁄4″ torque or track rods.) 9. Frame. b. Steering Column. a. Frame Members. (1) Any absence or looseness of U-bolt(s) or (1) Any cracked, broken, loose, or sagging positioning part(s). frame member. (2) Worn, faulty or obviously repair welded (2) Any loose or missing fasteners includ- universal joint(s). ing fasteners attaching functional compo- (3) Steering wheel not properly secured. nent such as engine, transmission, steering c. Front Axle Beam and All Steering Compo- gear, suspension, body parts, and fifth wheel. nents Other Than Steering Column. b. Tire and Wheel Clearance. Any condition, (1) Any crack(s). including loading, that causes the body or (2) Any obvious welded repair(s). frame to be in contact with a tire or any d. Steering Gear Box. part of the wheel assemblies. c. (1) Adjustable Axle Assemblies (Sliding Sub- (1) Any mounting bolt(s) loose or missing. frames). Adjustable axle assembly with lock- (2) Any crack(s) in gear box or mounting ing pins missing or not engaged. brackets. 10. Tires. e. Any looseness of the pitman Pitman Arm. a. Any tire on any steering axle of a power arm on the steering gear output shaft. unit. f. Power Steering. Auxiliary power assist (1) With less than 4⁄32 inch tread when cylinder loose. measured at any point on a major tread g. Ball and Socket Joints. groove. (1) Any movement under steering load of a (2) Has body ply or belt material exposed stud nut. through the tread or sidewall. (2) Any motion, other than rotational, be- (3) Has any tread or sidewall separation. tween any linkage member and its attach- (4) Has a cut where the ply or belt material ment point of more than 1⁄4 inch. is exposed. h. Tie Rods and Drag Links. (5) Labeled ‘‘Not for Highway Use’’ or dis- (1) Loose clamp(s) or clamp bolt(s) on tie playing other marking which would exclude rods or drag links. use on steering axle. (2) Any looseness in any threaded joint. (6) A tube-type radial tire without radial i. Nuts. Nut(s) loose or missing on tie rods, tube stem markings. These markings include pitman arm, drag link, steering arm or tie a red band around the tube stem, the word rod arm. ‘‘radial’’ embossed in metal stems, or the j. Steering System. Any modification or word ‘‘radial’’ molded in rubber stems. other condition that interferes with free (7) Mixing bias and radial tires on the same movement of any steering component. axle. 8. Suspension. (8) Tire flap protrudes through valve slot a. Any U-bolt(s), spring hanger(s), or other in rim and touches stem. axle positioning part(s) cracked, broken, (9) Regrooved tire except motor vehicles loose or missing resulting in shifting of an used solely in urban or suburban service (see axle from its normal position. (After a turn, exception in 393.75(e). lateral axle displacement is normal with (10) Boot, blowout patch or other ply re- some suspensions. Forward or rearward oper- pair.
1120
VerDate 11
(11) Weight carried exceeds tire load limit. COMPARISON OF APPENDIX G, AND THE NEW This includes overloaded tire resulting from NORTH AMERICAN UNIFORM DRIVER-VEHICLE low air pressure. INSPECTION PROCEDURE (NORTH AMERICAN (12) Tire is flat or has noticeable (e.g., can COMMERCIAL VEHICLE CRITICAL SAFETY IN- be heard or felt) leak. SPECTION ITEMS AND OUT-OF-SERVICE CRI- (13) Any bus equipped with recapped or TERIA) retreaded tire(s). The vehicle portion of the FMCSA’s North (14) So mounted or inflated that it comes American Uniform Driver-Vehicle Inspection in contact with any part of the vehicle. Procedure (NAUD–VIP) requirements, b. All tires other than those found on the CVSA’s North American Commercial Vehicle steering axle of a power unit: Critical Safety Inspection Items and Out-Of- (1) Weight carried exceeds tire load limit. Service Criteria and Appendix G of sub- This includes overloaded tire resulting from chapter B are similar documents and follow low air pressure. the same inspection procedures. The same (2) Tire is flat or has noticeable (e.g., can items are required to be inspected by each be heard or felt) leak. document. FMCSA’s and CVSA’s out-of-serv- ice criteria are intended to be used in ran- (3) Has body ply or belt material exposed dom roadside inspections to identify critical through the tread or sidewall. vehicle inspection items and provide criteria (4) Has any tread or sidewall separation. for placing a vehicle(s) out-of-service. (5) Has a cut where ply or belt material is Avehicle(s) is placed out-of-service only exposed. when by reason of its mechanical condition (6) So mounted or inflated that it comes in or loading it is determined to be so immi- contact with any part of the vehicle. (This nently hazardous as to likely cause an acci- includes a tire that contacts its mate.) dent or breakdown, or when such condi- (7) Is marked ‘‘Not for highway use’’ or tion(s) would likely contribute to loss of con- otherwise marked and having like meaning. trol of the vehicle(s) by the driver. A certain (8) With less than 2⁄32 inch tread when amount of flexibility is given to the inspect- measured at any point on a major tread ing official whether to place the vehicle out- groove. of-service at the inspection site or if it would 11. Wheels and Rims. be less hazardous to allow the vehicle to pro- a. Lock or Side Ring. Bent, broken, cracked, ceed to a repair facility for repair. The dis- improperly seated, sprung or mismatched tance to the repair facility must not exceed ring(s). 25 miles. The roadside type of inspection, b. Wheels and rims. Cracked or broken or however, does not necessarily mean that a has elongated bolt holes. vehicle has to be defect-free in order to con- c. Fasteners (both spoke and disc wheels). tinue in service. Any loose, missing, broken, cracked, In contrast, the Appendix G inspection pro- stripped or otherwise ineffective fasteners. cedure requires that all items required to be inspected are in proper adjustment, are not d. Welds. defective and function properly prior to the (1) Any cracks in welds attaching disc vehicle being placed in service. wheel disc to rim. (2) Any crack in welds attaching tubeless DIFFERENCES BETWEEN THE OUT-OF-SERVICE demountable rim to adapter. CRITERIA & FMCSA’S ANNUAL INSPECTION (3) Any welded repair on aluminum 1. Brake System. wheel(s) on a steering axle. The Appendix G criteria rejects vehicles (4) Any welded repair other than disc to with any defective brakes, any air leaks, etc. rim attachment on steel disc wheel(s) The out-of-service criteria allows 20% defec- mounted on the steering axle. tive brakes on non-steering axles and a cer- 12. Windshield Glazing. (Not including a 2 tain latitude on air leaks before placing a ve- inch border at the top, a 1 inch border at hicle out-of-service. each side and the area below the topmost 2. Coupling Devices. portion of the steering wheel.) Any crack, Appendix G rejects vehicles with any fifth discoloration or vision reducing matter ex- wheel mounting fastener missing or ineffec- cept: (1) coloring or tinting applied at time tive. The out-of-service criteria allows up to of manufacture; (2) any crack not over 1⁄4 20% missing or ineffective fasteners on frame inch wide, if not intersected by any other mountings and pivot bracket mountings and crack; (3) any damaged area not more than 3⁄4 25% on slider latching fasteners. The out-of- inch in diameter, if not closer than 3 inches service criteria also allows some latitude on to any other such damaged area; (4) labels, cracked welds. stickers, decalcomania, etc. (see 393.60 for 3. Exhaust System. exceptions). Appendix G follows Section 393.83 ver- 13. Windshield Wipers. Any power unit that batim. The CVSA out-of-service criteria al- has an inoperative wiper, or missing or dam- lows vehicles to exhaust forward of the di- aged parts that render it ineffective. mensions given in Section 393.83 as long as
1121
VerDate 11
the exhaust does not leak or exhaust under 10. Tires the chassis. Appendix G follows the requirements of 4. Fuel System. 393.75 which requires a tire tread depth of 4⁄32 Same for Appendix G and the out-of-serv- inch on power unit steering axles and 2⁄32 ice criteria. inch on all other axles. The out-of-service 5. Lighting Devices. criteria only requires 2⁄32 inch tire tread Appendix G requires all lighting devices re- depth on power unit steering axles and 1⁄32 quired by Section 393 to be operative at all inch on all other axles. times. The out-of-service criteria only re- 11. Wheel and Rims quires one stop light and functioning turn The out-of-service criteria allows a certain signals on the rear most vehicle of a com- bination vehicle to be operative at all times. amount latitude for wheel and rim cracks In addition one operative head lamp and tail and missing or defective fasteners. Appendix lamp are required during the hours of dark- G meets the requirements of the new 393.205 ness. which does not allow defective wheels and 6. Safe Loading. rims non-effective nuts and bolts. Same for both Appendix G and the out-of- 12. Windshield Glazing service criteria. The out-of-service criteria places in a re- 7. Steering Mechanism stricted service condition any vehicle that Steering lash requirements of Appendix G has a crack or discoloration in the wind- follows the new requirements of § 393.209. shield area lying within the sweep of the 8. Suspension wiper on the drivers side and does not ad- Appendix G follows the new requirements dress the remaining area of the windshield. of § 393.207 which does not allow any broken Appendix G addresses requirements for the leaves in a leaf spring assembly. The out-of- whole windshield as specified in 393.60. service criteria allows up to 25% broken or 13. Windshield Wipers missing leaves before being placed out-of- Appendix G requires windshield wipers to service. be operative at all times. The out-of-service 9. Frame criteria only requires that the windshield The out-of-service criteria allows a certain wiper on the driver’s side to be inspected latitude in frame cracks before placing a ve- during inclement weather. hicle out-of-service. Appendix G follows the new requirements of 393.201 which does not [53 FR 49411, Dec. 7, 1988; 53 FR 49968, Dec. 12, allow any frame cracks. 1988]
1122
VerDate 11