Federal Motor Carrier Safety Administration, DOT Ch. III, Subch

Federal Motor Carrier Safety Administration, DOT Ch. III, Subch. B, App. G

(b) All other municipalities and unincor- the corporate limits of the base munici- porated areas within 5 miles of the intersec- pality, tion of U.S. Highway 27 (Nicholasville Road) (3) When the base municipality has a popu- with the corporate boundary line between lation of 25,000 but less than 100,000, all unin- Jessamine County, Ky., and Lexington-Fay- corporated areas within 4 miles of its cor- ette Urban County, Ky. porate limits and all of any other munici- pality any part of which is within 4 miles of Sec. 43 Definitions. the corporate limits of the base munici- For the purposes of this part, the following pality, and (4) When the base municipality has a popu- terms are defined: lation of 100,000 or more, all unincorporated (a) ‘‘Municipality’’ means any city, town, areas within 5 miles of its corporate limits village, or borough which has been created and all of any other municipality any part of by special legislative act or which has been, which is within 5 miles of the corporate lim- otherwise, individually incorporated or char- its of the base municipality, and tered pursuant to general State laws, or (d) All municipalities wholly surrounded, which is recognized as such, under the Con- or so surrounded except for a water bound- stitution or by the laws of the State in which ary, by the base municipality, by any mu- located, and which has a local government. nicipality contiguous thereto, or by any mu- It does not include a town of the township or nicipality adjacent thereto which is included New England type. in the commercial zone of such base munici- (b) ‘‘Contiguous municipalities’’ means pality under the provisions of paragraph (c) municipalities, as defined in paragraph (a) of of this section. this section, which have at some point a common municipal or corporate boundary. NOTE: Except: Municipalities the commer- (c) ‘‘Unincorporated area’’ means any area cial zones of which have been or are here- not within the corporate or municipal after individually or specially determined. boundaries of any municipality as defined in paragraph (a) of this section. Sec. 45 Controlling distances and population data. Sec. 44 Commercial zones determined generally, with exceptions. In the application of § 372.241: (a) Air-line distances or mileages about The commercial zone of each municipality corporate limits of municipalities shall be in the United States, with the exceptions in- used. dicated in the note at the end of this section, (b) The population of any municipality within which the transportation of pas- shall be deemed to be the highest figure sengers or property, in interstate or foreign shown for that municipality in any decennial commerce, when not under a common con- census since (and including) the 1940 decen- trol, management, or arrangement for a con- nial census. tinuous carriage or shipment to or from a [53 FR 18058, May 19, 1988, as amended at 62 point without such zone, is exempt from all FR 49942, Sept. 24, 1997] provisions of Part II, Interstate Commerce Act, except the provisions of section 204 rel- APPENDIX G TO SUBCHAPTER B OF CHAP- ative to the qualifications and maximum hours of service of employees and safety of TER III—MINIMUM PERIODIC INSPEC- operation or standards of equipment shall be TION STANDARDS deemed to consist of: A vehicle does not pass an inspection if it (a) The municipality itself, hereinafter has one of the following defects or defi- called the base municipality; ciencies: (b) All municipalities which are contiguous 1. Brake System. to the base municipality; a. Service brakes.—(1) Absence of braking (c) All other municipalities and all unin- action on any axle required to have brakes corporated area within the United States upon application of the service brakes (such which are adjacent to the base municipality as missing brakes or brake shoe(s) failing to as follows: move upon application of a wedge, S-cam, (1) When the base municipality has a popu- cam, or disc brake). lation less than 2,500 all unincorporated (2) Missing or broken mechanical compo- areas within two miles of its corporate lim- nents including: shoes, lining, pads, springs, its and all of any other municipality any anchor pins, spiders, cam rollers, push-rods, part of which is within two miles of the cor- and air chamber mounting bolts. porate limits of the base municipality, (3) Loose brake components including air (2) When the base municipality has a popu- chambers, spiders, and cam shaft support lation of 2,500 but less than 25,000, all unin- brackets. corporated areas within 3 miles of its cor- (4) Audible air leak at brake chamber (Ex- porate limits and all of any other munici- ample-ruptured diaphragm, loose chamber pality any part of which is within 3 miles of clamp, etc.).

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(5) Readjustment limits. The maximum brakes, and less than 1⁄8 inch for air disc stroke at which brakes should be readjusted brakes. is given below. Any brake 1⁄4″ or more past (d) Steering axles: Lining with a thickness the readjustment limit or any two brakes less than 1⁄4 inch at the shoe center for drum 1 less than 1⁄4″ beyond the readjustment limit brakes, less than ⁄8 inch for air disc brakes shall be cause for rejection. Stroke shall be and 1⁄16 inch or less for hydraulic disc and measured with engine off and reservoir pres- electric brakes. sure of 80 to 90 psi with brakes fully applied. (7) Missing brake on any axle required to have brakes. BOLT TYPE BRAKE CHAMBER DATA (8) Mismatch across any power unit steer- ing axle of: Maximum (a) Air chamber sizes. Effective stroke at (b) Slack adjuster length. Type Outside which area (sq. dia. (in.) brakes b. Parking Brake System. No brakes on the in.) should be vehicle or combination are applied upon ac- readjusted tuation of the parking brake control, includ-

15 3 ing driveline hand controlled parking A ...... 12 6 ⁄16 1⁄8 B ...... 24 93⁄16 13⁄4 brakes. C ...... 16 81⁄16 13⁄4 c. Brake Drums or Rotors. D ...... 6 51⁄4 11⁄4 (1) With any external crack or cracks that E ...... 9 63⁄16 13⁄8 open upon brake application (do not confuse 1 F ...... 36 11 2 ⁄4 short hairline heat check cracks with flex- G ...... 30 97⁄8 2 ural cracks). (2) Any portion of the drum or rotor miss- ROTOCHAMBER DATA ing or in danger of falling away. d. Brake Hose. Maximum (1) Hose with any damage extending stroke at Effective through the outer reinforcement ply. (Rub- Type area (sq. Outside which in.) dia. (in.) brakes ber impregnated fabric cover is not a rein- should be forcement ply). (Thermoplastic nylon may readjusted have braid reinforcement or color difference

9 ...... 9 49⁄32 11⁄2 between cover and inner tube. Exposure of 12 ...... 12 413⁄16 11⁄2 second color is cause for rejection. 16 ...... 16 513⁄32 2 (2) Bulge or swelling when air pressure is 20 ...... 20 515⁄16 2 applied. 13 24 ...... 24 6 ⁄32 2 (3) Any audible leaks. 30 ...... 30 71⁄16 21⁄4 (4) Two hoses improperly joined (such as a 36 ...... 36 75⁄8 23⁄4 50 ...... 50 87⁄8 3 splice made by sliding the hose ends over a piece of tubing and clamping the hose to the tube). CLAMP TYPE BRAKE CHAMBER DATA (5) Air hose cracked, broken or crimped. e. Brake Tubing. Maximum stroke at (1) Any audible leak. Effective (2) Tubing cracked, damaged by heat, bro- Type area (sq. Outside which dia. (in.) brakes ken or crimped. in.) should be readjusted f. Low Pressure Warning Device missing, in- operative, or does not operate at 55 psi and 6 ...... 6 41⁄2 11⁄4 below, or 1⁄2 the governor cut-out pressure, 9 ...... 9 51⁄4 13⁄8 whichever is less. 12 ...... 12 511⁄16 13⁄8 g. Tractor Protection Valve. Inoperable or 3 3 16 ...... 16 6 ⁄8 1⁄4 missing tractor protection valve(s) on power 20 ...... 20 625⁄32 13⁄4 24 ...... 24 77⁄32 1 13⁄4 unit. 30 ...... 30 83⁄32 2 h. Air Compressor. 36 ...... 36 9 21⁄4 (1) Compressor drive belts in condition of impending or probable failure. 1 (2″ for long stroke design). (2) Loose compressor mounting bolts. Wedge Brake Data—Movement of the scribe (3) Cracked, broken or loose pulley. mark on the lining shall not exceed 1⁄16 inch. (4) Cracked or broken mounting brackets, (6) Brake linings or pads. braces or adapters. (a) Lining or pad is not firmly attached to i. Electric Brakes. the shoe; (1) Absence of braking action on any wheel (b) Saturated with oil, grease, or brake required to have brakes. fluid; or (2) Missing or inoperable breakaway brak- (c) Non-steering axles: Lining with a thick- ing device. ness less than 1⁄4 inch at the shoe center for j. Hydraulic Brakes. (Including Power Assist air drum brakes, 1⁄16 inch or less at the shoe Over Hydraulic and Engine Drive Hydraulic center for hydraulic and electric drum Booster).

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(1) Master cylinder less than 1⁄4 full. b. Pintle Hooks. (2) No pedal reserve with engine running (1) Mounting to frame. except by pumping pedal. (a) Any missing or ineffective fasteners (a (3) Power assist unit fails to operate. fastener is not considered missing if there is (4) Seeping or swelling brake hose(s) under an empty hole in the device but no cor- application of pressure. responding hole in the frame or vice versa). (5) Missing or inoperative check valve. (b) Mounting surface cracks extending (6) Has any visually observed leaking hy- from point of attachment (e.g., cracks in the draulic fluid in the brake system. frame at mounting bolt holes). (7) Has hydraulic hose(s) abraded (chafed) (c) Loose mounting. through outer cover-to-fabric layer. (d) Frame cross member providing pintle (8) Fluid lines or connections leaking, re- hook attachment cracked. stricted, crimped, cracked or broken. (2) Integrity. (9) Brake failure or low fluid warning light (a) Cracks anywhere in pintle hook assem- on and/or inoperative. bly. k. Vacuum Systems. Any vacuum system (b) Any welded repairs to the pintle hook. which: (c) Any part of the horn section reduced by (1) Has insufficient vacuum reserve to per- more than 20%. mit one full brake application after engine is (d) Latch insecure. shut off. c. Drawbar/Towbar Eye. (2) Has vacuum hose(s) or line(s) restricted, (1) Mounting. abraded (chafed) through outer cover to cord (a) Any cracks in attachment welds. 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. (c) More than 3⁄8 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. (b) Improper repairs including welding, (d) Any slider component cracked in parent wire, small bolts, rope and tape. metal or weld. (4) Cable. (4) Lower coupler. (a) Kinked or broken cable strands. (a) Horizontal movement between the (b) Improper clamps or clamping. upper and lower fifth wheel halves exceeds 1⁄2 f. Saddle-Mounts. inch. (1) Method of attachment. (b) Operating handle not in closed or (a) Any missing or ineffective fasteners. locked position. (b) Loose mountings. (c) Kingpin not properly engaged. (c) Any cracks or breaks in a stress or load (d) Separation between upper and lower bearing member. coupler allowing light to show through from (d) Horizontal movement between upper side to side. and lower saddle-mount halves exceeds 1⁄4 (e) Cracks in the fifth wheel plate. inch. Exceptions: Cracks in fifth wheel approach 3. Exhaust System. ramps and casting shrinkage cracks in the a. Any exhaust system determined to be ribs of the body of a cast fifth wheel. leaking at a point forward of or directly (f) Locking mechanism parts missing, bro- below the driver/sleeper compartment. ken, or deformed to the extent the kingpin is b. A bus exhaust system leaking or dis- not securely held. charging to the atmosphere:

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(1) Gasoline powered—excess of 6 inches (2) Any motion, other than rotational, be- forward of the rearmost part of the bus. tween any linkage member and its attach- (2) Other than gasoline powered—in excess ment point of more than 1⁄4 inch. of 15 inches forward of the rearmost part of h. Tie Rods and Drag Links. the bus. (1) Loose clamp(s) or clamp bolt(s) on tie (3) Other than gasoline powered—forward rods or drag links. of a door or window designed to be opened. (2) Any looseness in any threaded joint. (exception: Emergency exits). i. Nuts. Nut(s) loose or missing on tie rods, c. No part of the exhaust system of any pitman arm, drag link, steering arm or tie motor vehicle shall be so located as would be rod arm. likely to result in burning, charring, or dam- j. Steering System. Any modification or aging the electrical wiring, the fuel supply, other condition that interferes with free or any combustible part of the motor vehi- movement of any steering component. cle. 8. Suspension. 4. Fuel System. a. Any U-bolt(s), spring hanger(s), or other a. A fuel system with a visable leak at any axle positioning part(s) cracked, broken, point. loose or missing resulting in shifting of an b. A fuel tank filler cap missing. axle from its normal position. (After a turn, c. A fuel tank not securely attached to the lateral axle displacement is normal with motor vehicle by reason of loose, broken or some suspensions. Forward or rearward oper- missing mounting bolts or brackets (some ation in a straight line will cause the axle to fuel tanks use springs or rubber bushings to return to alignment). permit movement). b. Spring Assembly. 5. Lighting Devices. All lighting devices and (1) Any leaves in a leaf spring assembly reflectors required by Section 393 shall be op- broken or missing. erable. (2) Any broken main leaf in a leaf spring 6. Safe Loading. assembly. (Includes assembly with more a. Part(s) of vehicle or condition of loading than one main spring). such that the spare tire or any part of the (3) Coil spring broken. load or dunnage can fall onto the roadway. (4) Rubber spring missing. b. Protection Against Shifting Cargo—Any (5) One or more leaves displaced in a man- vehicle without a front-end structure or ner that could result in contact with a tire, equivalent device as required. rim, brake drum or frame. 7. Steering Mechanism. (6) Broken torsion bar spring in a torsion a. Steering Wheel Free Play (on vehicles bar suspension. equipped with power steering the engine must be (7) Deflated air suspension, i.e., system running). failure, leak, etc. c. Torque, Radius or Tracking Components. Manual Power Any part of a torque, radius or tracking Steering wheel diameter steering steering component assembly or any part used for at- system system taching the same to the vehicle frame or

16″ ...... 2″ 41⁄2″ axle that is cracked, loose, broken or miss- 18″ ...... 21⁄4″ 43⁄4″ ing. (Does not apply to loose bushings in 20″ ...... 21⁄2″ 51⁄4″ torque or track rods.) ″ 3 ″ 3 ″ 22 ...... 2 ⁄4 5 ⁄4 9. Frame. a. Frame Members. b. Steering Column. (1) Any cracked, broken, loose, or sagging (1) Any absence or looseness of U-bolt(s) or frame member. positioning part(s). (2) Any loose or missing fasteners includ- (2) Worn, faulty or obviously repair welded ing fasteners attaching functional compo- universal joint(s). nent such as engine, transmission, steering (3) Steering wheel not properly secured. gear, suspension, body parts, and fifth wheel. c. Front Axle Beam and All Steering Compo- b. Tire and Wheel Clearance. Any condition, nents Other Than Steering Column. including loading, that causes the body or (1) Any crack(s). frame to be in contact with a tire or any (2) Any obvious welded repair(s). part of the wheel assemblies. d. Steering Gear Box. 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. Pitman Arm. Any looseness of the pitman 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.

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(3) Has any tread or sidewall separation. (4) Any welded repair other than disc to (4) Has a cut where the ply or belt material rim attachment on steel disc wheel(s) is exposed. mounted on the steering axle. (5) Labeled ‘‘Not for Highway Use’’ or dis- 12. Windshield Glazing. (Not including a 2 playing other marking which would exclude inch border at the top, a 1 inch border at use on steering axle. each side and the area below the topmost (6) A tube-type radial tire without radial portion of the steering wheel.) Any crack, tube stem markings. These markings include discoloration or vision reducing matter ex- a red band around the tube stem, the word cept: (1) coloring or tinting applied at time ‘‘radial’’ embossed in metal stems, or the of manufacture; (2) any crack not over 1⁄4 word ‘‘radial’’ molded in rubber stems. inch wide, if not intersected by any other (7) Mixing bias and radial tires on the same crack; (3) any damaged area not more than 3⁄4 axle. inch in diameter, if not closer than 3 inches (8) Tire flap protrudes through valve slot to any other such damaged area; (4) labels, in rim and touches stem. stickers, decalcomania, etc. (see 393.60 for (9) Regrooved tire except motor vehicles exceptions). used solely in urban or suburban service (see 13. Windshield Wipers. Any power unit that exception in 393.75(e). has an inoperative wiper, or missing or dam- (10) Boot, blowout patch or other ply re- aged parts that render it ineffective. pair. COMPARISON OF APPENDIX G, AND THE NEW (11) Weight carried exceeds tire load limit. NORTH AMERICAN UNIFORM DRIVER-VEHICLE This includes overloaded tire resulting from INSPECTION PROCEDURE (NORTH AMERICAN low air pressure. COMMERCIAL VEHICLE CRITICAL SAFETY IN- (12) Tire is flat or has noticeable (e.g., can SPECTION ITEMS AND OUT-OF-SERVICE CRI- be heard or felt) leak. TERIA) (13) Any bus equipped with recapped or 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, CVSA’s North American Commercial Vehicle b. All tires other than those found on the Critical Safety Inspection Items and Out-Of- steering axle of a power unit: Service Criteria and Appendix G of sub- (1) Weight carried exceeds tire load limit. chapter B are similar documents and follow This includes overloaded tire resulting from the same inspection procedures. The same low air pressure. items are required to be inspected by each (2) Tire is flat or has noticeable (e.g., can document. FMCSA’s and CVSA’s out-of-serv- be heard or felt) leak. 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 d. Welds. inspected are in proper adjustment, are not (1) Any cracks in welds attaching disc defective and function properly prior to the wheel disc to rim. vehicle being placed in service. (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 wheel(s) on a steering axle. 1. Brake System.

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The Appendix G criteria rejects vehicles leaves in a leaf spring assembly. The out-of- with any defective brakes, any air leaks, etc. service criteria allows up to 25% broken or The out-of-service criteria allows 20% defec- missing leaves before being placed out-of- tive brakes on non-steering axles and a cer- service. tain latitude on air leaks before placing a ve- 9. Frame hicle out-of-service. The out-of-service criteria allows a certain 2. Coupling Devices. latitude in frame cracks before placing a ve- Appendix G rejects vehicles with any fifth hicle out-of-service. Appendix G follows the wheel mounting fastener missing or ineffec- new requirements of 393.201 which does not tive. The out-of-service criteria allows up to allow any frame cracks. 20% missing or ineffective fasteners on frame 10. Tires mountings and pivot bracket mountings and Appendix G follows the requirements of 25% on slider latching fasteners. The out-of- 393.75 which requires a tire tread depth of 4⁄32 service criteria also allows some latitude on inch on power unit steering axles and 2⁄32 cracked welds. 3. Exhaust System. inch on all other axles. The out-of-service 2 Appendix G follows Section 393.83 ver- criteria only requires ⁄32 inch tire tread 1 batim. The CVSA out-of-service criteria al- depth on power unit steering axles and ⁄32 lows vehicles to exhaust forward of the di- inch on all other axles. mensions given in Section 393.83 as long as 11. Wheel and Rims the exhaust does not leak or exhaust under The out-of-service criteria allows a certain the chassis. amount latitude for wheel and rim cracks 4. Fuel System. and missing or defective fasteners. Appendix Same for Appendix G and the out-of-serv- G meets the requirements of the new 393.205 ice criteria. which does not allow defective wheels and 5. Lighting Devices. rims non-effective nuts and bolts. Appendix G requires all lighting devices re- 12. Windshield Glazing quired by Section 393 to be operative at all The out-of-service criteria places in a re- times. The out-of-service criteria only re- stricted service condition any vehicle that quires one stop light and functioning turn has a crack or discoloration in the wind- signals on the rear most vehicle of a com- shield area lying within the sweep of the bination vehicle to be operative at all times. wiper on the drivers side and does not ad- In addition one operative head lamp and tail dress the remaining area of the windshield. lamp are required during the hours of dark- Appendix G addresses requirements for the ness. whole windshield as specified in 393.60. 6. Safe Loading. 13. Windshield Wipers Same for both Appendix G and the out-of- Appendix G requires windshield wipers to service criteria. be operative at all times. The out-of-service 7. Steering Mechanism criteria only requires that the windshield Steering lash requirements of Appendix G wiper on the driver’s side to be inspected follows the new requirements of § 393.209. during inclement weather. 8. Suspension Appendix G follows the new requirements [53 FR 49411, Dec. 7, 1988; 53 FR 49968, Dec. 12, of § 393.207 which does not allow any broken 1988]

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