§568.4. Requirements for incomplete vehicle manufacturers. — Inbound Citations

This subpart applies to alterers and manufacturers of motor vehicles built in two or more stages to which one or more standards are applicable. No manufacturer or alterer that produces or alters a total exceeding 10,000 motor vehicles annually shall be eligible for a temporary exemption under this subpart. Any exemption granted under this subpart shall be limited, per manufacturer, to 2,500 vehicles to be sold in the United States in any 12 consecutive month period. Incomplete vehicle manufacturers and intermediate manufacturers that do not intend to certify the vehicles in accordance with 49 CFR 567.5(f) or (g), and instead furnish Incomplete Vehicle Documents to final-stage manufacturers in accordance with 49 CFR 568.4 or 49 CFR 568.5, are not eligible for temporary exemptions under this subpart.

Each intermediate manufacturer of a vehicle manufactured in two or more stages shall furnish to the final-stage manufacturer the document required by 49 CFR 568.4 in the manner specified in that section. If any of the changes in the vehicle made by the intermediate manufacturer affects the validity of the statements in the IVD, that manufacturer shall furnish an addendum to the IVD that contains its name and mailing address and an indication of all changes that should be made in the IVD to reflect changes that it made to the vehicle. The addendum shall contain a certification by the intermediate manufacturer that the statements contained in the addendum are accurate as of the date of manufacture by the intermediate manufacturer and can be used and relied on by any subsequent intermediate manufacturer(s) and the final-stage manufacturer as a basis for certification.

(a) If an incomplete vehicle manufacturer assumes legal responsibility for all duties and liabilities imposed on manufacturers by the National Traffic and Motor Vehicle Safety Act, as amended (49 U.S.C. chapter 301) (hereafter referred to as the Act), with respect to a vehicle as finally manufactured, the requirements of §§ 568.4, 568.5 and 568.6 do not apply to that vehicle. In such a case, the incomplete vehicle manufacturer shall ensure that a label is affixed to the final vehicle in conformity with 49 CFR 567.5(f).

(vi) Has a means to estimate vehicle mass or, if applicable, combination vehicle mass;

(1) (For a motor vehicle) a written or electronic document meeting the requirements of § 568.4 of Part 568 of this chapter.

(2) Incomplete vehicle document or IVD means the document described in 49 CFR 568.4(a) and (b).

Incomplete vehicle manufacturer means a person who manufactures an incomplete vehicle by assembling components none of which, taken separately, constitute an incomplete vehicle.

Intermediate manufacturer means a person, other than the incomplete vehicle manufacturer or the final-stage manufacturer, who performs manufacturing operations on a vehicle manufactured in two or more stages.

Replica motor vehicle means a motor vehicle meeting the definition of replica motor vehicle in 49 CFR part 586.

(8) Each document shall contain a table of contents or chart summarizing all the standards applicable to the vehicle pursuant to 49 CFR 568.4(a)(7).

(b) For vehicles with a GVWR greater than 10,000 lbs., unloaded vehicle weight plus 500 lbs. (including driver and instrumentation).

Maximum drive-through speed means the highest possible constant speed at which the vehicle can be driven through 200 feet of a 500-foot radius curve arc without leaving the 12-foot lane.

Parking mechanism means a component or subsystem of the drive train that locks the drive train when the transmission control is placed in a parking or other gear position and the ignition key is removed.

Peak friction coefficient or PFC means the ratio of the maximum value of braking test wheel longitudinal force to the simultaneous vertical force occurring prior to wheel lockup, as the braking torque is progressively increased.

Pressure component means a brake system component that contains the brake system fluid and controls or senses the fluid pressure.

Regenerative braking system or RBS means an electrical energy system that is installed in an EV for recovering or dissipating kinetic energy, and which uses the propulsion motor(s) as a retarder for partial braking of the EV while returning electrical energy to the propulsion batteries or dissipating electrical energy.

Skid number means the frictional resistance of a pavement measured in accordance with ASTM E274-70 (incorporated by reference, see § 571.5) at 40 mph, omitting water delivery as specified in paragraphs 7.1 and 7.2 of that method.

Snub means the braking deceleration of a vehicle from a higher reference speed to a lower reference speed that is greater than zero.

Spike stop means a stop resulting from the application of 200 lbs of force on the service brake control in 0.08 s.

Split service brake system means a brake system consisting of two or more subsystems actuated by a single control, designed so that a single failure in any subsystem (such as a leakage-type failure of a pressure component of a hydraulic subsystem except structural failure of a housing that is common to two or more subsystems, or an electrical failure in an electric subsystem) does not impair the operation of any other subsystem.

Stopping distance means the distance traveled by a vehicle from the point of application of force to the brake control to the point at which the vehicle reaches a full stop.

Tandem axle means a group of two or more axles placed in close arrangement one behind the other with the center lines of adjacent axles not more than 72 inches apart.

Variable proportioning brake system means a system that automatically adjusts the braking force at the axles to compensate for vehicle static axle loading and/or dynamic weight transfer between axles during deceleration.

Wheel lockup means 100 percent wheel slip.

S5. Requirements.

S5.1 Service brake systems. Each vehicle must be equipped with a service brake system acting on all wheels. Wear of the service brake must be compensated for by means of a system of automatic adjustment. Each passenger car and each multipurpose passenger vehicle, truck, and bus with a GVWR of 10,000 pounds or less must be capable of meeting the requirements of S5.1.1 through S5.1.6 under the conditions prescribed in S6, when tested according to the procedures and in the sequence set forth in S7. Each school bus with a GVWR greater than 10,000 pounds must be capable of meeting the requirements of S5.1.1 through S5.1.5, and S5.1.7 under the conditions specified in S6, when tested according to the procedures and in the sequence set forth in S7. Each multipurpose passenger vehicle, truck and bus (other than a school bus) with a GVWR greater than 10,000 pounds must be capable of meeting the requirements of S5.1.1, S5.1.2, S5.1.3, and S5.1.7 under the conditions specified in S6, when tested according to the procedures and in the sequence set forth in S7. Except as noted in S5.1.1.2 and S5.1.1.4, if a vehicle is incapable of attaining a speed specified in S5.1.1, S5.1.2, S5.1.3, or S5.1.6, its service brakes must be capable of stopping the vehicle from the multiple of 5 mph that is 4 to 8 mph less than the speed attainable in 2 miles, within distances that do not exceed the corresponding distances specified in Table II. If a vehicle is incapable of attaining a speed specified in S5.1.4 in the time or distance interval set forth, it must be tested at the highest speed attainable in the time or distance interval specified.

S5.1.1 Stopping distance. (a) The service brakes shall be capable of stopping each vehicle with a GVWR of less than 8,000 pounds, and each school bus with a GVWR between 8,000 pounds and 10,000 pounds in four effectiveness tests within the distances and from the speeds specified in S5.1.1.1, S5.1.1.2, S5.1.1.3, and S5.1.1.4.

(b) Any vehicle equipped with an axle that has a gross axle weight rating (GAWR) of 29,000 pounds or more;

(C) Notwithstanding the certification statements in paragraph (d)(2)(v)(A) of this section, the legal responsibilities and liabilities for certification under the Vehicle Safety Act shall be allocated among the vehicle manufacturers as provided in 567.5(b)(1), (c)(1), and (d)(1), and 49 CFR 568.4(a)(9).

(2) Incomplete vehicle document or IVD means the document described in 49 CFR 568.4(a) and (b).

Incomplete vehicle manufacturer means a person who manufactures an incomplete vehicle by assembling components none of which, taken separately, constitute an incomplete vehicle.

Intermediate manufacturer means a person, other than the incomplete vehicle manufacturer or the final-stage manufacturer, who performs manufacturing operations on a vehicle manufactured in two or more stages.

Replica motor vehicle means a motor vehicle meeting the definition of replica motor vehicle in 49 CFR part 586.