Interpretation ID: nht94-4.23

TYPE: INTERPRETATION-NHTSA

DATE: September 7, 1994

FROM: John Womack -- Acting Chief Counsel, NHTSA

TO: C. N. Littler -- Motor Coach Industries, Administrator Regulatory Affairs, Winnipeg, Manitoba, CANADA

TITLE: NONE

ATTACHMT: Attached to Letter Dated 01/06/94 from C. N. Litter to Mary Versailles

TEXT: This responds to your letter concerning whether a New York State law addressing the in-use stopping ability of privately owned motor coaches is preempted by Federal law. I apologize for the delay in our response. The New York law states that a vehicle must be capable of stopping "at a rate of deceleration equivalent to a stop within 22.2 feet from a speed of 20 miles per hour." You believe that @ 103(d) of the National Traffic and Motor Vehicle Safety Act ("Safety Act") preempts the New York law, sinc e the state law is not identical to Federal motor vehicle safety standard No. 121, Air Brake Systems. Please note that the Safety Act has been codified at 49 U.S.C. 30101 et seq. and that the citation for 103 (d) is now 49 U.S.C. @ 30103.

As explained below, Standard No. 121 currently does not have stopping distance requirements in effect; therefore, the New York law is not currently preempted by a Federal safety standard. Nevertheless, the agency has issued a proposal to reinstate stopp ing distance requirements in Standard No. 121. (58 FR 11003, February 23, 1993). If the agency issues a final rule to reinstate stopping distances, then any more stringent requirements in the New York law (addressing the same aspects of performance as Standard No. 121) would be preempted.

Title 49 U.S.C. @ 30103 states:

Whenever a Federal motor vehicle safety standard . . . is in effect, no State or political subdivision of a State shall have any authority either to establish, or to continue in effect, with respect to any motor vehicle or item of motor vehicle equipm ent any safety standard applicable to the same aspect of performance of such vehicle or item of equipment which is not identical to the Federal standard.

That provision preempts New York's law if there is a Federal safety standard in effect, the state law covers the same aspect of performance as that Federal standard, and the State law is not identical to the Federal safety standard. While you are correct that Standard No. 121 refers to stopping performance in S5.3.1, you apparently were not aware of a provision in S3 that states

Notwithstanding any language to the contrary, sections S5.3.1, S5.3.1.1, S5.3.2, S5.3.2.1, S5.3.2.2, S5.7.1, S5.7.3(a) and S5.7.3(b) of this standard are not applicable to trucks and trailers, and section S5.3.1 of this standard is not applicable to b uses.

The agency amended the standard to include this provision as the result of a ruling in PACCAR v. NHTSA, 573 F.2d 632, (9th Cir. 1978), cert. denied, 439 U.S. 862 (1978), in which a Federal Court of Appeals invalidated Standard No. 121's stopping distance requirements until the agency obtains "more probative and convincing data evidencing the reliability and safety of vehicles that are equipped with antilock." While the provision did not originally cover buses other than school buses, NHTSA extended the provision to non-school buses in 1987. See 52 FR 20602. Because there are no Federal stopping distance requirements in effect, the New York law is not preempted.

As noted above, NHTSA has issued a notice proposing to reinstate stopping distance requirements for air braked vehicles. The agency is currently reviewing comments to that proposal, and may issue a final rule reinstating stopping distance requirements. If the agency decides to amend Standard No. 121 to include such requirements, then any more stringent requirements in the New York law (addressing the same aspects of performance as Standard No. 121) would be preempted.

I note that the New York law applies to vehicles in use, while Standard No. 121 applies to new vehicles. In general, State laws governing the operation of vehicles are not preempted by inconsistent Federal motor vehicle safety standards unless the State law is more stringent than the Federal standard (with respect to the same aspect of performance). A more stringent law would be preempted, since it would preclude the sale of vehicles that comply with Federal standards.

I also note that the in-use braking performance of many motor coaches is regulated by the Federal Highway Administration. We have referred your letter to that agency's Office of Motor Carrier Standards concerning the issue of whether its regulations pre empt the New York law.

I hope this information is helpful. If you have any questions about NHTSA's safety standards, please feel free to contact Marvin Shaw at this address or by telephone at (202) 366-2992. If you wish to contact someone in the Federal Highway Administratio n's Office of Chief Counsel concerning the motor carrier standards, please call Charles Medalen at (202) 366-1354.