
NHTSA Interpretation File Search
Overview
NHTSA's Chief Counsel interprets the statutes that the agency administers and the standards and regulations that it issues. Members of the public may submit requests for interpretation, and the Chief Counsel will respond with a letter of interpretation. These interpretation letters look at the particular facts presented in the question and explain the agency’s opinion on how the law applies given those facts. These letters of interpretation are guidance documents. They do not have the force and effect of law and are not meant to bind the public in any way. They are intended only to provide information to the public regarding existing requirements under the law or agency policies.
Understanding NHTSA’s Online Interpretation Files
NHTSA makes its letters of interpretation available to the public on this webpage.
An interpretation letter represents the opinion of the Chief Counsel based on the facts of individual cases at the time the letter was written. While these letters may be helpful in determining how the agency might answer a question that another person has if that question is similar to a previously considered question, do not assume that a prior interpretation will necessarily apply to your situation.
- Your facts may be sufficiently different from those presented in prior interpretations, such that the agency's answer to you might be different from the answer in the prior interpretation letter;
- Your situation may be completely new to the agency and not addressed in an existing interpretation letter;
- The agency's safety standards or regulations may have changed since the prior interpretation letter was written so that the agency's prior interpretation no longer applies; or
- Some combination of the above, or other, factors.
Searching NHTSA’s Online Interpretation Files
Before beginning a search, it’s important to understand how this online search works. Below we provide some examples of searches you can run. In some cases, the search results may include words similar to what you searched because it utilizes a fuzzy search algorithm.
Single word search
Example: car
Result: Any document containing that word.
Multiple word search
Example: car seat requirements
Result: Any document containing any of these words.
Connector word search
Example: car AND seat AND requirements
Result: Any document containing all of these words.
Note: Search operators such as AND or OR must be in all capital letters.
Phrase in double quotes
Example: "headlamp function"
Result: Any document with that phrase.
Conjunctive search
Example: functionally AND minima
Result: Any document with both of those words.
Wildcard
Example: headl*
Result: Any document with a word beginning with those letters (e.g., headlamp, headlight, headlamps).
Example: no*compl*
Result: Any document beginning with the letters “no” followed by the letters “compl” (e.g., noncompliance, non-complying).
Not
Example: headlamp NOT crash
Result: Any document containing the word “headlamp” and not the word “crash.”
Complex searches
You can combine search operators to write more targeted searches.
Note: The database does not currently support phrase searches with wildcards (e.g., “make* inoperative”).
Example: Headl* AND (supplement* OR auxiliary OR impair*)
Result: Any document containing words that are variants of “headlamp” (headlamp, headlights, etc.) and also containing a variant of “supplement” (supplement, supplemental, etc.) or “impair” (impair, impairment, etc.) or the word “auxiliary.”
Search Tool
NHTSA's Interpretation Files Search
Interpretations | Date |
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ID: nht94-4.34 |
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ID: nht94-4.35OpenTYPE: INTERPRETATION-NHTSA DATE: September 23, 1994 FROM: Andrea Seastrand -- California State Assemblywoman TO: John Womack, Acting Chief, NHTSA TITLE: N ATTACHMT: ATTACHED TO LETTER DATED 12/6/94 FROM PHILIP R. RECHT TO ANDREA SEASTRAND (A42; STD. 119) TEXT: Enclosed is a copy of a Casework Intake Form on behalf of my constituent, Mr. Eric Brandt. Please provide me with information on how to best advise Mr. Brandt and address him personally in your response. Please direct your response to my San Luis Obisp o district office. Thank you in advance for your attention in this matter. |
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ID: nht94-4.36OpenTYPE: INTERPRETATION-NHTSA DATE: September 26, 1994 FROM: Frank Lautenberg -- U.S. Senator TO: Susan Slye -- Congressional Affairs, Federal Highway Administration TITLE: None ATTACHMT: ATTACHED TO LETTER DATED 10/28/94 FROM PHILIP R. RECHT TO FRANK LAUTENBERG (A42; REDBOOK 2; STD. 108) TEXT: Enclosed is a copy of a letter I received from Dr. Mark Bauman concerning an automobile courtesy signal. Please review the issues raised by Dr. Bauman and advise me on your findings in the matter. Please direct your response to Andrea Edwards at my Barrington office. Thank you for your assistance in this case. 538 Justice Drive Marlton, NJ 08053-5345 August 31, 1994 The Honorable Senator Frank Lautenberg 208 White Horse Pike Barrington, NJ 08007 Dear Senator Lautenberg, I had the pleasure of speaking with your very able assistant, Ms. Andrea Edwards, last Friday regarding the letter which was forwarded in response to my assistance on our Automobile Courtesy Signal. Enclosed please find a copy of our schematic/installat ion instructions for the signal (we do have a working prototype of the signal). This, in addition to the material which I have sent you earlier this year, should hopefully be sufficient for initial review by the appropriate federal agency. Thank you and your staff very much for your assistance in this matter. I look forward to a favorable response. Sincerely, Dr. Mark L. Bauman AUTOMOBILE COURTESY SIGNAL INSTALLATION (TEXT AND GRAPHICS OMITTED) 538 Justice Drive Marlton, NJ 08053-5345 August 18, 1994 The Honorable Senator Frank Lautenberg 208 White Horse Pike Barrington, NJ 08007 Dear Senator Lautenberg, I am in receipt of your letter of August 5 with the enclosed response from the National Highway Traffic Safety Administration. I am somewhat confused about some of the comments made by Mr. Hart, the acting Administrator. First, he indicates that his agency is not authorized to approve or endorse specific devices and that each manufacturer must certify that its equipment meets applicable safety standards issued by that agency. If there are standards, could we attempt to "test" our signal based upon these standards with information that we already have? If there is such a "self-certification" process, do we have to already be a manufacturer in order to see if our signal will be certified as safe? That would be cost-pro hibitive at this point unless we could be given some way to test our signal based upon our working prototype and other pertinent data. Secondly, Mr. Hart states that there are many suggestions for auxiliary signal devices but states further that there is no objective or scientific evidence that these devices will result in a net safety improvement. I am willing, as a doctor trained in objectivity, to concede that objective data is important in establishing a set of conditions. However, if one observed improvements in medicine, science, etc. throughout history it would be apparent that there are many situations that are simply obvious !! While I would also concede that we don't necessarily have the most perfect solution to this problem, there is no doubt that something should be done to cut down on intersection accidents or potential accidents and we feel that our signal at least has as valid a reason for existence as any other. There are many such instances for this need every day; the conglomeration of statistics should be able to confirm, while at least not denying, such evidence. Mr. Hart eventually indicates that such signal devices could confuse other motorists rather than assisting them and that our device may not be any better than any others. Would it not be beneficial to be able to test such a device objectively or at leas t observe it rather than make such an assumption without observation? I sent a letter to Vice President Gore last fall about such similar matters because he reportedly believes that there is too much bureaucracy in our government. He eventually replied, agreeing with me. How can this nation advance if there are such rest rictive regulations everywhere? If you have any suggestions as to how I can proceed please be so kind as to inform me. You are, after all, the Chairman of the Senate Transportation Committee!! Thank you and your staff very much for your assistance in this matter. Dr. Mark L. Bauman |
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ID: nht94-4.37OpenTYPE: INTERPRETATION-NHTSA DATE: September 28, 1994 FROM: Paul N. Wagner, President, Bornemann Products, Inc. TO: Mary Versailles -- Office of the Chief Counsel, NHTSA TITLE: Re: F.M.V.S.S. #207 Seating Systems ATTACHMT: ATTACHED TO LETTER DATED 12/23/94 FROM PHILIP R. RECHT TO PAUL N. WAGNER (A42; STD. 207); ALSO ATTACHED TO LETTER DATED 8/26/88 FROM ERIKA Z. JONES TO GLENN L. DUNCAN TEXT: Request for Comment From Chief Counsel: Earlier this year, the Agency amended F.M.V.S.S. #208 for seat belt comfort and fit by requiring in the future that designated seating positions have either an adjustable "D" ring or seat belts integrated into the seat (integrated seats). This letter is directed to an issue concerning integrated seats. An integrated seat is defined for now as a seat or seat system that the seat belts are located on the seating structure, in an all-belts-to-seat application; the pelvic portion of the belt may be attache d to the seat bottom, seat slides, or seat riser, while the "D" ring and shoulder belt is actually attached to the back of the seat itself. Our firm is a manufacturer of seating systems for light trucks manufactured in more than one stage, and is considering the manufacture of integrated seating systems. The questions we pose, which may already be before the Agency, are ones that relate to testing requirements for integrated seating. Referring to F.M.V.S.S. #207, S4.2.1, which states: "SEAT ADJUSTMENT. Except for vertical movement of nonlocking suspension type occupant seats in trucks or buses, the seat shall remain in its adjusted position during the application of each force specified in S4.2." Subparagraph S4.2 refers to specific static requirements for seating systems. When a seat belt system, such as those on integrated seats, are attached to the seating system, then the static loads of F.M.V.S.S. #207, S4.2, and F.M.V.S.S. #210, S4.2, are p erformed simultaneously. |
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ID: nht94-4.38OpenTYPE: INTERPRETATION-NHTSA DATE: September 29, 1994 FROM: Samson Helfgott -- Helfgott and Karas TO: John Womak, Esq. -- Acting Chief Counsel, NHTSA TITLE: Re: Our Ref. No.: 12.065 ATTACHMT: ATTACHED TO LETTER DATED 12/8/94 FROM PHILIP R. RECHT TO SAMSON HELFGOTT (A42; REDBOOK 2; STD. 108) TEXT: I received your letter of July 20, 1994 for which I thank you (a copy of which is enclosed for your reference). At the time we had requested information with respect to the utilization of the red and amber lighting arrangement to be placed along the sid e of trucks and other vehicles. At the time, you indicated that we did not state the number and candela of the lamps and how they would be arranged along the side of the vehicle. I now enclose an information sheet with respect to the lighting indicating what we have in mind for placement on the sides of the vehicle. The side front of the vehicle will have only yellow lights and the side rear only red. The red and yellow ligh ts will be placed in conjunction along the center of the side of the vehicle. The running lights are to be in keeping with NHTSA and/or EEC specifications. As we previously explained, during normal vehicle operation the amber (yellow) side lamps of the system would be activated. When the brake pedal is applied, the amber (yellow) lights are extinguished and the required stop lamps and red side lamps of the system would be activated. I would appreciate your comments whether you believe this system would be in violation of any of the Standards. I look forward to receiving your reply. ENCLOSURE TANKER TRAILER SIDE SAFETY SIGNALIGHT SYSTEM IN CONJUNCTION WITH NHTSA THREE LIGHT STANDARD 108 RS (RIGHT SIDE) MAJORITY OF IMPACTS LS (LEFT SIDE) BALANCE Auxiliary Lighting System designed for sides of HAZMAT Tankers to comply or accomplish a no objections from NHTSA Standard 108 [TEXT OMITTED - SEE ORIGINAL SOURCE] |
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ID: nht94-4.39OpenTYPE: INTERPRETATION-NHTSA DATE: September 29, 1994 FROM: Alberto Negro -- Chief Executive Officer, Fiat Auto R&D U.S.A TO: John Womack -- Acting Chief Counsel, NHTSA TITLE: 49 CFR Part 583 - Automobile Parts Content Labeling Request for Interpretation ATTACHMT: ATTACHED TO 3/14/95 LETTER FROM PHILIP R. RECHT TO ALBERTO NEGRO (PART 583; REDBOOK (2)) TEXT: I am writing to ask that you verify whether the 1000 unit threshold of 49 CFR 583.5(g) applies to the Alfa Romeo and Ferrari marques separately or collectively, as those marques are both owned by Fiat S.p.A. Fiat S.p.A. is the stockholder of Fiat Auto S. p.A., which produces Alfa Romeo cars, and of Ferrari S.p.A. which produces Ferrari cars. I thank you for your consideration and I remain at your disposal for all additional information that you require. |
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ID: nht94-4.4OpenTYPE: INTERPRETATION-NHTSA DATE: August 18, 1994 FROM: John Womack -- Acting Chief Counsel, NHTSA TO: Richard J Quigley TITLE: None ATTACHMT: Attachment dated 8/1/94: Fax from Richard Quigley to John Womack TEXT: This responds to your request for reconsideration of our July 15, 1994 interpretation letter on Standard No. 218, Motorcycle helmets. In that letter, we stated that a drawing you provided would not meet the requirement in S5.6.1(e) of the standard that m otorcycle helmets be labeled with the symbol DOT. You enclosed a new drawing and ask whether it meets S5.6.1(e). The answer is no. The new version of the drawing consists of three figures that you believe constitute the symbol "DOT." Your new drawing continues to incorporate a corporate logo in lieu of the letter "O." As explained in our July 15, 1994 letter, because the symbol DOT constitutes the manufacturer's certification that the helmet conforms to Standard No. 218, there must be no ambiguity in the symbol. Using the corporate logo in lieu of the letter "O" introduces ambiguity as to whether the manufacturer has certified the helmet. Thus, the new version of the drawing you provided does not meet S5.6.1(e) of Standard No. 218. I hope this answers your question. |
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ID: nht94-4.40OpenTYPE: INTERPRETATION-NHTSA DATE: September 30, 1994 FROM: Arthur W. Perkins -- Perkins, Philips and Puckhaber TO: John Womack -- Assistant Chief Counsel, NHTSA TITLE: Re: Robert E. Dwyer, Administrator of the Estate of Sean P. Dwyer, Kelly Nedeau, Steven Nedeau and Diane E. Surran, Administratrix of the estate of Ronald G. Reed, Jr. v. Dobles Chevrolet, Inc., Van-Go, Inc., and Arthur "Lucky" Young, d/b/a Custom 's Unlimited ATTACHMT: Attached to 2/3/95 letter from Philip R. Recht to Arthur W. Perkins (A43; Std. 207; Std. 208; Std. 301; Part 567.7); Also attached to 7/12/91 letter from Paul Jackson Rice to Samuel Albury TEXT: Dear Assistant Chief Womack: This office has had numerous conversations with Attorneys Marvin Shaw and Mary Versaille of your office relative to the applicability of various federal regulations to a motor vehicle that was converted from its original intended purpose as a cargo va n to a passenger vehicle. My office represents the interests of two estates and two injured parties in a products liability and negligence action which has been brought against a retail automobile dealership and the customizing company. During our conversations with Mr. Shaw and Ms. Versaille, they informed me that by directing a letter to you outlining certain issues, we could obtain an opinion letter relative to the application of various sections of the Federal Motor Vehicle safet y Standards Act. I expect this case will go to trial sometime in late 1994 or early 1995, and I would appreciate receiving a response from you at your earliest convenience. Factual Summary Defendant Dobles Chevrolet, Inc. of Manchester, New Hampshire ordered a 1985 cargo Astro Van from General Motors. (See Exhibit 1A and 1B General Motors invoice to Dobles Chevrolet, Inc.) Dobles Chevrolet, Inc., after having the cargo van in its inven tory for approximately three months, permitted Arthur "Lucky" Young, d/b/a Custom's Unlimited, to take the van for the purpose of converting it from a cargo to a passenger van. (See Exhibit 2, Dobles Chevrolet Purchase Order (#43031) to Customs Unlimite d). Mr. Young was a jobber and had an arrangement with Defendant Van-Go of New England, Inc. of Saugus, Massachusetts to customize cargo vans to passenger vans for a fixed price. (See Exhibit 3, Customs Unlimited sales order of 7/25/85). 1. Van-Go Accessories performed the following modifications: The two Original Equipment Manufacturer (OEM) front driver and front passenger seats were removed and were replaced with "after market" captains style seats which were attached to rotating pedestals that were mounted on the original seat floor studs m anufactured by General Motors. 2. The van was further modified as follows: A. The exterior of the van was cut to install three windows two 26" x 18" and one 30" x 18". B. The ceiling and interior walls were covered with fabric. C. The corrugated metal floor was covered with plywood (held in place with sheet rock screws) over which there was an application of foam pad and carpeting. D. Two "after market" bench seats, middle and rear, (which folded to a platform bedding) were installed by using four mounting clips per seat frame. The mounting clips were held in place by one non-graded bolt, which passed through the elongated slot in the clip, through the carpet, the pad, the wood floor and the corrugated floor of the van and was bolted underneath using a washer and nut. (See Exhibit 4A, B & C, photos of bench seats and clips.) E. Type 2 seatbelts for each seating position, two in the middle and three in the back, were attached to the frames of these seats. (See Exhibit 5A & B, photos of bench seats with attached seatbelts.) The van was returned to Arthur Young, d/b/a Custom's Unlimited, absent any certification or any disclosure indicating that any work had been performed by Van-Go. Arthur Young performed some exterior painting, striping, put on new wheels, and affixed a 1 1/2" x 6" placard advertising that his firm had worked on the vehicle. Mr. Young then delivered the van to Dobles Chevrolet who prominently placed it in the showroom area and offered it for sale as a new vehicle. Mr. Paul Nadeau went to Dobles Chevrolet for the purpose of acquiring a family vehicle, and purchased the van on August 31, 1985 (see Exhibit 6 and Exhibit 7.) The placard affixed by Mr. Young was removed from the vehicle prior to Mr. Nadeau purchasing the vehicle. The motor vehicle was being used by Paul Nadeau's son, Scott Nadeau, on September 20, 1987 when he was driving the vehicle together with four passengers, one of whom was buckled in the front passenger seat. The other three passengers, two in the midd le seat and one in the rear seat, were not wearing seatbelts. Scott Nadeau lost control of the vehicle at approximately 45 miles per hour, and the vehicle struck a tree in a rearward rotating fashion at approximately 28 miles per hour, whereupon the sea ts rotated from underneath the clip and came loose from the floor, allowing the two bench seats and their three occupants to load against the rear cargo doors. The front passenger was ejected rearward from underneath her belt, when her seat back collaps ed and was catapulted to the rear of the van. As the vehicle rotated from the point of impact with the tree, an accelerated force was exerted by the four bodies and the two bench seats on the rear door, and the welds holding the latching mechanism yield ed, allowing the four occupants to be ejected out the rear cargo doors. Two of the passengers were killed and the other two sustained serious personal injuries. The back of the front passenger seat collapsed, in part because of the negligent manner in which the seat was affixed to the pedestal (only three nuts were insta lled although it was designed to be held by four), allowing the front passenger to slide under of the searbelt and be ejected out the rear door. The two occupants of the middle seats were ejected and killed, and the rear passenger, lying down on the ben ch seat, was ejected and sustained a head injury. The Plaintiffs have brought an action against the dealer (Dobles), the converter (Van-Go), and the broker (Arthur Young, d/b/a Custom's Unlimited) in strict liability in tort because the seats and the seat anchoring mechanism were inherently dangerous . The Plaintiffs claim 1) that the seats lacked sufficient strength, and 2) the anchoring system used for the seats in the vehicle did not comply with the minimum federal safety standards. The Defendants are using the following as defenses: 1. The seats met Federal Motor Vehicle Safety Standard No. 207 because they withstood the force of 20 g's times the weight of the seat. The seat weighed 50 pounds, therefore, if the seats and seat backs could withstand 1000 pounds of force, they com plied with the FMVSS. (The manufacturer tested the seats when they were attached to a metal surface with a clamp arrangement using two bolts and the seas withstood 20 times their weight. The manufacturer assumed that seatbelts would be attached to the floor and not to the frame of the seats. The seats were never tested as attached using a clamp with a single bolt to the plywood and carpeted surface of the customized van. Nor were the seats tested after the seatbelts were attached to them. 2. The components installed by Van-Go are "readily attachable" components and they are accordingly exempt by @ 567.7 from certifying the vehicle. 3. Since the Plaintiffs on the bench seats were not wearing seatbelts, the FMVSS relative to the strength of the frames of the seat, seat backs and anchoring system are not applicable, as they apply to forward forces only. The Plaintiffs request your opinion on the following with respect to Defendant Van-Go Accessories of New England, Inc.: 1. Are the items installed by Van-Go on the cargo van (e.g. windows, sub-flooring, padding, carpeting, seats, changing the seating arrangements, and attaching the seatbelts to the frames of the bench seats not designed to accommodate seatbelts) class ified as "readily attachable" and therefore exempt under @ 567.7? 2. If the items installed on the cargo van by Van-Go are not classified as "readily attachable", is Van-Go required under @ 567.7 to certify that they altered the vehicle? If so, what is the procedure for such certification? 3. Is it required that the vehicle as altered, including the seats and seat anchoring systems, be subjected to and be able to withstand the forces which would be applied to them under the fuel integrity test as set forth in Regulation 308? 4. Pursuant to the seat anchoring system requirements as set forth in Section 210, although they are applied in a forward direction, is it a reasonable assumption that the seat anchoring system should likewise resist the same forces in a rearward dir ection? 5. Do the requirements of Regulation 308 mean that the seats and seat backs must be able to withstand the forces which would be applied to them under fuel integrity testing in Regulation 308? The Plaintiffs request your opinion on the following with respect to Defendant Arthur "Lucky" Young, d/b/a Custom's Unlimited: 1. Are the items installed on the cargo van (e.g. exterior painting, striping and new wheels) by Arthur Young classified as "readily attachable" and therefore exempt under @ 567.7? 2. If the items installed on the cargo van by Arthur Young are not classified as "readily attachable", is Arthur Young required under@ 567.7 to certify that he altered the vehicle? 3. If the van has been altered by Van-Go, is Arthur Young as the broker between Dobles and Van-Go required to certify the van prior to returning it to Dobles? The Plaintiffs request your opinion on the following with respect to Defendant Dobles Chevrolet: 1. Is Dobles Chevrolet, as a dealer and first time seller of new motor vehicles, required to make certain that before it sells a new motor vehicle which has been altered, that the vehicle complies with the FMVSS as of the date of the alteration? 2. Who is ultimately responsible for making certain that a new vehicle, once certified by the manufacturer (General Motors) but subsequently altered, meets the FMVSS requirements prior to sale - the converter or the seller of the new vehicle? If you need any additional information please contact us and we will be pleased to immediately answer your requests. If the questions we have posed are too burdensome and you would like us to narrow our focus, please let us know right away and we wou ld be happy to modify our questions posed. It is my understanding that your department can normally respond to inquiries such as this within a sixty day time period. If that is not possible would you please contact us and let us know the expected date of your reply. Very truly yours, |
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ID: nht94-4.41OpenTYPE: INTERPRETATION-NHTSA DATE: October 01, 1994 EST FROM: Womack, John -- Acting Chief Counsel, NHTSA TO: March, Gary D. -- Director, Illinois Dept. of Transportation, Division of Traffic Safety TITLE: NONE ATTACHMT: Attached To 2/14/94 Letter From Gary D. March To John Womack (Occ 9667) TEXT: This responds to your letter of February 14, 1994, requesting an explanation of the compliance date for vehicles manufactured in two or more stages of a recent final rule amending Standard No. 217, Bus Emergency Exits and Window Retention and Release (57 FR 49413; November 2, 1992). The effective date for the November 2 final rule is May 2, 1994. Only vehicles manufactured on or after the effective date of an applicable requirement in a Federal motor vehicle safety standard must comply with that requirement. If a vehicle is manufa ctured in two or more stages, the final stage manufacturer is required to certify that the vehicle complies with "the standards in effect on the date of manufacture of the incomplete vehicle, the date of final completion, or a date between those two date s." (49 CFR Part @ 568.6). The choice of a date is the manufacturers. I hope you find this information helpful. If you have any other questions, please contact Walter Myers of my staff at this address or by phone at (202) 366-2992. |
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ID: nht94-4.42OpenTYPE: INTERPRETATION-NHTSA DATE: October 1, 1994 EST FROM: Womack, John -- Acting Chief Counsel, NHTSA TO: Littler, C. N. -- Motor Coach Industries, Administrator Regulatory Affairs, Winnipeg, Manitoba, Canada TITLE: NONE ATTACHMT: Attached To 1/6/94 Letter From C. N. Littler 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. 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. |
Request an Interpretation
You may email your request to Interpretations.NHTSA@dot.gov or send your request in hard copy to:
The Chief Counsel
National Highway Traffic Safety Administration, W41-326
U.S. Department of Transportation
1200 New Jersey Avenue SE
Washington, DC 20590
If you want to talk to someone at NHTSA about what a request for interpretation should include, call the Office of the Chief Counsel at 202-366-2992.
Please note that NHTSA’s response will be made available in this online database, and that the incoming interpretation request may also be made publicly available.