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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



Displaying 991 - 1000 of 2067
Interpretations Date

ID: nht95-4.75

Open

TYPE: INTERPRETATION-NHTSA

DATE: November 13, 1995

FROM: B. Michael Korte, Esq. -- Law Firm of John B. Schwabe II

TO: NHTSA

TITLE: Airbag Safety

ATTACHMT: 1/29/96 letter from Samuel J. Dubbin to B. Michael Korte (A44; Std. 208)

TEXT: To Whom It May Concern:

I am a lawyer in St. Louis, Missouri who represents a client who injured in a rearend collision with another driver. The other driver's airbag deployed, but the other driver claims that she was travelling less than 15 miles per hour at impact.

I have, as best as I can, reviewed 49 CFR 571.208 and other sections of the Code of Federal Regulations regarding federal standards as to the deployment of airbags. After doing so, however, I am unable to determine whether or not any federal standard s exist as to the deployment of airbags. In other words, I am unable to determine whether or not federal regulations establish a minimum speed that vehicles must be travelling, below which an airbag will not deploy.

I would appreciate it if you would contact me and let me know whether or not any such regulations or guidelines exist. Thank you for your cooperation, courtesy and attention to this request.

ID: 9792

Open

Eric T. Stewart, Engineering Manager
Mid Bus
3555 St. Johns Road
P.O. Box 1985
Lima, OH 45802-1985

Dear Mr. Stewart:

This responds to your letter of March 17, 1994, regarding a final rule published November 2, 1992 (57 FR 49413) amending Standard No. 217, Bus Emergency Exits and Window Retention and Release. You requested clarification of the width requirement in S5.5.3(c) for retroreflective tape.

You are correct that there was a discrepancy concerning the size of the tape caused by the metric conversion in the final rule. Enclosed is a copy of a July 7, 1993 letter to Mr. Thomas D. Turner of the Blue Bird Body Company which discusses this issue. As explained in that letter, we plan to issue a correction notice of the November 2, 1992 rule that would specify a minimum size of 2.5 cm for the tape. Until the correction is issued, we will not take enforcement measures regarding tape size against a manufacturer who uses 1 inch wide retroreflective tape.

I hope you find this information helpful. If you have any other questions, please contact us at this address or by phone at (202) 366-2992.

Sincerely,

John Womack Acting Chief Counsel

Enclosure

ref:217 d:4/l/94

1970

ID: nht76-2.50

Open

DATE: 02/09/76

FROM: AUTHOR UNAVAILABLE; Richard B. Dyson; NHTSA

TO: Gillig Brothers School Bus Co.

TITLE: FMVSS INTERPRETATION

TEXT: This is in response to your request for information concerning methods of ensuring the compliance of school buses with the barrier crash test requirements of Federal Motor Vehicle Safety Standard No. 301-75, Fuel System Integrity.

Standard No. 301-75, while establishing minimum performance levels, does not specify any particular design requirements for school bus fuel systems. A manufacturer is free to design his vehicles in the manner that he believes most appropriate to ensure compliance. To this end, you may find helpful information in a study by Dynamic Science entitled School Bus Safety Improvement Program. The NHTSA cannot assure you, however, that following the suggestions contained in the study will guarantee that your school buses will comply with the standard.

The study is filed in the NHTSA's public docket as document number 75-03-GR1. Copies may be obtained by writing to:

Technical Reference Branch National Highway Traffic Safety Administration Room 5108 400 Seventh Street, S.W. Washington, D.C. 20590

You should refer to the following publication numbers: HS 801-615, -616, and -617.

ID: nht81-1.13

Open

DATE: 02/11/81

FROM: AUTHOR UNAVAILABLE; F. Berndt; NHTSA

TO: Toyoda Gosei Co., Ltd.

TITLE: FMVSS INTERPRETATION

TEXT:

Mr. Katsuhiko Yokoi Assistant Manager - Tech. Dept. Toyoda Gosei Co., Ltd. 1, Nagahata, Ochiai, Haruhi-mura Nishikasugai-gun Aichi-pref., 452 JAPAN

Dear Mr. Yokoi:

The answers to the questions in your letter of January 20, 1982, are "yes" to both questions.

1. The "adjacent layers" referenced in Federal Motor Vehicle Safety Standard (FMVSS) No. 106, paragraphs S7.3.7, are (a) the inner tube and braided layer and (b) the braided layer and outer tube.

2. The adhesion requirements are met if both the tensile strengths measured between (a) the inner tube and braided layer and (b) that between the braided layer and the outer cover are equal to or greater than 8 lbs/inch as determined using the FMVSS No. 106 procedure. It should be noted that the 8 lbs/inch value is an absolute minimum value as indicated in paragraph S8.6.4(a) standard.

A copy of FMVSS No. 106 is included for your information.

Sincerely,

Vernon G. Bloom Safety Standards Engineer

Enclosure FMVSS No. 106

ID: aiam4932

Open
Deborah K. Nowak-Vanderhoef, Esq. General Motors Corporation Legal Staff New Center One Building 3031 West Grand Boulevard P.O. Box 33122 Detroit, MI 48232; Deborah K. Nowak-Vanderhoef
Esq. General Motors Corporation Legal Staff New Center One Building 3031 West Grand Boulevard P.O. Box 33122 Detroit
MI 48232;

"Dear Ms. Nowak-Vanderhoef: This responds to your request for a interpretation of Standard No. 209, Seat Belt Assemblies (49 CFR 571.209). Specifically, you asked if General Motors Corporation (GM) could include the term 'dynamically-tested' in the label required by S4.6(b) of Standard No. 209. The answer is that GM may do so. Prior to September 1, 1992, S4.6(b) of Standard No. 209 requires a dynamically tested manual belt to be labeled with the following statement: 'This dynamically-tested seat belt assembly is for use only in (insert specific seating position(s), e.g., front right) in (insert specific vehicle make(s) and model(s)). However, a November 4, 1991 final rule, published at 56 FR 56323, amended S4.6(b) by deleting the term 'dynamically-tested' from the required label, effective September 1, 1992. GM would like to continue to include the term 'dynamically-tested' on its labels. NHTSA has often addressed the issue of whether additional information may be provided along with information that is required to be labeled on the product in the context of our safety standards that apply to tires. NHTSA has consistently stated that additional information may be included on tires, provided that the additional information 'does not obscure or confuse the meaning of the required information, or otherwise defeat its purpose.' See, e.g., our May 31, 1988 letter to Mr. Garry Gallagher of Metzeler Motorcycle Tire. This is the same test we would apply in any of our safety standards for additional information that is provided along with required labeling information. Applying this test to the situation at hand, the purpose of the labeling requirements in Standard No. 209 is to minimize the likelihood of improper installations of dynamically-tested manual belts, by specifying the particular vehicles and seating positions in which the belts are designed to be installed. GM's proposed labels would provide the information about the particular vehicles and seating positions in which the belts are designed to be installed on the label of these belts. The only difference between GM's proposed labels and the exact language specified in S4.6(b) of Standard No. 209 would be that GM's proposed labels would describe the belts as 'dynamically-tested seat belt assemblies,' instead of 'seat belt assemblies.' We do not see how this additional description of the belts, which is accurate and consistent with the agency's use of the term 'dynamically-tested,' would obscure or confuse the meaning of the required information or otherwise defeat its purpose. Therefore, GM's proposed labeling would be permitted under the provisions of S4.6(b) of Standard No. 209 that take effect September 1, 1992. Enclosed with your letter was a petition for reconsideration that you asked be considered if the agency determined that the current language of S4.6(b) of Standard No. 209 prohibited the additional information to be provided on the GM labels. Since NHTSA has concluded that Standard No. 209 permits the additional information, we are disregarding that petition for reconsideration and will take no action on it. Sincerely, Paul Jackson Rice Chief Counsel";

ID: aiam4799

Open
Mr. William D. Rogers President SportsCar America, Inc. 400 South Elliott Road Chapel Hill, N.C. 27514; Mr. William D. Rogers President SportsCar America
Inc. 400 South Elliott Road Chapel Hill
N.C. 27514;

"Dear Mr. Rogers: We have received the (unsigned) petition of SportsCa America, Inc., for a temporary exemption from Motor Vehicle Safety Standard No. 208, on grounds of substantial economic hardship, and are returning all copies to you for the reasons stated below. SportsCar America wishes to undertake the importation and sale of passenger cars produced in Brazil. Pursuant to an 'Exclusive Distribution Agreement' ('the Agreement') with Alfa Metais Veiculos Ltda. of Brazil, which you enclosed, it has imported a prototype vehicle for study, with reference to its status of conformance with the U.S. vehicle safety and emission standards. The proper petitioner for this exemption is Alfa Metais Veiculos Ltda., identified in the Agreement that you attached as the 'Manufacturer.' Under Section l of the Agreement, SportsCar America is to return the prototype to the Manufacturer with 'those modifications necessary in order to meet the emission and safety standards necessary for the importation' of the cars, and the Manufacturer will then use it as a model for the production of vehicles for sale in the United States. Under 49 CFR Part 567, the Manufacturer must also attach its certification of compliance to the completed vehicle before its shipment to the United States. Part 555 restricts petitions for temporary exemptions to Manufacturers of motor vehicles. Although you identify SportsCar America as the 'distribution agent', we have no record that the Manufacturer has filed the designation of agent pursuant to 49 CFR 551.45 that is required of Manufacturers offering their products for importation and sale in the United States. Presumably Alfa Metais would wish to appoint SportsCar America as its agent. Once it has done so, SportsCar America may submit the petition on behalf of the Manufacturer. The production and financial data (in dollars, please) must be those of the Manufacturer. However, we regard as relevant to conformance arguments the efforts that SportsCar America intends to make during the time a possible exemption is in effect, as outlined in your petition. Noting your requests for confidential treatment of information, we are returning all copies of your petition, with our comments. Generally, the agency does not like to accord confidential treatment to all financial data submitted. At a minimum, it would like to include in its notice asking comments from the public a dollar amount of the cumulative net profit or loss experienced by the Manufacturer in the three years preceding the filing of the petition. Similarly, it would like to publish a dollar figure in discussing the effects of a denial of the petition on the petitioner. The purpose of this is our policy that if the public is to make an informed comment on the issue of whether compliance would cause a Manufacturer substantial economic hardship, the public should have access to much the same data as is available to the agency in its determination. If you would like clarification of any of these matters, Taylor Vinson of this Office (202-366-5263) will be happy to provide them. Sincerely, Paul Jackson Rice Chief Counsel Enclosures";

ID: aiam3655

Open
The Honorable Eldon Rudd, House of Representatives, Washington, DC 20515; The Honorable Eldon Rudd
House of Representatives
Washington
DC 20515;

Dear Mr. Rudd: This responds to your recent letter on behalf of your constituent, Mrs Jan Wilson, asking whether Federal law restricts motorists from having darkly tinted films installed on the windows of their automobiles.; The National Highway Traffic Safety Administration has authority t govern the manufacture of new motor vehicles and motor vehicle equipment. We have promulgated Federal Motor Vehicle Safety Standard No. 205, *Glazing Materials*, which specifies performance and location requirements for glazing used in vehicles. These requirements include specifications for minimum levels of light transmittance. Seventy percent transmittance is required in all areas requisite for driving visibility, which includes the windshield and all windows in passenger cars. This specification for light transmittance precludes darkly-tinted windows in new automobiles.; The agency has stated in past interpretations that solar films are no glazing materials themselves, and would not have to comply with Standard No. 205. However, use of such films on motor vehicles in certain cases would be prohibited if the vehicle glazing no longer complied with the light transmittance requirements of the standard (most of these films do reduce light transmittance below 70%). If a vehicle manufacturer or dealer places the film on glazing in a vehicle prior to sale of the vehicle, that manufacturer or dealer has to certify that the glazing continues to be in compliance with the requirements of Standard No. 205 (i.e., has to certify that the glazing still has a transmittance of at least 70%).; Regarding vehicles that have already been purchased, sectio 108(a)(2)(A) of the National Traffic and Motor Vehicle Safety Act (15 U.S.C. 1381) provides that no manufacturer, distributor, dealer or motor vehicle repair business shall knowingly render inoperative any device or element of design installed on or in a motor vehicle in compliance with an applicable motor vehicle safety standard. Thus, none of those persons may knowingly install a solar film on a vehicle for its owner if the vehicle glazing would no longer meet the light transmittance requirements of Standard No. 205. Whether this would be the case would have to be determined by the person making the installation. Violation of this provision could subject the manufacturer, distributor, dealer, or motor vehicle repair business to civil penalties up to $1,000 for each violation.; Please note, however, that under Federal law the vehicle owner ma alter his or her vehicle as is desired. This agency does not govern use of vehicles by owners, this is left to the States. Thus, under Federal law, an owner could install solar film on his or her vehicle whether or not such installation affected compliance with Standard No. 205.; In summary, Federal law does not preclude Mrs. Wilson from havin darkly tinted film on her passenger car, provided she installed the film herself. However, if a manufacturer, dealer, distributor or motor vehicle repair business (including an auto tint shop) installed the film for Mrs. Wilson, they are in violation of Federal law if the glazing no longer meets the 70% light transmittance requirements of Standard No. 205. The State of California is, of course, free to prohibit vehicle owners from operating vehicles with darkly tinted glazing in its jurisdiction.; Sincerely, Frank Berndt, Chief Counsel

ID: aiam1104

Open
Mr. Ralph H. Ullenberg, President, Milwaukee truck Center, Inc., 10521 West Layton Avenue, Milwaukee, WI 53228; Mr. Ralph H. Ullenberg
President
Milwaukee truck Center
Inc.
10521 West Layton Avenue
Milwaukee
WI 53228;

Dear Mr. Ullenberg: This is in reply to your letter of March 6, 1973, in which you as several questions regarding the certification of trucks with concrete mixers. You state that you supply a chassis to the Rex Chainbelt factory in Milwaukee, where a concrete mixer is installed. The combined unit is then shipped to a Rex dealer in Puerto Rico who sells the complete unit to a user. You provide weight ratings for the vehicle as follows: a gross vehicle weight rating, based on axle capacity, of 68,000 pounds, a rating, based on the tire capacity, of 56,740 pounds, and a gross weight of 66,800 pounds. Based on these figures you ask (1) Whether the truck can be completed in this fashion and shipped by you to Puerto Rico, (2) Whether the dealer in Puerto Rico can promise to install larger tires at a later date, (3) Whether Rex Chainbelt can certify the chassis at 68,000 pounds gross weight rating, if the dealer in Puerto Rico notifies Rex that he will change the tires at a later date, (4) Whether the chassis manufacturer can certify the truck chassis for a greater capacity than the lightest component if the local dealer or customer will notify him that they will bring the chassis to the higher certified level, and (5) What penalties can be imposed if a dealer or user does not make changes he has promised to make.; It appears to us from your letter that essentially the same issu underlies all your questions, that is, whether a final- stage manufacturer in completing a vehicle may place on it tires that are not sufficient to carry the vehicle at its gross vehicle weight rating, and elicit a promise from either a dealer or user that the latter will change the tires.; A truck that is equipped at the time of its manufacture with tire inadequate in terms of load rating to carry the truck at its gross vehicle weight rating would be considered by NHTSA to contain a safety related defect. The manufacturer of such a vehicle is subject to the provisions of section 113 of the National Traffic and Motor Vehicle Safety Act (15 U.S.C. 1402), which requires that notification of the defect be sent to first purchasers and dealers. A truck which was labeled with a gross vehicle weight rating below the minimum specified in 49 CFR 567(g)(3) would be in violation of the Certification regulations, and the person affixing such a label would be subject to civil penalties and other sanctions pursuant to section 108, 109, and 110 of the Safety Act (15 U.S. C. 1397, 1398, 1399). The Certification regulations (49 CFR Parts 567, 568) require weight ratings, in cases of vehicles manufactured in two or more stages, to be based on the vehicle as completed by the final-stage manufacturer. That manufacturer is not permitted to delegate his responsibility to a dealer or user.; The NHTSA has made an exception in the case of vehicles shipped withou tires, or vehicles shipped with temporary tires that are not intended to be used on the vehicle apart from the limited purpose of shipment. Your letter contains no implication that your case in within this exception.; Yours truly, Richard B. Dyson, Assistant Chief Counsel

ID: aiam4039

Open
Mr. William R. Fink, President, Isis Imports, Ltd., P.O. Box 2290, U.S. Custom House, San Francisco, CA 94126; Mr. William R. Fink
President
Isis Imports
Ltd.
P.O. Box 2290
U.S. Custom House
San Francisco
CA 94126;

Dear Mr. Fink: This is in reply to your letter of November 22, 1985, to the forme Chief Counsel of this agency, Frank Berndt. Your company, Isis Imports, is an importer of Morgan passenger cars, and has heretofore imported them pursuant to 19 C.F.R. 12.80(b)(1)(iii). Upon advice of your attorney you have concluded that you may instead import them pursuant to 12.80(b)(1)(ix), and wish to inform the National Highway Traffic Safety Administration of that fact.; More specifically, under 12.80(b)(1)(iii) an importer declares that hi vehicles was not manufactured in conformity with the Federal motor vehicle safety standards, but that it has been, or will be, brought into conformity, he also is required to furnish a bond for the production of a conformity statement. Under 12.80(b)(1)(ix), the importer simply declares that the vehicle is an 'incomplete vehicle' as defined by 49 CFR Part 568, no bond is required as it is assumed that the vehicle will be completed to conform to the Federal safety standards and bear the certification of its final- stage manufacturer. Because the Morgans are received from Morgan Motor Company without 'major components of the fuel system: no fuel tank, fuel lines, carburetor, etc.,' you believe that they are 'incomplete vehicles,' which are defined by S568.3 as 'an assemblage consisting as a minimum of frame and chassis structure, power train, steering system, suspension system, and braking system, to the extent that those systems are to be part of the completed vehicle, that requires further manufacturing operations...to become a completed vehicle.'; We disagree with your conclusion. The rulemaking history of Part 56 clearly shows that the intent of the regulation is to cover vehicles whose manufacture has customarily been shared. As the agency commented in 1970, 'A large number of heavy vehicles of all types, of recreational vehicles, and of special purpose vehicles are manufactured in two or more stages, of which the first is an incomplete vehicle such as a stripped chassis, chassis cowl, or chassis cab to which one or more subsequent manufacturers add components to produce a completed vehicle.' (35 FR 4639) The Morgan, on the other hand, is a passenger car ordinarily manufactured in a single stage, and in this instance is nonetheless virtually complete when it arrives in the United States. It is therefore a 'motor vehicle' within the meaning of 19 CFR 12.80(b)(1)(iii), and the agency will not accept any HS-7 forms evidencing attempts to enter the vehicles pursuant to 12.80(b)(1)(ix).; I enclose copies of a couple of rulemaking proposals on Part 568 s that you might have a better understanding of its thrust. Were we to accept your interpretation, S568.4(a) would require Morgan Motor Company to furnish a document with each vehicle advising Isis how compliance with each applicable Federal motor vehicle safety standard might be affected by its final manufactured operations. Given the decision of Peter Morgan over the years not to conform his vehicles for the American market, we question whether he would furnish a document attesting that his product complies with all Federal motor vehicle safety standards, except 301, *Fuel System Integrity*.; Sincerely, Erika Z. Jones, Chief Counsel

ID: aiam4255

Open
Mr. William Wallace, Assistant Manager, Chemical Commodities, New York City Transit Authority, 25 Jamaica Avenue, Brooklyn, NY 11207; Mr. William Wallace
Assistant Manager
Chemical Commodities
New York City Transit Authority
25 Jamaica Avenue
Brooklyn
NY 11207;

Dear Mr. Wallace: Thank you for your letter of June 19, 1985, concerning how ou regulations would affect the use of certain glazing materials in buses. You explained that the Transit Authority has recently contracted to have several hundred buses rehabilitated. As a part of that work, the side glazing of the buses was replaced with glazing that contained the following markings, 'Lexan, MR 5000 sheet, ANSI Z 26-1, Camplas, NY.'; Subsequent to receipt of your letter, we received additiona information from General Electric, the manufacturer of Lexan, concerning the glazing material used in the side windows of your buses. According to General Electric, the Lexan glazing material used in these windows can meet all of the performance requirements set in Standard No. 205 for 'AS-5' glazing materials. The glazing material apparently was not marked as 'AS-5' material. As discussed below, if the only markings on the glazing are the markings you described in your letter, the glazing apparently does not comply with the marking requirements of Standard No. 205, *Glazing Materials*.; Standard No. 205 specifies performance and location requirements fo glazing used in new vehicles and glazing sold as replacement equipment. (The various types of glazing are designated as 'items' in the standard.) Plastic glazing materials, such as Lexan, can be used in a number of different locations in a bus depending on which performance requirements the glazing meets. If the plastic glazing meets the requirements set for AS-5 glazing materials, it can be used in any window in a bus, except for the windshield, the windows to the immediate right and left of the driver, and the rearmost windows, if used for driving visibility.; In addition to setting performance requirements for different items o glazing, the standard requires glazing materials to contain certain markings. The marking requirements of S6 of the standard vary depending on the intended use of the glazing and the person that is marking the glazing. At a minimum, the standard requires the glazing to be marked with the AS number (which indicates that the material meets the performance requirements set for that 'item' of glazing material), a model number and the manufacturer's logo. The information you provided about the markings on the glazing installed in your buses indicates that the glazing does not have an AS number marked on it.; Any glazing sold for use in a motor vehicle must conform to th applicable requirements of Standard No. 205. Since there appears to be an apparent noncompliance, we have been in contact with General Electric to obtain further information about this possible noncompliance. Our regulations do not preclude the Transit Authority from operating a vehicle with noncomplying glazing materials, however, you should check with State authorities to determine the effect of New York law on operating these buses.; Thank you for bringing this matter to the attention of the agency. I you need further information, please let me know.; Sincerely, Erika Z. Jones, Chief Counsel

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.

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