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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 14591 - 14600 of 16517
Interpretations Date

ID: nht93-6.17

Open

DATE: August 18, 1993

FROM: John Womack -- Acting Chief Counsel, NHTSA

TO: Calin Moldovean -- Vehicle Technology Engineer, TUV America, Inc.

TITLE: None

ATTACHMT: Attached to letter dated 7/20/93 from Calin Moldovean to John Womack (OCC 8899)

TEXT:

This responds to your inquiry asking about how this agency's regulations would apply to the introduction into the United States of a new "aftermarket" gas cap. I am pleased to have this opportunity to explain our regulations to you. I am also enclosing a copy of a fact sheet entitled "Information for New Manufacturers of Motor Vehicles and Motor Vehicle Equipment."

By way of background information, the National Highway Traffic Safety Administration (NHTSA) is authorized to issue Federal Motor Vehicle Safety Standards that set performance requirements for new motor vehicles and items of motor vehicle equipment. NHTSA is not authorized to certify or approve motor vehicles or motor vehicle equipment for compliance with the Federal Motor Vehicle Safety Standards. Instead, under the National Traffic and Motor Vehicle Safety Act, each manufacturer of a motor vehicle or item of motor vehicle equipment is responsible for certifying that its products meet all applicable safety standards.

There is currently no Federal Motor Vehicle Safety Standard that is directly applicable to a replacement gas cap. Nevertheless, you should be aware of Safety Standard No. 301, Fuel System Integrity, which may be relevant to the product in question. Standard No. 301 applies only to new motor vehicles and specifies performance requirements that must be met by the fuel system as a whole following crash tests. The standard does not apply to individual components of a fuel system or to aftermarket equipment for use on fuel systems.

Although Standard No. 301 would not directly apply to a replacement gas cap, there are responsibilities under Federal law of which you should be aware. Manufacturers of motor vehicle equipment, which includes gas caps, are subject to the requirements in sections 151-159 of the Safety Act concerning the recall and remedy of products with defects relating to motor vehicle safety.

In addition, there are prohibitions against certain modifications of new and used vehicles. Section 108(a)(2)(A) of the Safety Act specifies 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 new or used motor vehicle in compliance with any applicable Federal Motor Vehicle Safety Standard. Therefore, no person in any of the aforementioned categories may place the gas cap on a motor vehicle if by so doing the vehicle's compliance with Standard No. 301 were negatively affected. Whether your gas cap could be installed on a vehicle by a person in one of those categories without taking the vehicle out of compliance with Standard No. 301 or any other applicable Federal safety standard is a determination that must be made by the entity making the installation.

Please note that the prohibition of S 108(a)(2)(A) does not apply to individual vehicle owners who alter their own vehicles. Thus, under Federal law, a vehicle owner may install or remove any item of motor vehicle equipment regardless of its effect on compliance with the Federal safety standards. However, the agency encourages vehicle owners not to remove or otherwise tamper with vehicle safety equipment if the modification would degrade the vehicle's safety.

We suggest that you also contact the Environmental Protection Agency to see whether EPA has any type of emissions standard that might affect you as the manufacturer of a gas cap. The general telephone number for EPA is (202) 382-2090.

I hope this information is helpful. If you have any further questions about NHTSA's safety standards, please feel free to contact Marvin Shaw of my staff at this address or by telephone at (202) 366-2992.

ID: nht93-6.18

Open

DATE: August 18, 1993

FROM: John Womack -- Acting Chief Counsel, NHTSA

TO: Durin B. Rogers -- Saperstein (Saperston) & Day, P.C.

TITLE: None

ATTACHMT: Attached to letter dated 7/1/91 from Paul Jackson Rice to Richard E. Wright (Std. 205); Also attached to letter dated 11-29-84 from Frank Berndt to Wayne Ivie (Std. 205); Also attached to letter dated 7/8/93 from Durin B. Rogers to John Womack (OCC 8865)

TEXT:

This responds to your question about whether Standard No. 205, Glazing Materials, (49 CFR S571.205), applies to side windows in what you refer to as "fifth wheel campers/trailers." A picture accompanying your letter indicates that the camper has a tandem rear axle and is towed by a powered vehicle. As explained below, glazing materials used in new or used trailers are not covered by Standard No. 205.

Each Federal motor vehicle safety standard has an application section which specifies the vehicles or equipment to which the standard applies. Standard No. 205 sets performance requirements for glazing used in a wide range of vehicles. It does not, however, apply to trailers, which our regulations define as "a motor vehicle with or without motive power, designed for carrying persons or property and for being drawn by another motor vehicle" (49 CFR S571.3).

You also asked about Federal or industrial regulations that require use of Standard No. 205 glazing for window replacements and/or repairs. Standard No. 205 applies to aftermarket glazing materials for certain vehicle types. However, the standard does not apply to replacement glazing for use in trailers. There are no Federal regulations that would require Standard No. 205 glazing for window replacements or repairs, nor are we aware of any industry regulations about the replacement of glazing. You may wish to check with the State of New York which has the authority to regulate the operation and modification of vehicles by their owners. New York may have used this authority to issue regulations about replacing or repairing damaged glazing.

I hope this information is helpful. Please feel free to contact Marvin Shaw of my staff at this address or by telephone at (202) 366-2992 if you have any further questions or need additional information.

ID: nht93-6.19

Open

DATE: August 18, 1993

FROM: Tom DeLapp -- Executive Coach Builders, Inc.

TO: Chief Council -- NHTSA

TITLE: F.M.V.S.S. #207

ATTACHMT: Attached to letter dated 10/1/93 Est. from John Womack to Tom DeLapp (A41; Std. 207)

TEXT:

As a manufacturer of quality limousines we expect to meet or exceed any safety regulation which would affect our vehicles. To this end, we request an interpretation to Federal Motor Vehicle Safety Standard (F.M.V.S.S.) = 207, specifically the section addressing folding or hinged seats.

During and after production of 1993 Ford/Lincoln Town Cars, access to the area rearward of the front seat is limited due to the inclusion of a privacy panel installed to separate the passenger compartment from the drivers compartment. To allow ourselves and our customers access to the area between the front of the panel and the back of the front seat (containing auxiliary fuse panels and relays), we wish to modify the hinge assembly controlling forward and reclining movement of the seat. As constructed by Ford/Lincoln, the seat hinge is limited in it's forward movement by a metal pin in the hinge assembly. By removal of the pin, the seat would articulate forward to a greater degree, thereby providing access to the area in question. This modification is as provided on two door vehicles to allow passengers access to the rear seating.

No change or modification of the O.E.M. recliner latch is performed by our company. The recliner latch provides for a self locking mechanism (and release) for the articulation of the seat back.

Research by myself of the F.M.V.S.S. standards does not reveal a prohibition to removal of the limiting pin or a forward travel limit to the seat back. Additionally, a phone conversation with Clark Harper of the F.M.V.S.S. staff on 8-17-93 failed to locate a prohibition to this modification.

Please address this matter at your earliest convenience. Should you require further information or engineer drawings, please contact me by phone or FAX.

Phone (417) 831 3535 FAX (417) 831 0834

ID: nht93-6.2

Open

DATE: August 5, 1993

FROM: Bernhard Peer -- President, Peer Enterprises Inc.

TO: John Womack -- Acting Chief Council, Chief Council's Office, NHTSA

TITLE: None

ATTACHMT: Attached to letter dated 10/6/93 from John Womack to Bernhard Peer (A41; VSA 102(3))

TEXT:

Per my conversation with the Department of Transportation in Washington D.C. they have advised I should write to you regarding our needs.

Our company, Peer Enterprises Inc., is the main importer for a product known as a TWIP; a slow moving, battery driven, scooter type vehicle with a maximum top speed of approximately 9 miles per hour (.27kw). Please see attached brochure for full explanation and specification detail. The scooter is very quiet and because it is powered by a rechargeable battery, there is no exhaust thus making it very friendly to the environment. Manufactured In Italy, the TWIP has already been certified in most of the European Countries and is now ready for introduction to the USA. The TWIP Is extremely high quality construction, fully equipped with: brakes-front and rear, foot rests, kick stand, head light, tail light, horn and rear view mirror. The TWIP Is collapsible and can be easily stored for portable transportation.

Our primary market for this product will be recreational use i.e. RV motor homes, boats/yachts, etc. - anyone that can use a storable, portable form of transportation. Another segment of the market is industrial use. The TWIP is used in plants, warehouses, hospitals, etc.; also adequately serving security guards and maintenance personnel in a variety of circumstances.

Throughout Europe the market has been very successfully defined and the product overwhelmingly accepted. We now request your assistance to obtain federal approval and certification for the USA. We ore enclosing copies of certification forms from several of the existing distributing countries for your use. Peer Enterprises Inc. is staffed and fully prepared to begin our distribution business awaiting only your approval. We therefore ask your assistance as quickly as possible. If there is anything we can do to help expedite the process, please advise.

We thank you for your immediate attention to our request and await your response.

(Brochure omitted)

ID: nht93-6.20

Open

DATE: August 18, 1993

FROM: Jack McIntyre -- V.Pres., Tie Tech Inc.

TO: John Womack -- Office of Chief Counsel, NHTSA

TITLE: None

ATTACHMT: Attached to letter dated 11/23/93 from John Womack to Jack McIntyre (A41; Std. 209; Std. 222) and letter dated 9/15/93 from Jack McIntyre to John Womack (OCC-9123)

TEXT:

In January 1993, the National Highway Traffic Safety Administration issued requirements for wheelchair securement systems that are used on school buses. These requirements are included in Federal Motor Vehicle Safety Standard 222. As stated in the comments that were provided to the Proposed Rule, these standards are needed.

In reviewing the final requirements, however, it appears that a particular requirement for the wheelchair securement system was adopted that is inconsistent with the securement systems being manufactured by most wheelchair securement manufacturers. Also, this requirement does not appear to be directly relevant to the crash performance of a wheelchair securement belt. The specific requirement I am referring to appears in S5.4.2, which references the requirements of Type 1 safety belts of FMVSS 209, and requires that the belt webbing be not less than 1.8 inches wide.

There is no apparent need to specify a minimum belt width for wheelchair securement belts as there is for occupant restraint belts. I understand that the belt width requirements for occupant restraint systems is to spread the crash forces over a larger area of the body. There is no such need for securement belts. Currently the industry standard for securement belts is a 1 inch wide belt made from polyester that easily meets the 6,000 pound force requirements of FMVSS 209 and 222. Additionally, the 1 inch wide belts made from polyester have less stretch than the 1.8 inch nylon belts.

Finally, it is noted that 1 inch wide securement belts and related hardware are easier and less cumbersome to connect to a wheelchair, particularly in the tight circumstances that exist on school buses in many instances, than are the 1.8 inch wide belts and their larger pieces of hardware.

Based on the above, I petition to change the requirement that the wheelchair securement belt must be at least 1.8 inches wide. The cost to the wheelchair securement industry to retool for the wider belts would be significant, without any added benefits in terms of safety to occupants of wheelchairs in school buses.

Thank you for your consideration.

ID: nht93-6.21

Open

DATE: August 19, 1993

FROM: Richard A. Wennerberg -- Vice President, Marketing Services, American Gas Association

TO: John Womack -- Acting Chief Counsel, NHTSA

COPYEE: Rich Kolodziej -- A.G.A.; Paul Duvall -- Brunswick

TITLE: None

ATTACHMT: Attached to letter dated 10/22/93 from John Womack to Richard A. Wennerberg (A41; Std. 303)

TEXT:

On behalf of the American Gas Association (A.G.A), I would like to express our appreciation to the persons at the National Highway Traffic Safety Administration (NHTSA) responsible for convening the recent meeting to discuss the status of the compressed natural gas cylinder rulemaking. We are hopeful that the meeting and the planned follow-up actions will result in the speedy resolution of this issue. The implementation of a final rule will serve to allay some of the concerns that currently are impeding the marketability of natural gas vehicles.

As stated at the meeting on Monday, the lack of standards is a problem for vendors and manufacturers that are seeking to use or sell natural gas cylinders. Some state and local officials are hesitant at this time to commit to natural gas vehicles due to the lack of acceptable federal standards. There appears to a perception by some state officials that the existing Department of Transportation regulations (those adopted by the Research Special Programs Administration) apply to (Vehicular cylinders i.e., cylinders designed to store a vehicle's supply of fuel. Many state planning agencies and federal authorities are in the process of finalizing or implementing alternative fuel programs. As a result, equipment manufacturers are working aggressively to meet the expected demand for alternative fuel vehicles. We are concerned that officials will overlook the attractive advantages of natural gas vehicles due to the misperception that our products do not meet existing standards.

With regard to this misperception, A.G.A. would like to request that your office write a short letter clarifying this issue. One of our staff attorneys has spoken with Mr. Woodford regarding our concerns. Mr. Woodford recommended that we should forward our request to your office. Such a clarification could simply explain that the existing standards were not designed with vehicles in mind and that NHTSA is currently in the process of developing federal standards for compressed natural gas cylinders.

If the agency feels more comfortable sending the letter to state officials instead of to myself, A.G.A. would be happy to supply NHTSA with the relevant names and addresses. We would ask that A.G.A. be copied on any such letter. Thank you for your attention to this matter. I look forward to hearing from you.

ID: nht93-6.22

Open

DATE: 08/26/93

FROM: John Womack -- Acting Chief Counsel, NHTSA; Signature by Kenneth N. Weinstein

TO: Kenneth G. Koop -- Risk Control Representative, Intergovernmental Risk Management Agency

TITLE: None

ATTACHMT: Attached to letter dated 6/3/93 from Kenneth G. Koop to John Wolmack (Womack) (OCC 8768)

TEXT:

This responds to your letter of June 3, 1993, requesting information on a modification for police vehicles. You seek permission to remove the passenger seat and passenger air bag from police vehicles, and to permanently mount equipment where the passenger seat had been. As explained below, this type of modification would be permitted under Federal law.

By way of background information, the National Highway Traffic Safety Administration (NHTSA) is authorized under the National Traffic and Motor Vehicle Safety Act (15 U.S.C. S1381 et seq.; Safety Act) to issue Federal motor vehicle safety standards that apply to the manufacture and sale of new motor vehicles and new items of motor vehicle equipment. Section 108(a)(1)(A) of the Safety Act (15 U.S.C. 1397(a)(1)(A)) prohibits any person from manufacturing, introducing into commerce, selling, or importing any new motor vehicle or item of motor vehicle equipment unless the vehicle or equipment item is in conformity with all applicable safety standards. Among the standards that NHTSA has issued are two which could be affected by the modification you propose: Standard No. 207, Seating Systems, (49 CFR S571.207), which requires each vehicle to have an occupant seat for the driver and sets strength and other performance requirements for all occupant seats in a vehicle, and Standard No. 208, Occupant Crash Protection (49 CFR S571.208), which specifies occupant protection requirements based on vehicle type and seating position within the vehicle.

If your contemplated modification is made before a vehicle's first purchase for purposes other than resale, the person who modifies the vehicle would be an alterer of a previously certified motor vehicle and would be required to certify that, as altered, the vehicle continues to comply with all of the safety standards affected by the alteration (See 49 CFR Part 567.7).

Once the front passenger seat is removed, Standard No. 208 would not require an air bag for that location since an occupant restraint is only required if a seating position is there.

After a vehicle's first purchase for purposes other than resale, i.e., the first retail sale of the vehicle, the presence and condition of devices or elements of design installed in the vehicle under applicable safety standards is affected by section 108(a)(2)(A) of the Safety Act (15 U.S.C. 1397(a)(2)(A)). That section provides:

No manufacturer, distributor, dealer, or motor vehicle repair business shall knowingly render inoperative, in whole or in part, any device or element of design installed on or in a motor vehicle ... in compliance with an applicable Federal motor vehicle safety standard.

NHTSA does not consider there to be a violation of the "render inoperative" prohibition with respect to occupant restraints if, after one of the named types of commercial entities modifies a used vehicle, the vehicle is equipped with occupant restraints at every seating position and those occupant restraints are the type that Standard No. 208 permitted when the vehicle was new. Again, if a seating position were removed from a used vehicle, the removal of the air bag as well would not violate the render inoperative provision because the presence of the air bag was originally premised on the presence of the seating position. However, the render inoperative prohibition would be violated if removal of the passenger side air bag caused the driver side air bag to malfunction or deploy. I would like to caution you to contact the vehicle manufacturer concerning the proper procedure for any air bag removal. Removing an air bag could cause it to deploy and injure the mechanic. In addition, removal of the passenger side air bag could cause the driver side air bag to malfunction or deploy.

You should also note that the "render inoperative" prohibition applies only to the named entities. Therefore, vehicle owners are permitted to make any modifications to their vehicles, even if the vehicle would no longer comply with applicable safety standards. However, we encourage vehicle owners not to tamper with the occupant protection systems installed in their vehicles.

You should be aware that S4.5.2 of Standard No. 208 requires a readiness indicator for an air bag system which is clearly visible from the driver's seating position. NHTSA believes that most manufacturers install one indicator for both air bags. After the passenger side air bag is removed, this indicator would show that the air bag system is not operative. NHTSA is concerned that the driver would then be unable to tell if the driver side air bag were functional. Therefore, I urge you to contact the manufacturer to determine how the indicator could be altered to monitor the readiness of the driver side air bag only.

As a final caution, I note that the purpose of the "render inoperative" provision is to ensure, to the degree possible, current and subsequent owners and users of the vehicle are not deprived of the maximum protection afforded by the vehicle as newly manufactured. Your letter states that you will "place permanently mounted policing equipment in the seat's place." It is our understanding that it is common for police cars to be sold after a few years of service. Presumably any police equipment would be removed before such a sale. I urge you to either reinstall the passenger seat and occupant restraint or to make these modifications in a way that will discourage reinstallation of the passenger seat, so that future users of the vehicle are unlikely to use a seating position that does not have any occupant restraint.

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

ID: nht93-6.23

Open

DATE: August 30, 1993

FROM: Hal Sullivan

TO: David Elias -- Esq., Chief Counsel, NHTSA

TITLE: Re: Code Of Federal Regulations; 49 CFR, @ 567.5 And Any Relevant Related Codes.

ATTACHMT: Attached To Letter Dated 6/8/94 From John Womack To Mr. And Mrs. Hal Sullivan (A42; Part 567; VSA 108(a)(1)(E)

TEXT: Dear David,

This letter will serve to confirm our request that you proceed to render your opinion on the definition the phrase "rated cargo load" contained in @ 567.5, entitled "GROSS. VEHICLE WEIGHT RATING".

As you will please recall, we purchased a 1992 Pace Arrow motor home from Fleetwood Motor Homes of California Inc., and when filled with fresh water, 6 gallons of water in the hot water heater, 3 gallons of water and chemical in each of the holding tanks and equipped with the identical factory optional HWH hydraulic jacks, the motor home is already over the maximum GVWR for the chassis. Our vehicle had a serious chassis failure at 4000 miles. The dealers routinely do everything but disclose the seriously inadequate carrying capacity associated with many of the motor homes manufactured by Fleetwood.

Please also direct me as to how 49 CFR is enforced as against a manufacturer who violates the code, i.e. are there fines, civil penalties etc?

Your prompt attention is most appreciated, as we are currently involved in a civil action against Fleetwood.

Sincerely,

ID: nht93-6.24

Open

DATE: August 31, 1993

FROM: Joey Ferrari -- Director Technical Sales, Grant Products

TO: Office of the Chief Counsel, NHTSA

TITLE: None

ATTACHMT: Attached to letter dated 10/6/93 from John Womack to Joey Ferrari (A41; Std. 208; VSA 108(a)(2)(A))

TEXT:

I am writing this to you at the advice of Mr. Jettner.

Grant Products is an automotive parts manufacturer and our main product line is aftermarket steering wheels. With the arrival of the air bag, we have been careful to specifically state that our products are not applicable to any air bag equipped vehicle since we do not manufacture an air bag.

We receive many inquiries from both repair shops and private individuals asking if our products will fit their vehicles originally air bag equipped. Some say they don't want or like the air bag, but most calls are after an accident where the bag has deployed. Upon finding out how expensive it is to replace the air bag system (especially if they don't have insurance) people call us.

My questions are asked relating to our possible liability exposure if someone uses our products (without an air bag) in place of the factory wheel that was originally equipped with an air bag system.

1. If a vehicle is originally equipped with an air bag, must it have an operable air bag system for its entire useful life?

2. If a repair shop removes an operating air bag system and replaces it with a Grant product not having an air bag: A. Is this legal or illegal?

B. If illegal which party is liable?

3. If a private individual removes an operating air bag system and replaces it with a Grant product not having an air bag: A. Is this legal or illegal?

B. If illegal which party is liable?

4. After an accident in which the air bag was deployed, must a repair shop or individual replace the air bag and/or system so that it is again operable as originally equipped?

5. After an accident in which the air bag was deployed, can a repair shop or individual replace the air bag with a Grant product not having an air bag?

6. Upon resale of a vehicle from the first owner (individual) to a second or subsequent owner, must the vehicle have an operable air bag system as originally equipped?

7. If we have a potential liability exposure for someone suing our products to replace an original air bag, what do we need to do to limit this exposure?

I look forward to hearing your responses to my questions. Should you have any queries please do not hesitate to contact me.

ID: nht93-6.25

Open

DATE: August 31, 1993

FROM: Ray Paradis -- Manufacturing Manager, Dakota Mfg. Co., Inc.

TO: Pat Boyd -- NHTSA

TITLE: None

ATTACHMT: Attached to letter dated 11/16/93 from John Womack to Ray Paradis (A41; Std. 108)

TEXT:

Per our conversation concerning the reflective tape I have enclosed literature and photos of several of our trailer currently in production.

Questions are as follows:

(1) Deck heights are from 22" TO 39 1/2".

(2) The rear design does not allow for continuous tape all models.

(3) The side extension model has fold-up sides #2.

(4) Does the front require any stripe.

I have numbered the literature and attached photos for reference. I am looking forward to your comments.

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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