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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 14991 - 15000 of 16514
Interpretations Date
 search results table

ID: nht95-7.48

Open

TYPE: INTERPRETATION-NHTSA

DATE: November 28, 1995

FROM: Samuel J. Dubbin -- Chief Counsel, NHTSA

TO: Paul Danner, Esq. -- General Claim Counsel, State Farm Mutual Automobile Insurance Company

TITLE: NONE

ATTACHMT: ATTACHED TO 8/31/95 LETTER FROM Paul Danner to John Womack; Also attached to 8/9/89 letter from Kathleen DeMeter to Madeline Flanagan

TEXT: Dear Mr. Danner:

This is in response to your letter of August 31, 1995, to John Womack, then Acting Chief Counsel of this office, in which you asked for an interpretation of the proper application of Federal odometer disclosure requirements in a situation where an insurer is settling with a vehicle owner on a Claim for theft of the vehicle. Specifically, your letter requests confirmation that the information given to you over the telephone by Mr. Richard Morse, Chief of the Odometer Fraud Staff of the National Highway Traffic Safety Administration (NHTSA) accurately reflects the agency's interpretation of these requirements. For the sake of clarity, I will address the proper procedures to be followed, rather than your letter's rendition of Mr. Morse's advice.

After a vehicle has been stolen, it is of course unavailable to the insured-transferor at the time of title transfer to the insurer. Therefore, when completing the odometer disclosure needed to transfer ownership to the insurance company, the insured-transferor may enter a figure that is his or her "best guess estimate" of the mileage on the odometer at the time the vehicle was stolen, not at the time of transfer to the insurer-transferee. In addition, the odometer disclosure must be dated as of the date of the theft, not as of the date of the transfer to the insurance company. The insured must certify on the odometer disclosure as to whether the odometer reading at the limits of the odometer, as appropriate.

In 1989, the agency issued an interpretation letter stating that this was the proper procedure for a lessee to follow when completing a disclosure to the lessor under 49 CFR @580.7 for a vehicle that had been stolen. That interpretation is equally applicable to the situation in which the owner, rather than the lessee, is making an odometer disclosure for a stolen vehicle. I have enclosed a copy of that interpretation letter fro your information.

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As for the other issues raised in your letter, the following interpretation applies. Once the insured-transferor has completed the odometer disclosure and otherwise complied with requirements of state law for title transfer, the insurer-transferee should then follow the procedures required by the appropriate state law to obtain title to the vehicle. If the vehicle is subsequently recovered and the insurer sells it for salvage, the insurer (which in this transaction will be the transferor) must inspect the vehicle and record the mileage that appears on the odometer at that time. If the insurer has no reason to believe that the mileage on the odometer is not the actual mileage on the vehicle, it must certify on the odometer disclosure that the mileage is the actual mileage on the vehicle. However, if the insurer does have reason to believe that the mileage shown on the odometer is not actual (e.g., if it is less than the mileage shown on the odometer disclosure statement provided to the insurer by the insured when title was transferred to the insurance company), it must so certify on the odometer disclosure statement given to its transferee (the salvage company in your example), and indicate on the statement that there is an odometer discrepancy.

I hope this letter answers your questions about the procedures to be followed by the parties to the transactions you describe. If you have any further questions regarding legal interpretations of the Federal odometer statute and regulations, please contact Eileen Leahy, an attorney on my staff, at the above address or at 202-366-5263.

Sincerely,

ID: nht95-7.49

Open

TYPE: INTERPRETATION-NHTSA

DATE: December 1, 1995

FROM: Samuel J. Dubbin -- Chief Counsel, NHTSA

TO: Edward Mansell -- Chief Engineer, Polar Tank Trailer, Inc.

TITLE: NONE

ATTACHMT: ATTACHED TO 10/10/95 LETTER FROM Edward Mansell to Philip R. Recht (OCC 11305)

TEXT: Dear Mr. Mansell:

This is in reply to your letter of October 10, 1995, to Philip R.Recht, former Chief Counsel of this agency. You seek an interpretation of the conspicuity requirements of Motor Vehicle Safety Standard No. 108 as they apply to some Food Grade Tank Trailers (FGTTs).

Paragraph S5.7.1.4.1(a) requires conspicuity sheeting to be placed "across the full width of the trailer" and "as close as practicable to not less than 375 mm and not more than 1525 mm above the road surface." You indicate that for many trailers the rear bumper is the closest practicable location (approximately 500 mm), but that, on some FGTTs, the load/unload ports are directly above the center portion of the rear bumper. The hot water to which the bumper is exposed degrades the conspicuity sheeting. "Since installation of sheeting subject to frequent hot water run off is not sheeting to be "applied from the extreme ends of the bumper to points no more than 6 inches (150 mm) to the left or right of the area directly below the load/unload area." You also state that "otherwise, the center section of the sheeting should be located on the tank, above the load/unload area."

We believe that this interpretation meets the intent of the standard. Under paragraph S5.7.1.4.1(a), the mounting height of the conspicuity material is based upon practicability, but the application "across the full width of the trailer" is absolute. We interpret "across the full width" to mean that the sheeting must cover the entire width of the vehicle, though not necessarily on the same plane or continuously. Thus, mounting above the load/unload area would be acceptable as a practicable location. Generally, the agency defers to a manufacturer's determination of practicability and will not question it if it is not clearly erroneous. It is not the intent of the standard that manufacturers "redesign trailers to redirect the flow of wash water."

You also believe that, for FGTTs which use a cabinet to enclose the load/unload area, "conspicuity sheeting should be

P2

mounted on the cabinet doors to augment the sheeting on the bumper." Although you did not enclose a drawing of this configuration, it appears acceptable. We assume that, when viewed from the rear, the sheeting has the appearance of extending across the full width of the vehicle, even if the section on the cabinet doors is not on the same plane as that on the bumpers. This, too, is acceptable as a manufacturer's determination of practicability.

Sincerely,

ID: nht95-7.5

Open

TYPE: INTERPRETATION-NHTSA

DATE: September 29, 1995

FROM: John Womack -- Acting Chief Counsel, NHTSA

TO: Joseph J. Smith -- Assistant Chief Maintenance Officer, New York City Transit Authority

TITLE: NONE

ATTACHMT: ATTACHED TO 8/28/95 LETTER FROM JOSEPH J. SMITH TO JOHN WOMACK (OCC 11187)

TEXT: Dear Mr. Smith:

This responds to your inquiry about whether Federal Motor Vehicle Safety Standard No. 302, Flammability of Interior Materials (49 CFR @ 571.302), applies to air conditioning return air filters. You state that these filters are placed on top of the air conditioning evaporator coil and are separated from the bus interior by a louvered panel. You were concerned that the filters may be subject to Standard No. 302 because they may be considered located in the "occupant compartment air space." As explained below, Standard No. 302 does not apply to air conditioning return filters.

By way of background information, 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 does not, however, approve or certify any vehicles or items of equipment. Instead, Congress has established a "self-certification" process under which each manufacturer is responsible for certifying that its products meet all applicable safety standards. Since Standard No. 302 is a vehicle standard, the manufacturer of the vehicle, and not the manufacturer of the individual component, is responsible for certifying compliance with Standard No. 302. The agency periodically tests new vehicles and items of equipment for compliance with the standards.

Standard No. 302 specifies burn resistance requirements for materials used in the occupant compartment of new motor vehicles. Section S4.1 lists the components in vehicle occupant compartments that the vehicle manufacturer must certify as complying with the flammability resistance requirements of paragraph S4.3. The components listed include seat cushions, seat backs, seat belts headlining, convertible tops, arm rests, all trim panels including door, front, rear, and side panels, compartment shelves, head restraints, floor coverings, sun visors, curtains, shades, wheel housing covers, engine compartment covers, and any other interior materials, including padding and crash deployed elements, that are designed to absorb energy on contact by occupants in the event of a crash. Section S4.1 represents a complete listing of all components in new vehicles that must comply with the flammability resistance requirements. Any component not identified in section S4.1 is not subject to those requirements. Therefore, an air conditioning return filter is not subject to those requirements.

Please note that there are other NHTSA requirements that could affect the manufacture and sale of products related to motor vehicles. A motor vehicle or equipment manufacturer incorporating air conditioning filters in its vehicles or equipment would be subject to 49 U.S.C. @@ 30118-30121 to ensure that its vehicles or equipment do not contain any safety related defect. If the manufacturer or NHTSA determines that a safety related defect exists, the manufacturer would be responsible for notifying purchasers of the defective vehicle or equipment and remedying the problem free of charge.

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: nht95-7.50

Open

TYPE: INTERPRETATION-NHTSA

DATE: December 6, 1995

FROM: Jeffrey S. Bakst -- Attorney at Law

TO: Dorothy Nakama -- NHTSA

TITLE: FMVSS Standard 124 "Accelerator Control Systems"/Mitsubishi Motorist Corporation Carburetor

ATTACHMT: 12/28/95 letter from Samuel J. Dubbin to Jeffrey S. Bakst (A44; Redbook 4; Std. 124; VSA 30118)

TEXT: First, I want to inform you we are dealing with a 1988 Dodge Ram 50 truck manufactured by Mitsubishi in Japan, sold in July, 1988. The accident involved occurred in December, 1990. I would like to acquire the National Highway Traffic Safety Administration's opinion on the following questions:

1. If the manufacturer discovers a safety-related problem after the vehicle has been sold to the first purchaser in good faith, does the manufacturer have a legal duty to notify NHTSA and/or the purchaser of this problem?

If yes, what must a manufacturer do for the purchaser?

2. Assume there is a safety-related defect in a brand new carburetor that results in engine overspeed. If the "two sources of energy" are not sufficient to return the throttle to idle position when the driver removes the actuating force from the accelerator control in use, does the carburetor fall to comply with FMVSS 124?

I can represent to you that we took a brand new carburetor and proved that if the secondary throttle plate were to get stuck shut for whatever reason, the primary throttle linkage would bind on the secondary throttle linkage, causing the primary throttle plate to get stuck in a wide open throttle position, which results in engine overspeed. In essence, the two sources of energy on this carburetor are not sufficient to return the throttle to the idle position whenever the driver removes the actuating force from the accelerator control. Mitsubishi's own test on a brand new carburetor proved that if there was a malfunction in the secondary throttle plate, that the two (2) sources of energy were insufficient to return the throttle to idle position.

As I explained, time is truly of the essence. Mr. Bode requested his letter to attach to his Appellate Brief. I now have to respond to his brief, and I must have your report by the end of this year, if I am going to be able to use it in the appeal.

If you need additional information, please let me know.

ID: nht95-7.51

Open

TYPE: INTERPRETATION-NHTSA

DATE: December 8, 1995

FROM: Samuel J. Dubbin -- Chief Counsel, NHTSA

TO: Mr.Peter F. Marthy -- New York State Automobile Dealers

TITLE: NONE

ATTACHMT: 9/19/95 letter from John Womack to David Seagren

TEXT: This is in response to your letter requesting the Chief Counsel of the National Highway Traffic Safety Administration (NHTSA) to explain the proper procedure to be followed in completing an odometer disclosure for a vehicle whose odometer had been previously been replaced and which has a sticker affixed to the inside left door jamb stating the actual mileage at the time the odometer was replaced. Specifically, you ask whether the transferee may enter on the disclosure statement a figure that is the total of the mileage on the new odometer and the mileage shown on the door sticker, and, if so whether the transferor can then certify that figure is the actual mileage the vehicle has traveled.

The reason that it is permissible to certify on the odometer disclosure that the total of the figure on the door sticker and the figure on the current odometer reading represents the actual mileage is that the combination of the sticker and the second odometer contains sufficient information from which the transferor can calculate with precision the total actual mileage on the vehicle. Under 49 U.S.C. @ 32704(a)(2), the door sticker must show the mileage at the time the odometer was replaced; and the transferor can ascertain the reading on the current odometer by visual examination. Of course, if the transferor has knowledge that either figure does not represent actual mileage, he or she may not certify that a total of the two figures is the actual mileage.

We consider this situation to be comparable to that in which a transferor converts an odometer registering kilometers to an odometer that registers miles, because in both situations, the transferor is able to arrive at the correct number of miles the vehicle has actually traveled simply by applying a mathematical formula to the numbers showing on the odometer. In a recent interpretation letter, the agency stated that a dealer which had converted a vehicle's odometer from kilometers to miles, and knew the kilometer reading before the conversion, could certify that the odometer reading in miles represented "actual mileage" because the dealer knew the number of kilometers before the change and could be accurately calculate the number of miles by multiplying that figure by 0.62. I have enclosed a copy of that letter for your information.

In answer to the question of whether or not the transferor should have the odometer replaced before the transfer with an odometer set to reflect the total number of miles on the vehicle, NHTSA believes that in the circumstances you describe, the transferor should replace the odometer with one that reflects the total miles the vehicle has travelled. Replacing the odometer with one that shows all the miles the vehicle has traveled on both odometers has the advantage of reducing the possibility that the transferee in this or subsequent transactions would be misled by the number of miles showing on the odometer, or confused by the difference between that figure and the total shown on the title. This approach does require removal of the door sticker to avoid further confusing a subsequent purchaser. However, it is not illegal to remove such a sticker when there is no intent to defraud. 49 U.S.C. @ 32704(b).

The alternative, which the agency believes is not desirable, would be to leave the present odometer in the car set at its present reding, and leave the sticker on the door jamb. The problem with this option is that the sticker does not provide as durable a record of mileage as the odometer. A sticker can fall off, fade or be removed, creating the potential for confusion when the odometer reading is compared with the information on the title. The same confusion is possible even if the sticker is present, because it might easily be overlooked.

I hope the information in this letter is helpful. If you have further questions concerning interpretation of the Federal odometer law and regulations, you may contact Eileen Leahy, an attorney on my staff, either at the above address or by telephone at (202) 366-5263. Other questions concerning the odometer fraud or the Federal odometer disclosure program may be directed to Mr. Richard Morse, Chief of NHTSA's Odometer Fraud Staff, at (202) 366-4761.

(Letter from Peter Marthy to NHTSA is not available.)

ID: nht95-7.52

Open

TYPE: INTERPRETATION-NHTSA

DATE: December 8, 1995

FROM: Samuel J. Dubbin -- Chief Counsel, NHTSA

TO: Edward J. Googins -- Chief of Police, City of South Portland (Maine)

TITLE: NONE

ATTACHMT: 9/29/95 letter from Edward J. Googins to John Womack (occ 11258)

TEXT: This responds to your question whether passenger seat belts must be installed on a 1982 school bus with a gross vehicle weight rating (GVWR) of 20,200 pounds. The answer is no, NHTSA's regulations do not call for the belt systems.

In a telephone conversation with Dorothy Nakama of my staff, you stated that the subject of your letter, a 1982 International - Model # S1700 bus with a GVWR of 20,200 pounds, was manufactured as a school bus.

Federal Motor Vehicle Safety Standard No. 222, School bus passenger seating and crash protection, establishes occupant protection requirements for school bus passenger seating and restraining barriers. Standard No. 222 did not in 1982, and does not now, specify that newly manufactured school buses with a GVWR of 20,200 pounds have passenger seat belt assemblies. Thus, under Standard No. 222, your 1982 school bus need not have seat belt assemblies for passengers.

However, please note that the States are free to require seat belts in large school buses used to transport students. Enclosed is a February 14, 1992 letter to Mr. Michael A. Martin of the Maine Bureau of Highway Safety, addressing the relationship between Federal school bus safety standards and state law. Note that on page two, NHTSA explains that a State may require seat belt installation for school buses procured by the State, as long as Federal compartmentalization requirements are not compromised.

I hope this information is helpful. If you need any further information, please contact Dorothy Nakama of my staff at (202) 366-2992.

ID: nht95-7.53

Open

TYPE: INTERPRETATION-NHTSA

DATE: December 8, 1995

FROM: Samuel J. Dubbin -- Chief Counsel, NHTSA

TO: Alison Vredenburgh -- Vice President Research and Development, Error Analysis, Inc.

TITLE: NONE

ATTACHMT: 9/18/95 letter from Alison Vredenburgh to Kenneth Hardie

TEXT: This is in reply to your letter of September 18, 1995, to Kenneth Hardie of this agency, with respect to the Motorcycle Conspicuity Enhancement System (the "System") described in your letter. You understand "that this system may only be used during daylight hours and may not affect the headlight", and you ask if there are any other regulations of which you should be aware.

We understand that the System is still under development, and that the intent is to offer it both as original and aftermarket equipment. Two Systems will be tested, at a flash rate of 60 to 80 per minute, one at an intensity of 35,000 candlepower, and the other at 50,000 candlepower. One System will have three bulbs, and another, four. Each System will be activated when the headlamp is on. We note that motorcycle headlamps are wired to be activated when the ignition is on because many States require that headlamps be operating at all times.

As you know, each motorcycle must be manufactured and certified to conform to all applicable Federal motor vehicle safety standards, including Standard No. 108 Lamps, Reflective Devices, and Associated Equipment. Standard No. 108 prescribes no requirements for supplemental equipment such as the System. However, additional lighting equipment may not be installed by the manufacturer or dealer before sale if the supplemental equipment impairs the effectiveness of lighting equipment required by Standard No. 108 (paragraph S5.1.3).

You are therefore correct when you say that the System "may not affect the headlamp." One way in which the System could impair the effectiveness of the headlamp is if it continued to operate at a time when the headlamp is required to provide sufficient illumination of the roadway (as you recognize in your comment that "the system may only be used during daylight hours"). You have not described the method by which the System will be deactivated. We believe that this should not be a manual operation, left to the discretion of the motorcycle operator. In establishing the specifications that allow optional installation of modulating headlamp systems for improving the conspicuity of motorcycles, this agency requires that they be equipped with a sensor that will deactivate the modulation when a certain low ambient light level is reached. Also, the modulation rate is regulated to prevent seizures in susceptible individuals. I enclose a copy of paragraph S5.6 of Standard No. 108 which discusses these light levels.

The System must also not impair the effectiveness of the motorcycle's front turn signals. That is to say, it must not mask the signal or detract from its detectability by oncoming drivers. Whether this might occur will depend upon the color and brightness of the System and its proximity to the turn signal lamp.

If a motorcycle manufacturer is satisfied that the installation of the System on its product would be permissible under S5.1.3, then it may certify that the motorcycle conforms to all applicable Federal motor vehicle safety standards. NHTSA will not question a determination of non-impairment unless it appears to be clearly erroneous.

Satisfaction of Federal new vehicle requirements means that the System is acceptable for sale in the aftermarket under Federal regulations. However, supplementary lighting equipment, whether original or aftermarket, that is not specifically covered by Standard No. 108 remains subject to regulation by the States. We note that many States have vehicle equipment and use regulations regarding auxiliary amber flashing lamps, Many States also prohibit blue as a color for lamps, reserving it for police, fire, and emergency vehicles. We are unable to advise you on the specifics of State laws, and urge you to consult the American Association of Motor Vehicle Administrators, 4600 Wilson Boulevard, Arlington, Va. 22203.

If you have any further questions, you may refer them to Taylor Vinson of this Office (202-366-5263).

ID: nht95-7.54

Open

TYPE: INTERPRETATION-NHTSA

DATE: December 8, 1995

FROM: Samuel J. Dubbin -- Chief Counsel, NHTSA

TO: Ken Van Sciver -- Sciver Corporation

TITLE: NONE

ATTACHMT: 10/3/95 letter from Ken Van Sciver to NHTSA Chief Counsel (OCC 11293)

TEXT: This responds to your letter of October 3, 1995 to this office requesting information on any safety standards applicable to the Auto Bib, a new product you are developing and marketing. From the promotional material you furnished with your letter, your Auto Bib can be described as a portable cover, of Naugahyde fabric, that clips between the window and door molding of a vehicle's door. The Auto Bib unrolls downward to cover the door, and is intended to protect the door's upholstery from damage caused by children, pets, and the sun.

By way of background information, the National Highway Traffic Safety Administration (NHTSA) has the statutory authority to issue Federal motor vehicle safety standards (FMVSS) applicable to new motor vehicles and new items of motor vehicle. Federal law establishes a self-certification system under which motor vehicle and equipment manufacturers themselves certify that their products comply with all applicable FMVSSs. NHTSA enforces compliance with the standards by randomly purchasing and testing motor vehicles and equipment. NHTSA also investigates safety-related defects. If a vehicle or item of equipment is found not to comply with applicable standards or is found to have a safety defect, the manufacturer is responsible for remedying the noncompliance or defect at no charge to the customer. NHTSA neither tests, approves, disapproves, endorses, or grants clearances for products prior to their introduction into the retail market.

Turning now to the Auto Bib, NHTSA would classify it as an item of motor vehicle equipment, defined in 49 U.S. Code (U.S.C.), @ 30102(7)(B) as any "part or component manufactured or sold for replacement or improvement of a system, part, or component, or as an accessory or addition to a motor vehicle." Specifically, the Auto Bib is an accessory if it meets two tests:

a. A substantial portion of its expected uses are related to the operation or maintenance of motor vehicles; and

b. It is purchased or otherwise acquired, and principally used, by ordinary users of motor vehicles.

After reviewing the product literature you enclosed with your letter, we conclude that the Auto Bib is an accessory. The Auto Bib was designed and is being marketed with the expectation that a substantial portion of its expected use will be in motor vehicles. Even its name indicates its intended purpose. Secondly, the promotional literature makes it clear that the Auto Bib is intended to be purchased and principally used by ordinary users of motor vehicles, as distinguished from professional vehicle repair businesses, since its stated purpose is to preserve motor vehicle upholstery from damage by children, pets, and the sun.

While the Auto Bib is a motor vehicle accessory, NHTSA has not issued any FMVSSs establishing performance standards applicable to this product. However, you as the manufacturer are subject to the requirements of 49 U.S.C. @@ 30116 - 30121 which set forth the recall and remedy procedures for products with defects related to motor vehicle safety. As noted earlier, in the event that you or NHTSA determines that the product contains a safety-related defect, you would be responsible for notifying purchasers of the defective equipment and for remedying the problem free of charge.

You asked about state or local requirements that may apply to your product. NHTSA has no information on such requirements. You may, however, be able to obtain some relevant information in that regard from:

Automotive Manufacturers Equipment Compliance Agency, Inc. 1090 Vermont Avenue, N.W., Suite 1200 Washington, DC 20005 (202) 898-0145; Fax (202) 898-0148

I hope this information is helpful to you. Should you have any further questions or need any additional information, please feel free to contact Mr. Myers of my staff at this address or at (202) 366-2992.

ID: nht95-7.55

Open

TYPE: INTERPRETATION-NHTSA

DATE: December 8, 1995

FROM: Samuel J. Dubbin -- Chief Counsel, NHTSA

TO: Patrick Holmes

TITLE: NONE

ATTACHMT: 10/01/95 letter (est) from Patrick Holmes to whom it may concern (occ 11357)

TEXT: This responds to your request for an interpretation whether, if you manufacture a motorcycle helmet for personal use, and ensure that your helmet meets Federal Motor Vehicle Safety Standard (FMVSS) No. 218 Motorcycle helmets, you may certify the helmet. Subject to qualifications explained below, the answer is yes.

NHTSA is authorized under 49 U.S.C. Chapter 301 Motor Vehicle Safety to issue FMVSSs for new motor vehicles and new items of motor vehicle equipment. Among the FMVSSs is Standard No. 218. In 49 U.S.C. section 30115, a self-certification system is established whereby the vehicle or equipment manufacturer is responsible for exercising "reasonable care" in certifying the product will, if tested as specified in the applicable FMVSSs, meet the safety requirements in the standards applicable to the product. Section 30115 states: "A person may not issue the certificate if, in exercising reasonable care, the person has reason to know the certificate is false or misleading in a material respect."

I have enclosed an information sheet that briefly describes the responsibilities for manufacturers of new vehicles and new items of motor vehicle equipment. Please note the discussion on page two concerning manufacturers' responsibilities to ensure that their products are free of safety-related defects. In addition, as noted on page two, Part 566 of our regulations requires each manufacturer of motor vehicle equipment to which an FMVSS applies (e.g., motorcycle helmets) to submit identifying information to NHTSA, with a description of the items they produce. I have enclosed a copy of Part 566 and of Standard No. 218 for your information.

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

Enclosures omitted.

ID: nht95-7.56

Open

TYPE: INTERPRETATION-NHTSA

DATE: December 11, 1995

FROM: Samuel J. Dubbin -- Chief Counsel, NHTSA

TO: Dorothy Jean Arnold, -- M.D.

TITLE: NONE

ATTACHMT: 9/01/95 (est.) letter from Dorothy Jean Arnold, M.D., to Safety Administration

TEXT: This responds to your letter asking whether the air bags in your car can be disconnected. You explained that you are physically impaired by the effects of osteomyelitis, a disease of the bones; cannot use a seatbelt with comfort; and were "granted dispensation from such usage several years ago." In a telephone conversation with Richard Reed of this agency, you indicated that you are 74 years old 45 feets three inches tall, and must sit close to the steering wheel because of your medical condition.

As explained below, our answer is that NHTSA will not institute enforcement proceedings against a repair business that disconnects an air bag on your vehicle to accommodate your condition.

Standard No. 208, Occupant Crash Protect [Illegible Word] requires that cars be equipped with automatic crash protection at the front outboard seating positions. The air bags in your car were installed as one means of complying with that requirement. The removal or deactivaxion of one of those air bags by a vehicle dealer is governed by a provision of Federal law, 49 U.S.C. @ 30122. The section provides that provi

A manufacturer, distributor, dealer, or motor vehicle repair business may not knowingly make inoperative any part of a device or element of design installed on or in a motor vehicle or motor vehicle equipment in compliance with an applicable motor vehicle safety standard.

However, in limited situations in which a vehicle must be modified to accommodate the needs of a person with a particular disability or a person's special medical needs, NHTSA has in the past stated that it would consider violations of the "make inoperative" prohibition as purely technical ones justified by public need, and that it would not institute enforcement proceedings.

I would like to caution you that both safety belts and air bags are very important items of safety equipment. Safety belts are the primary means of occupants restraint, and work in all types of crashes. NHTSA estimates that in 1994, safety belts saved almost 9,200 lives and prevented more than 211,000 moderate to critical injuries. The combination of wearing safety belts and having an air bag installed at a seating position provides vehicle occupants with maximum safety protection in all types of crashes. Also, air bags are designed to offer some protection even when safety belts are not used. Since 1987, air bags are estimated to have saved 911 lives.

NHTSA strongly encourages vehicle occupants to wear their safety belts, since we are concerned about the much higher safety risk faced by unbelted occupants. We understand, however, that you cannot wear your safety belt for medical reasons, and that you are concerned about a possible safety risk from the air bag in such a situation.

While air bags have an impressive overall performance record and are designed to provide some protection even for unbelted occupants, NHTSA has become aware of situations in which current air bags have undesired side effects. These include situations in which an air bag appears to have contributed to serious injuries and even death to vehicle occupants, in minor-to-moderate severity crashes. Information indicates that an air bag might pose a risk of serious injury to unrestrained small statured and/or older people, in particular. I note that NHTSA has recently issued a request for comments (copy enclosed) concerning the agency's actions to minimize the adverse side effects of air bags and to invite the public to share information and views with the agency.

Since your disability prevents you from wearing your safety belt, and given your age and size, the disability places you in a situation where there may be a risk of serious injury from the air bag. While this particular risk can be addressed by disconnecting the air bag, there are trade-offs: Disconnecting the air bag subjects you to a higher risk in crashes, especially higher-speed crashes, where the air bag would provide protection. We urge you to carefully weigh the trade-offs in making your decision.

If you decide that the risk to you from the air bag offsets the potentially life-saving benefits of the air bag, and you wish to have your air bag deactivated, we would regard the deactivation a purely technical violation of the "make inoperative" prohibition justified by public need. Accordingly, we would not institute enforcement proceedings against any person listed in section 30122 who deactivated the air bag. I would recommend that the manufacturer of the vehicle and/or air bag be consulted on the safest way to disconnect the air bag. I also note that the air bag should only be disconnected from a position where you would be seated. In addition, I strongly encourage you to ensure that every person in your vehicle who can use his or her safety belt does so.

I want to add a caution. The purpose of the "make inoperative" prohibition is to ensure, to the greatest degree possible, current and subsequent owners and users of your vehicle are not deprived of the maximum protection afforded by the vehicle as newly manufactured. Accordingly, if you were to sell your vehicle later, we urge that the air bag be reactivated for the subsequent driver.

I hope that this letter resolves your problem. If you have any other questions, please contact Edward Glancy of my staff at this address or by phone at (202) 366-2992.

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.