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
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ID: nht76-4.29OpenDATE: 10/07/76 FROM: AUTHOR UNAVAILABLE; F. Berndt; NHTSA TO: Pullman Trailmobile TITLE: FMVSS INTERPRETATION TEXT: This responds to Trailmobile's August 13, 1976, question whether a trailer would be considered to be newly manufactured for purposes of compliance with applicable safety standards if it is assembled from all new materials except for axles (axle beams, spindles and brakes, and associated brake drums, wheels, seals, and bearings) from an existing trailer whose identity and ownership would be continued in the reassembled trailer. The answer to this question is yes. The assembly of a trailer entirely from new materials except for the trailer axles does not qualify as a "repair" under NHTSA regulations (49 CFR @ 571.7(f). This regulation states that such trailers will be considered newly manufactured unless, "at a minimum, the trailer running gear assembly (axle(s), wheels, braking, and suspension) is not new . . ." In the case you describe, the suspension would be new. SINCERELY, Pullman Trailmobile August 13, 1976 Office of Chief Counsel National Highway Traffic Safety Administration RE: Used Components in Trailer Manufacturing NHTSA Regulation @ 571.7(f), Effective July 1, 1976 Opinion is requested concerning the extent to which substitution of new components in trailer running gear assemblies taken from existing trailers is permissible under the above regulation which permits the combination of new and used highway trailer components without the re-assembled trailer being considered "newly manufactured". A customer has tendered to Pullman Trailmobile 200 trailer running gear assemblies selected by the customer from its inventory of wrecked and damaged van trailers. The customer proposes to ship the assemblies to a Pullman Trailmobile factory, identified by the serial numbers of the existing trailers from which the running gear assemblies were taken. The customer requests Trailmobile to combine such running gear assemblies with new components to complete re-assembled van trailers which will continue to be used by the customer in its transportation business. The trailer running gear assemblies to be shipped to Pullman Trailmobile will consist of the following components: (a) axle beam including the spindle and brake assembly; (b) complete axle assembly (including brake drums, wheels, oil seals, bearings, etc.). All other components of the trailer running gear assemblies have been adjudged by the customer's maintenance employees to require replacement, consistent with safe maintenance and operation practices. Reference is made to NHTSA's discussion and evaluation of comments upon the proposed regulation published in the July 1, 1976 Federal Register; in particular, to that paragraph reviewing the comments of Firestone Corporation concerning rims and wheels. In that connection, it was stated that "The agency in no way intends to modify safe maintenance and operation practices by its action. Substitution of new components or of use of old components is not advocated or discouraged by this action". NHTSA also reported that "frame attachment components" were excluded from the description of running gear assemblies for fear that persons might reuse damaged attachment hardware. Based upon the foregoing, a favorable opinion is requested that reuse of the above described components of trailer running gear assemblies in combination with sufficient new running gear and other components required to produce re-assembled van trailers does not result in a "newly manufactured" trailer; assuming, of course, that the re-assembled trailer will be used by the owner of the existing trailer which will continue to be identified by its existing serial number. If additional facts or information in connection with the agency's determination is necessary or desirable, please call upon this writer for assistance. Edgar E. Lungren Jr. |
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ID: 77-4.18OpenTYPE: INTERPRETATION-NHTSA DATE: 10/17/77 FROM: AUTHOR UNAVAILABLE; J. J. Levin, Jr.; NHTSA TO: Crane Carrier Company TITLE: FMVSS INTERPRETATION TEXT: This responds to Crane Carrier Corporation's June 8, 1977, question whether the maximum time limits specified by S5.1.1 of Standard No. 121, Air Brake Systems, for build-up of brake system air pressure from 85 to 100 psi includes the time taken to build up air pressure in an accessory reservoir (for an air starter) that is replenished only when the truck is started. The answer to your question is no. Section S5.1.1 is a performance requirement that assures that repeated use of the brakes during vehicle operation will not deplete the available air supply because of insufficient air compressor capacity. The purpose of this requirement only indirectly relates to the initial air pressure build-up that occurs when the vehicle is first started. The agency's existing laboratory procedure for compliance testing provides for fully charging the air brake system (and any accessory reservoirs which charge automatically in the process) before the test is begun. The engine is shut off while brake system air pressure is reduced to a level that permits a subsequent build-up for measurement purposes. In order to properly test vehicles with air starters, the agency is modifying its procedure to keep the engine running throughout the test, so that the air starter reservoir remains fully charged throughout the measurement period. SINCERELY, HEAVY DUTY TRUCK MANUFACTURERS ASSOCIATION June 20, 1977 Frank Berndt Office of the Chief Counsel National Highway Traffic Safety Administration Pursuant to our telephone conversation last Friday, I am pleased to enclose the inquiry we discussed. You suggested that interpretive rulings should be in writing, and I am pleased to respond. F. MURRAY CALLAHAN General Counsel CRANE CARRIER COMPANY June 8, 1977 Heavy Duty Truck Manufacturers Assoc. Attention: F. Murray Callahan, General Counsel Subject: Compliance with Section S5.1.1 of MVSS 121, when vehicles are equipped with air starters. We are seeking an interpretation of Section S5.1.1 due to the following condition occurring on vehicles equipped with air starters. These vehicles require a separate large volume (17,787 C.I.) starter reservoir isolated from the trucks air brake system by means of a pressure protection and check valve which maintains a minimum of 75 psi air pressure in the service brake system. However, after initial start up of truck, which could use up to approximately 50% of starter reservoir capacity, and the truck brake system is built up to 75 psi, the protection valve between the two systems opens, and at this point the total system capacity is equal to the brake reservoir volume plus that of the air start reservoir. When this occurs, it is impossible for us to comply with the time limit specified in Section S5.1.1 due to the extremely large combined volume of the two systems. What we seek interpretation of is if the standard will allow: (1) air start reservoir to be completely refilled as soon as engine is started, (2) draining of air in the service brake reservoirs and then, (3) replenishing the air in the brake reservoir in the time limit specified. This seems to us to satisfy the standard since the standard is only trying to insure of a large enough air compressor to replenish the service brake reservoirs and once the air start system is filled it will have no effect on the brake system operation. If you have any questions concerning this matter, please contact me. Ray Sizemore Engineer cc: KEN LAWRENCE |
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ID: 77-5.17OpenTYPE: INTERPRETATION-NHTSA DATE: 12/29/77 FROM: AUTHOR UNAVAILABLE; J. J. Levin, Jr.; NHTSA TO: Utility Trailer Manufacturing Co. TITLE: FMVSS INTERPRETATION TEXT: This responds to Utility Trailer Manufacturing Company's October 6, 1977, request for confirmation that the criteria for a bulk agricultural commodity trailer contained in S5.6 and S5.8 of Standard No. 121, Air Brake Systems, can be met by a trailer that does not accommodate "slip-in bottom dump" bulk harvest tubs as well as the "deck type" harvest tubs used for tomatoe harvesting. From your description, it is assumed for the purposes of this interpretation that the trailers in question do conform to the criteria in the standard for maximum length and an air line and reservoir arrangement that minimize field damage. The criterion of "skeletal construction that accommodates harvest containers" can be met by a design that accommodates mounting of deck type bulk harvest tubs by means of removable flooring, whether or not the removal of flooring also permits the mounting of "slip-in bottom" bulk harvest tubs. SINCERELY, UTILITY TRAILER MANUFACTURING CO. October 6, 1977 National Highway Safety Administration Attention: Duane Perrin Attached is a copy of a letter sent to our Utility Dealers who have historically sold the agricultural commodity trailer. The letter tells the story. Basically, we find that there are many more trailers required in the tomatoe harvest than any other kind. Thus, the operator wants to avoid the cost of accommodating the slip-in containers which adds plenty to the cost and weight of the trailer - - - and, I find that our competitors are following the rules we have now set. A copy of a letter that stated our position to Fruehauf last May is attached. Obviously, we and Fruehauf now have the same rules. Unless we are off-base, I will assume that you agree with our restrictions. Paul Bennett Chief Engineer ATTACH. To: San Leandro - Bruce Myers Fresno - Lyman Ehrlich Los Angeles - James Pollard Phoenix - Ben Cravens The legal definition of an Agricultural Commodity Trailer with specific exemptions from MVSS 121 is "Trailer designed with a high ground clearance and other special features for use with farm tractors during harvest." Up to the date of this letter Utility has restricted its manufacture of Agricultural Commodity Trailers to a specially designes combination trailer model FS1WC (Semi) and FF2WC (Pull). We now learn many users do not want or need extra expense of a combination trailer that will accommodate a deck mounted harvest tub (tomatoes) as well as the bottom dump can for slip-in body (grapes and fruit) - - - and, that often, a center frame design is preferred to the wide frame design. As a consequence, the following trailer type order will be accepted for trailers qualified as Agricultural Commodity Trailers: 1. Standard Utility combo trailer Models FS1WC & FF2WC, - or - 2. Utility chassis trailer Models FS1W and FF2W (wide frame) or FS1C and FF2C center frame trailers which consider the following special specification: A. Booster mountings to be top mounted on the axles to accommodate the high road bed clearance requirement. B. Omission of all floor material for the purpose of accommodating a customer light weight floor or base support for a deck type harvest tub. C. Trailer lengths may not exceed 27 ft. D. A dealer letter is to accompany each order warranting that a sole and primary use will be in-field with farm type tractor. The dealer, obviously, should protect himself with a similar letter at time of sale. John C. Bennett CC: NHTSA |
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ID: nht75-4.21OpenDATE: 10/17/75 FROM: AUTHOR UNAVAILABLE; R. B. Dyson; NHTSA TO: Tiffin Metal Products TITLE: FMVSS INTERPRETATION TEXT: This is in response to your request for an opinion on the applicability of Federal Motor Vehicle Safety Standard 205 to a road grader intended for use in highway construction. The National Highway Traffic Safety Administration issues safety standards for "motor vehicles." Therefore, our regulations apply to a vehicle and its manufacturer only if the vehicle qualifies as a motor vehicle under the provisions of the National Traffic and Motor Vehicle Safety Act of 1966. Section 102(3) of the Act defines motor vehicle as: any vehicle driven or drawn by mechanical power manufactured primarily for use on the public streets, roads, and highways, except any vehicle operated exclusively on a rail or rails. Thus, a motor vehicle is a vehicle which the manufacturer expects will use public highways as part of its intended function. Tracked and other vehicles incapable of highway travel are not motor vehicles. In addition, vehicles intended and sold solely for off-road use (e.g. aircraft runway vehicles and underground mining vehicles) are not considered vehicles even if operationally capable of highway travel. They would, however, be considered motor vehicles if the manufacturer knew that a substantial proportion of his customers actually would use them on the highway. Just as clearly, vehicles which use the highway on a necessary and recurring basis to move between work sites are motor vehicles. The primary function of some vehicles is of a mobile, work performing nature and as such their manufacturer comtemplates a primary use of the highway. Mobile cranes, drill rigs, and towed equipment such as chippers and pull-type street sweepers are examples in this area. Even if the equipment uses highways infrequently, it is considered a motor vehicle. An exception to this is that occasional use of the highway in the immediate periphery of the work site, as is the case with some farm and construction equipment, would not by itself case a finding that the vehicle is a motor vehicle. The motor vehicles described above generally qualify as trucks or trailers. As such they are subject to several of the motor vehicle safety standards, and the manufacturer must comply with other regulations in Chapter V of Title 49, code of Federal Regulations. There are some vehicles which are excepted from the motor vehicle classification despite their use of the highway. Highway maintenance and construction equipment, lane stripers, self-propelled asphalt pavers, and other vehicles whose maximum speed does not exceed 20 miles per hour and whose abnormal configuration distinguishes them from the traffic flow are not considered motor vehicles. This would appear to include road graders whose maximum speed does not exceed 20 miles per hour, if intended for use in highway construction. From these guidelines you should be able to determine whether a piece of equipment qualifies as a motor vehicle. Please write again if you are unable to make this determination. Yours truly, ATTACH. Tiffin METAL PRODUCTS August 11, 1975 National Highway Traffic Safety Commission Mr. Hunter Dear Mr. Hunter: Per our telephone conversation of August 11, 1975, please forward to me in writing the ruling stating that the Huber Cab for road construction does not have to meet STD 205. Thank you for your attention in this matter. Very truly yours, Joe Steininger -- Inventory Control Manager cc: W. Heddles; M. Smith |
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ID: nht75-4.5OpenDATE: 09/30/75 FROM: AUTHOR UNAVAILABLE; F. Berndt; NHTSA TO: Wesco Truck & Trailer Sales TITLE: FMVSS INTERPRETATION TEXT: This responds to your recent request for a discussion of what constitutes the manufacture of a new trailer when used components from an existing trailer are utilized. As you are aware, a newly-manufactured air-braked trailer must, in all but a few cases, be equipped with an air brake system that conforms to Standard No. 121, Air Brake Systems. The use of new components in combination with used components to assemble a complete vehicle is a common practice in both truck and trailer operations. The National Highway Traffic Safety Administration (NHTSA) has recognized this commercial practice by establishing that the use of a new body on a used "chassis" that has already been certified does not constitute the manufacture of a new vehicle. In contrast, placing a used body on a new chassis that has never been certified as a vehicle has been determined to create a newly-manufactured vehicle that must be certified. This distinction did not present difficulty to trailer manufacturers in the past, when they were only required to meet the lighting requirements of Standard No. 108, Lamps, Reflective Devices, and Associated Equipment. Since implementation of Standard No. 121, however, manufacturers have had to determine whether the particular assembly they undertake contains a used "chassis" which would not be required to meet the air brake standard. As a general matter, the NHTSA has stated that, as a minimum, the running gear (the axles, wheels, suspension, and related components sometimes known as a bogie) and main frame of the existing vehicle must be used to qualify as a used "chassis". However, the many different types of trailer construction make it difficult to determine what constitutes the main frame of some configurations. The NHTSA has concluded that the load-bearing structural member(s) which run the length of the vehicle and support the trailer will be considered to be the "main frame". In the case of monocoque van construction, the trailer side walls which constitute the main load-bearing members through the length of the vehicle must be reused as the main frame in addition to the running gear, or else the rebuilding operation will constitute manufacture of a new vehicle. In the case of container chassis, the box frame that consitutes the main load-bearing member through the length of the vehicle must be reused as the main frame in addition to the running gear, or else the rebuilding operation will constitute manufacture of a new vehicle. In the case of a platform trailer, the main frame members which run the length of the trailer must be reused in addition to the running gear, or else the rebuilding operation will constitute manufacture of a new vehicle. In the case of a tank trailer in which the tank serves the purpose of and replaces frame rails, the tank must be reused as the main frame in addition to the running gear, or else the rebuilding operation will constitute manufacture of a new vehicle. If a separate frame serves as the load-bearing member through the length of the vehicle, the tank could be replaced without the operation constituting the manufacture of a new vehicle. An inner tank may be replaced without certification as a new vehicle if the inner tank does not serve as a main load-bearing member. Modifications of existing trailers to increase or decrease volumetric capacity or vehicle length are generally permitted without recertification. For example, the barrel of a tank trailer may be lengthened in response to the new weight limits without recertification of the vehicle. In closing, it should be noted that Bureau of Motor Carrier regulations may differ on modification or rebuilding of vehicles in interstate commerce. |
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ID: nht95-1.12OpenTYPE: INTERPRETATION-NHTSA DATE: January 5, 1995 FROM: Philip R. Recht -- Chief Counsel, NHTSA TO: Randal Busick -- President, Vehicle Science Corporation TITLE: NONE ATTACHMT: Attached to 10/14/94 letter from Randal Busick to Mary Versailles TEXT: Dear Mr. Busick: This responds to your letter of October 14, 1994, concerning whether a belt design would comply with S7.1.2 of Standard No. 208, Occupant Crash Protection, as amended in a final rule published on August 3, 1994 and effective on September 1, 1997 (59 FR 3 9472). As described in your letter, for this belt design, "the inboard lower FMVSS 210 anchorage is located on the seat frame and thus, as the seat moves fore and aft, the system allows a minimum of two seat belt adjustment positions and the distance be tween the two extreme adjustment positions of the system is more than 5 cm." The August 3 final rule amended Standard No. 208 to improve the fit and increase the comfort of safety belts for a variety of different sized occupants. After the effective date, S7.1.2 will, in pertinent part, read as follows: . . . for each Type 2 seat belt assembly which is required by Standard No. 208 (49 CFR 571.208), the upper anchorage, or the lower anchorage nearest the intersection of the torso belt and the lap belt, shall include a movable component which has a min imum of two adjustment positions. The distance between the geometric center of the movable component at the two extreme adjustment positions shall be not less than five centimeters, measured linearly. As illustrated in the drawing provided with your letter, the inboard anchorage on your seat design is the "the lower anchorage nearest the intersection of the torso belt and the lap belt." It would appear that, under the definition of "seat belt anchorage" in Standard No. 210, Seat Belt Anchorages, the seat would be considered part of the anchorage for your design. Standard No. 210 defines a "seat belt anchorage" as any component, other t han the webbing or straps, involved in transferring seat belt loads to the vehicle structure, including, but not limited to, the attachment hardware, seat frames, seat pedestals, the vehicle structure itself, and any part of the vehicle whose failure cau ses separation of the belt from the vehicle structure. If the seat is part of the anchorage, and if the seat can be adjusted more than 5 cm, measured linearly, it appears that your design will meet the requirement of S7.1.2. While not directly relevant to your question, agency technical staff raised concerns about a device in the drawing enclosed with your letter. The drawing of the system shows a device labeled "Slider Bar" to which the outboard lower end of the seat belt anchorage is attached. While no detail is provided on this device, agency staff are concerned that the device (which appears to function as the lower outboard anchorage) allows the seat belt webbing attachment to slide freely fore and aft longitudinally . If our interpretation of the drawing is correct, this device may prevent the belt system from meeting the occupant protection requirements of Standard No. 208, as well as prevent the anchorage from meeting the anchorage location requirements of S4.3 o f Standard No. 210. Finally, the device may introduce slack in the belt system, preventing the belt from adequately securing a child safety restraint in the seat or providing complete protection to an adult. I hope this information has been helpful. If you have any other questions, please contact Mary Versailles of my staff at this address or by phone at (202) 366-2992. Sincerely, |
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ID: nht94-6.4OpenDATE: May 4, 1994 FROM: Richard Kreutziger -- Executive Director, New York State Distributors Ass'n. (OCC-9945) TO: John Womack -- Acting Chief Counsel, NHTSA TITLE: None ATTACHMT: Attached to letter dated 5/18/94 from John Womack to Richard Kreutziger (A42; Std. 217) TEXT: I have today received the preliminary data from one of the members of NYSBDA the following "fax". As noted in the preliminary data of FMVSS 217 - there are a number of bus body distributors. As also noted these are small business operations and many, many things affect their ability to carry on a successful company profitable operation. Among the "things" is keeping current with the "school bus regulations". In the process of their daily business - the sales and pricing of their vehicles to comply with the requirements of state and federal regulations and standards is very important. I hope you are readily able to realize the point I am trying to make. Quick changes can be very detrimental to that profit factor as well as the individual position of accountability to, not only their customers - but to themselves. As you can readily view from the following "fax" there are certain "conditions" that are acceptable to the manufacturer. We have a special position here in New York State - in that the state regulations exceed the minimum 217 requirements (except for placement of left side emergency door). NYS requires added emergency exits, such as push-out windows and roof hatches based upon capacity of the vehicle. The distributors now are faced here in New York State with a very large unknown factor. To meet the state regulations - for door (L/S/E/D) placement - with folding seat cushion - longer body length - aisle dimension factor at L/S/E/D. Anything that you can furnish and supply to me in a timely fashion - to help my association membership will be greatly appreciated. Attachment CARPENTER MANUFACTURING, INC. BULLETIN NO. 94 - 34 May 3, 1994 TO: All Carpenter Distributors SUBJECT: EMERGENCY EXIT - DELAYED EFFECTIVE DATE NHTSA has postponed enactment of certain parts of FMVSS 217 relative to emergency exits; this change was to have taken effect on May 2, 1994. We were notified by fax on May 2nd that the effective date of the "additional emergency exit" requirement "has been delayed until September 1, 1994." Carpenter will allow its distributors to omit certain options on orders currently in-house at no change order fee, provided the following conditions are met: 1. Order is not on schedule or started at time of receipt of change order; 2. Change order must be received by Friday, 5/13/94; 3. Only options on list below can be deleted or changed; 4. No pre-built orders can be changed; 5. Body length change will require cancellation of current order and resubmission of new order at current pricing. Approved option deletions are: 1. Side emergency door and related components; 2. Flip seats and 4-logged seats; 3. Heater plumbing and routing; 4. Roof hatches and push-out sash not required by state specs. Please note that the rear door hold-open device and reflective striping around the rear door opening will still be required and cannot be deleted. You must keep in mind that orders are being schedule constantly; therefore, it is important to get any change order faxed as soon as possible. You will be notified by Martin Miller as to whether or not your change order can be accepted. You may cover more than one body order on each change order, but all bodies on a given change order must have identical changes. Todd Bontrager Asst. Vice President of Sales School Bus Division |
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ID: 9137Open Mr. Greg Biba Dear Mr. Biba: This responds to your letter asking about safety regulations for a device you would like to sell. The device is an "infant observation mirror" that would allow parents to see their baby's face when the infant restraint is installed in the rear seat of a vehicle. The mirror is on a stand that sits under the infant restraint. By way of background information, 103 of the National Traffic and Motor Vehicle Safety Act ("Safety Act," 15 U.S.C. 1392) authorizes the National Highway Traffic Safety Administration (NHTSA) to issue safety standards for new motor vehicles and new items of motor vehicle equipment. NHTSA does not, however, approve or certify any vehicles or items of equipment. Instead, the Safety Act establishes a "self- certification" process under which each manufacturer is responsible for certifying that its products meet all applicable safety standards. The agency periodically tests vehicles and items of equipment for compliance with the standards. In response to your question, there is currently no Federal motor vehicle safety standard (FMVSS) that directly applies to the product you wish to manufacture. Under the authority of the Safety Act, NHTSA has issued Standard No. 213, Child Restraint Systems, which specifies requirements for child restraint systems used in motor vehicles and aircraft. However, Standard No. 213 applies only to new child restraint systems and not to aftermarket components of a child restraint system, such as an observation mirror. I note, however, that there are other Federal laws that indirectly affect your manufacture and sale of the device. Under the Safety Act, your product is considered to be an item of motor vehicle equipment. As a manufacturer of motor vehicle equipment, you are subject to the requirements in 151-159 of the Safety Act concerning the recall and remedy of products with safety related defects. I have enclosed an information sheet that briefly describes those responsibilities. In the event that you or NHTSA determines that your mirror contains a safety-related defect, you would be responsible for notifying purchasers of the defective equipment and remedying the problem free of charge. In addition, manufacturers, distributors, dealers, and motor vehicle repair businesses are subject to 108(a)(2)(A) of the Safety Act, which states: "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 or item of motor vehicle equipment in compliance with an applicable Federal motor vehicle safety standard ...." It appears unlikely from the nature of your product that it would be placed in vehicles by commercial businesses instead of child restraint owners. However, if your product were to be installed by persons in those categories, they should ensure that its installation does not compromise the safety protection provided by a child restraint system. The prohibition of 108(a)(2)(A) does not apply to the actions of vehicle owners in adding to or otherwise modifying their vehicles or items of motor vehicle equipment. The "render inoperative" prohibition of 108(a)(2)(A) does not apply to the actions of vehicle owners in adding to or otherwise modifying their vehicles or items of motor vehicle equipment. However, NHTSA urges owners not to undertake modifications that would reduce the efficacy of any safety device or element of design. We note that an observation mirror could be struck by an infant in a crash, such as during the "rebound" phase of a frontal impact. In the interest of safety, we suggest you manufacture your mirror so that the risk of head injuries in a crash is minimized. I hope this information is helpful. If you have further questions, please contact Deirdre Fujita of my staff at (202) 366-2992. Sincerely,
John Womack Acting Chief Counsel ref:213 d:10/25/93 |
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ID: nht71-5.34OpenDATE: 12/29/71 FROM: AUTHOR UNAVAILABLE; L. R. Schneider; NHTSA TO: National Committee on Uniform Traffic Laws and Ordinances TITLE: FMVSS INTERPRETATION TEXT: This is in response to your letter of March 3, 1971, concerning the preemption of State vehicle safety standards under section 103(d) of the National Traffic and Motor Vehicle Safety Act, 15 U.S.C. 1592(d). We apologize for the oversight that resulted in not answering the letter until this date. You asked whether State laws requiring that vehicles having two red tail lamps, mounted on the same level and as widely spaced laterally as practicable, are preempted by Motor Vehicle Safety Standard No. 108. In our opinion the answer is no. Standard 108 has many detailed requirements that go beyond those described. Among them, however, are requirements that are substantively identical to your example, though not stated in precisely the same words. We do not interpret section 103(d), which prohibits a State standard "which is not identical to the Federal standard," as requiring the State requirement to be a verbatin copy of its Federal counterparts substantive identity of requirements is sufficient. Also, we do not interpret the statute as requiring the State to adopt all the Federal requirements on a given aspect of performance. It is sufficient that there be a Federal requirement that is substantively identical to the State requirement in question. You also asked about two other requirements, as to which the answer may depend on a more detailed examination of their purposes and the circumstances under which they are enacted. One was the requirement that the light from the tail lamps be visible from a distance of 1,000 feet to the rear; the other was that a vehicle have "at least one tail lamp." The guiding principle that we would apply to this situation is that State requirements that regulate the design of motor vehicles must be identical to the Federal standards, with the qualifications stated above. It was clearly the intent of Congress to provide for uniformity of regulation of the manufacturers in areas where the Federal agency has acted, and they did so by the identity requirement of section 103(d). By contrast, State requirements concerning the condition or adjustment of vehicles generally do not affect the requirements placed on manufacturers, and therefore do not fall within the section 103(d) identity provisions. Applying this principle to your question, if the visibility requirement is construed by the State, and reasonably appears, to be basically a quantitatively stated requirement that the tail lamps be in good working order and not nearly degraded by conditions encountered in use, we would consider the requirement not to be preempted by section 103(d). Similarly, if the one tail lamp requirement is essentially a statement of required minimum working condition (as it appears to be on its face), it would not be preempted. The issue you mentioned concerning the preemption of State laws applicable to vehicles in use was dealt with in detail in(Illegible Word). Tens' letter to you of December 21, 1970. As stated in that letter, our position is that the preemption question does not turn on whether the State law applies to pre-sale or on-the-road vehicles, and we feel that this position was upheld by the clear and compelling implication of the Super Lite cases. In light of the interpretations set forth in this letter, however, we do not believe that the problems of State law and enforcement that you felt may arise will be realized. |
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ID: nht91-2.49OpenDATE: March 26, 1991 FROM: Paul Jackson Rice -- Chief Counsel, NHTSA TO: Jessie M. Flautt TITLE: None ATTACHMT: Attached to letter from Jessie M. Flautt to Steven Kratzske (OCC 5813) TEXT: This responds to your letter to Mr. Steve Kratzke of my staff, requesting that the National Highway Traffic Safety Administration (NHTSA) grant permission to a repair business to modify your motor vehicle. You explained that you are under five feet, two inches and legally blind in one eye. You further explained that, due to the increased size of headrests in recent years, you are unable to locate a 1991 automobile which does not have headrests which impede your field of vision. You wish to arrange to have the size of the headrests in a 1991 automobile reduced. You asked if you could obtain permission from this agency to permit this modification. I hope the following discussion explaining our regulation will be of assistance to you. I would like to begin by clarifying that there is no procedure by which persons petition for and are granted permission from NHTSA to arrange to have a motor vehicle repair business modify their motor vehicle. Repair businesses are permitted to modify vehicles without obtaining permission from NHTSA to do so, but are subject to certain regulatory limits on the type of modifications they may make. In certain limited situations, we have exercised our discretion in enforcing our regulations to provide some allowances to a repair business which cannot conform to our regulations when making modifications to accommodate the special needs of persons with disabilities. Since your situation is among those given special consideration by NHTSA, this letter should provide you with the relief you seek. Our agency is authorized to issue Federal Motor Vehicle Safety Standards (FMVSS) that set performance requirements for new motor vehicles and items of motor vehicle equipment. Manufacturers are required by the National Traffic and Motor Vehicle Safety Act (Safety Act) to certify that their products conform to our safety standards before they can be offered for sale. Manufacturers, distributors, dealers and repair businesses modifying certified vehicles are affected by S108(a)(2)(A) of the Safety Act. It prohibits those businesses from knowingly rendering inoperative any elements of design installed on a vehicle in compliance with a FMVSS. In general, S108(a)(2)(A) would require repair businesses which modify motor vehicles to ensure that they do not remove, disconnect or degrade the performance of safety equipment installed in compliance with an applicable safety standard. Violations of S108(a)(2)(A) are punishable by civil fines up to $1,000 per violation. In situations such as yours where a vehicle must be modified to accommodate the needs of a particular disability, we have been willing to consider any violation of S108(a)(2)(A) a purely technical one justified by public need. I can assure you that NHTSA would not institute enforcement proceedings against a repair business that modifies the headrest on your vehicle to accommodate your condition. We caution, however, that only necessary modifications should be made to the headrest to accommodate your condition and we urge your dealer to modify your vehicle in such a manner that would not degrade from the safety currently provided by your vehicle. Many manufacturers are currently installing headrests in vehicles which exceed the minimum dimensions required by FMVSS No. 202, Head Restraints. I urge you not to have your headrest reduced below these dimensions if it is not necessary for your field of view. If you have further questions or need some additional information in this area, please contact Mary Versailles of my staff at this address or by telephone 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.