NHTSA Interpretation File Search
Overview
NHTSA's Chief Counsel interprets the statutes that the agency administers and the standards and regulations that it issues. Members of the public may submit requests for interpretation, and the Chief Counsel will respond with a letter of interpretation. These interpretation letters look at the particular facts presented in the question and explain the agency’s opinion on how the law applies given those facts. These letters of interpretation are guidance documents. They do not have the force and effect of law and are not meant to bind the public in any way. They are intended only to provide information to the public regarding existing requirements under the law or agency policies.
Understanding NHTSA’s Online Interpretation Files
NHTSA makes its letters of interpretation available to the public on this webpage.
An interpretation letter represents the opinion of the Chief Counsel based on the facts of individual cases at the time the letter was written. While these letters may be helpful in determining how the agency might answer a question that another person has if that question is similar to a previously considered question, do not assume that a prior interpretation will necessarily apply to your situation.
- Your facts may be sufficiently different from those presented in prior interpretations, such that the agency's answer to you might be different from the answer in the prior interpretation letter;
- Your situation may be completely new to the agency and not addressed in an existing interpretation letter;
- The agency's safety standards or regulations may have changed since the prior interpretation letter was written so that the agency's prior interpretation no longer applies; or
- Some combination of the above, or other, factors.
Searching NHTSA’s Online Interpretation Files
Before beginning a search, it’s important to understand how this online search works. Below we provide some examples of searches you can run. In some cases, the search results may include words similar to what you searched because it utilizes a fuzzy search algorithm.
Single word search
Example: car
Result: Any document containing that word.
Multiple word search
Example: car seat requirements
Result: Any document containing any of these words.
Connector word search
Example: car AND seat AND requirements
Result: Any document containing all of these words.
Note: Search operators such as AND or OR must be in all capital letters.
Phrase in double quotes
Example: "headlamp function"
Result: Any document with that phrase.
Conjunctive search
Example: functionally AND minima
Result: Any document with both of those words.
Wildcard
Example: headl*
Result: Any document with a word beginning with those letters (e.g., headlamp, headlight, headlamps).
Example: no*compl*
Result: Any document beginning with the letters “no” followed by the letters “compl” (e.g., noncompliance, non-complying).
Not
Example: headlamp NOT crash
Result: Any document containing the word “headlamp” and not the word “crash.”
Complex searches
You can combine search operators to write more targeted searches.
Note: The database does not currently support phrase searches with wildcards (e.g., “make* inoperative”).
Example: Headl* AND (supplement* OR auxiliary OR impair*)
Result: Any document containing words that are variants of “headlamp” (headlamp, headlights, etc.) and also containing a variant of “supplement” (supplement, supplemental, etc.) or “impair” (impair, impairment, etc.) or the word “auxiliary.”
Search Tool
NHTSA's Interpretation Files Search
Interpretations | Date |
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search results table | |
ID: Unassembled_motorcyclesOpenMr. Kevin Alsop Dear Mr. Alsop: This responds to your request for an interpretation of how regulations of the National Highway Traffic Safety Administration (NHTSA) would apply to the manufacture of complete, unassembled motorcycles. As explained below, the agency would treat such a vehicle, regardless of the state of assembly, as a motorcycle for the purpose of our regulations. In your letter and in a telephone conversation with Mr. Eric Stas of my staff, you stated that your company, Big Bear Choppers Inc. (Big Bear), manufactures and sells motorcycle frames and complete, unassembled motorcycles. You further stated that the complete, unassembled motorcycles comply with all applicable Federal motor vehicle safety standards. You also stated that the frame of each complete, unassembled motorcycle is assigned a VIN, presumably that complies with our regulations. You then asked if we require the assignment of a VIN to complete, unassembled motorcycles such as those manufactured by Big Bear. By way of background, the National Highway Traffic Safety Administration (NHTSA) has authority to establish regulations for motor vehicles and motor vehicle equipment (see 49 U.S.C. Chapter 301). The statutory definition of "motor vehicle" states, in part, that a "motor vehicle" is a vehicle that is "driven by mechanical power" (49 U.S.C. 30102(a)(6)). If an unassembled vehicle were sold with all of the parts needed to produce a completed vehicle, including the power source, we would treat the unassembled vehicle as a motor vehicle for the purpose of our regulations. See letters to Christopher Banner, dated July 9, 1993, and Ron Dawson, dated March 29, 1999 (copies enclosed). Part 565 of our regulations specifies the format, content and physical requirements for a VIN and its installation to simplify vehicle identification information retrieval and to increase the accuracy and efficiency of vehicle recall campaigns (49 CFR Part 565). This Part is applicable to motorcycles. Therefore, the complete, unassembled motorcycle would be required to comply with vehicle identification number (VIN) requirements.
Finally, your letter asked a series of questions regarding the issuance of manufacturer statements of origin (MSO), the legality of registering an unassembled vehicle, and the issuance of a bill of sale. MSO, vehicle registration, and bills of sale are matters of State law. Our regulations do not govern these issues. I hope this information is helpful. If you have any further questions, please call Mr. Chris Calamita of my staff at (202) 366-2992. Sincerely, Jacqueline Glassman Enclosures |
2005 |
ID: Underwood.1OpenMr. Glenn Underwood Dear Mr. Underwood: This responds to your September 29, 2004, letter in which you requested an interpretation of Federal Motor Vehicle Safety Standard (FMVSS) No. 205, Glazing Materials (49 CFR 571.205). Specifically, you asked about the requirements for marking glazing with an AS1 symbol, which signifies the point above or below which the glazing has light transmissibility greater than or equal to 70 percent. We are pleased to have the opportunity to answer your questions related to our regulations. By way of background, the National Highway Traffic Safety Administration (NHTSA) is authorized to issue FMVSSs that set performance requirements for new motor vehicles and items of motor vehicle equipment. One of those standards is FMVSS No. 205, which specifies performance requirements for various types of glazing. FMVSS No. 205 incorporates by reference the American National Standard Institutes Safety Code for Safety Glazing Materials for Glazing Motor Vehicles Operating on Land Highways Standard ANSI Z26.1. Accordingly, prior to sale, a manufacturer must certify compliance of its product with the requirements of FMVSS No. 205, including those requirements incorporated from ANSI Z26.1. However, as your letter points out, NHTSA is in the process of modifying the regulatory requirements under FMVSS No. 205, by shifting from the currently referenced 1977 version of ANSI Z26.1 (supplemented by Z26.1a-1980) to the 1996 version of that ANSI standard. A final rule to effect this change was issued on July 25, 2003 (68 FR 43964). However, subsequent notices were issued extending the compliance date for the final rule, most recently to September 1, 2006 (see 69 FR 51188 (August 18, 2004)). As part of the final rule, the paragraph S3.1, Application, was modified to make the standard apply to both vehicles and equipment; accordingly, once in effect, both vehicle manufacturers and glazing manufacturers will be required to certify that their products meet the requirements of FMVSS No. 205. As your letter correctly points out, the 1996 version of ANSI Z26.1 requires a slightly different symbol for marking AS1 glazing than did the earlier versions. Under the earlier versions, that glazing would be marked as A↓S1, but under the 1996 version, that glazing would be marked as AS↓1. (Some glazing also may have portions requiring a similar mark with an arrow turned upwards, but the change in sequencing of the letters and symbol would be the same. ) Beginning on the compliance date of September 1, 2006, glazing manufacturers must mark glazing covered by the above-discussed requirement with the AS1 symbol that meets the specifications of the 1996 version of ANSI Z26.1. However, prior to that time, glazing manufacturers may produce and certify glazing with the AS1 symbol that meets the specifications of the 1977 version of ANSI Z26.1 (supplemented by Z26.1a-1980). Similarly, on September 1, 2006, vehicle manufacturers must certify that their vehicles, including installed glazing, meet the new requirements. As a practical matter, during the period immediately preceding September 1, 2006, glazing could be manufactured and certified by the glazing manufacturer under the older version of ANSI Z26.1 but be held in inventory beyond that date, and as a result, a vehicle manufacturer would not be able to install such glazing in a vehicle because the newer versions of ANSI Z26.1 then would be in effect. We expect that this would be a one-time problem of brief duration. However, the agency will consider this issue in our response to petitions for reconsideration of the July 25, 2003 final rule, since several petitions raised the issue of the effective date of the final rule. Nevertheless, we believe that the final rule itself provides a solution to the concern you have identified. As noted in the July 25, 2003 final rule (see 68 FR 43964, 43970) and in paragraph S3.1 of the August 18, 2004 final rule (see 60 FR 51188, 51191), for motor vehicles and glazing equipment manufactured before September 1, 2006, a manufacturer may, at its option, comply with the revised standard (i.e. , using the 1996 version of ANSI Z26.1) instead of the current version of FMVSS No. 205 (i.e. , using the 1977 version of ANSI Z26.1 supplemented by Z26.1a-1980). We believe that this provision for voluntary early compliance would allow you to resolve any concerns you or your customers might have regarding appropriate marking with the AS1 symbol during this period of transition. If you have any further questions, please feel free to contact Eric Stas of my staff at this address or by telephone at (202) 366-2992. Sincerely, Jacqueline Glassman ref:205 |
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ID: unimog.ztvOpenMr. James Osse Dear Mr. Osse: This is in reply to your letter of January 19, 1999, regarding your wish to import a 1981 Mercedes-Benz Unimog U1300L truck. You ask permission to import it as an off-road vehicle, citing agency interpretation letters to support your request. Under the laws that we administer, a "motor vehicle" that must comply with all applicable Federal motor vehicle safety standards is one that has been "manufactured primarily for use on the public streets, roads, and highways" (49 U.S.C. 30102(a)(6)). The determination of whether a specific vehicle is a "motor vehicle" is initially made by a manufacturer wishing to sell its vehicle in the American market, who may seek advice from us in making its determination. In 1972, Mercedes-Benz asked us our views regarding a line of Unimogs that it wished to import for agricultural use. We informed it on March 9, 1972, that its Unimog was not a "motor vehicle," and, on February 7, 1984, confirmed that interpretation to the company on the presumption "that the Unimog would still be marketed, as in the past, principally through farm machinery and heavy equipment dealers." This interpretation was intended to cover only Unimogs that Mercedes-Benz manufactured for sale in the United States through farm machinery and heavy equipment dealers. It was not intended as a decision that Unimogs other than these were not "motor vehicles" and to exempt them also from compliance with the Federal motor vehicle safety standards. Indeed, your manifest intent is to convert the Unimog truck to a motor home and then use it on the roads to drive from the United States to other countries. We therefore cannot permit you to import the Unimog truck under Box 8 of the HS-7 Declaration Form as a vehicle that was not manufactured primarily for use on the public roads. Under our regulations, the proper course to follow is to obtain the services of a "registered importer," who would petition the agency for a decision that the 1981 Unimog truck is capable of conversion to comply with the Federal motor vehicle safety standards that applied to trucks in 1981. If the decision is affirmative, the registered importer would convert the Unimog to meet the 1981 truck standards after you had imported it, and certify to this agency that the modifications had been performed. I enclose a list of registered importers who are conversant with European vehicles. We understand that you wish to convert the truck to a motor home. We consider a motor home built on a truck chassis to be a "multipurpose passenger vehicle" (MPV). After the registered importer has certified the Unimog as meeting 1981 truck standards, any conversion work afterwards by the registered importer or by any manufacturer, distributor, dealer, or motor vehicle repair business must not take the vehicle out of compliance with any of the truck standards. However, conversion of a used 1981 truck to an MPV does not impose a new obligation to further convert the vehicle to meet 1981 MPV standards. You also raise the possibility of removing the truck box before importation and importing the Unimog as a chassis only. This does not appear feasible under our regulations. Box 9 of the HS-7 Declaration Form permits the entry of vehicles requiring further manufacturing operations to perform their intended function, but the manufacturer of the incomplete vehicle (Mercedes-Benz) must provide a statement that accompanies the Form which meets the requirements of 49 CFR 568.4, indicating the applicable Federal motor vehicle safety standards with which the incomplete vehicle does not comply and describing the further manufacturing operations required to conform it. If you have further questions, you may contact Taylor Vinson of this Office (202-366-5263). Sincerely, |
1999 |
ID: used_carseatsOpenMs. Shauna Sloan Dear Ms. Sloan: This responds to your letter asking whether there are Federal regulations applying to "the resale of used car seats or child restraint systems". Our use of the term "child restraint system" includes "car seats" and other types of child restraints. By way of background information, the National Highway Traffic Safety Administration (NHTSA) has the authority to issue Federal motor vehicle safety standards for new motor vehicles and new items of motor vehicle equipment. Federal Motor Vehicle Safety Standard (FMVSS) No. 213, "Child restraint systems," applies to new child restraint systems. The requirement under Federal law to manufacture and sell products that meet all applicable FMVSSs does not apply to the sale of a vehicle or item of equipment after the first purchase of the item in good faith other than for resale ("first retail sale"). Thus, the answer to your question is no, Federal law does not apply to the resale of used child restraint systems. However, while the FMVSSs apply to new motor vehicles and items of motor vehicle equipment, several of our programs affect used vehicles or equipment. The "make inoperative" provision of our statute (49 U.S.C. 30101 et seq. ) states: "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." 49 U.S.C. 30122(b). This provision applies to new and used motor vehicles and motor vehicle equipment. Thus, manufacturers, distributor, dealers, or motor vehicle repair businesses are not permitted to make inoperative a device or design installed on or in a new or used child restraint in compliance with FMVSS No. 213. Also, under our statute, manufacturers of motor vehicle equipment (including child restraint systems) must ensure that their products are free of safety-related defects. NHTSAs investigations of safety-related defects often originate from reports of problems from owners of motor vehicles and motor vehicle equipment. Finally, under 49 U.S.C. 30112, a person may not import into the United States, "any motor vehicle or motor vehicle equipment manufactured on or after the date an applicable motor vehicle safety standard prescribed under this chapter takes effect unless the vehicle or equipment complies with the standard[. ]" This compliance requirement includes child restraint systems, which are subject to the provisions of FMVSS No. 213. You asked if states regulate the resale of used child restraint systems. States could regulate the sale and use of used child restraints. Unfortunately, we are unable to provide information of any such regulation state-by-state, as you requested. For your information, I have enclosed an information sheet that briefly describes responsibilities of new manufacturers of motor vehicles and motor vehicle equipment. I have also enclosed information on NHTSAs policy regarding the re-use of child restraints after minor crashes. If you have further questions, please feel free to call Deirdre Fujita of my staff at 202-366-2992. Sincerely, Stephen P. Wood Enclosures |
2005 |
ID: usedchasOpen Dennis T. Snyder, Esquire Dear Mr. Snyder: This is in response to your letter of May 11, 1995, asking whether a client of yours is a "final stage manufacturer" within the meaning of the National Traffic and Motor Vehicle Safety Act and implementing regulations on manufacturer identification and vehicle certification found in 49 CFR Parts 566, 567, and 568. You have described this client as being engaged in the manufacture of completed heavy duty dump trucks, vans, and road tractors from used chassis-cabs. The term "manufacturer" is defined in 49 U.S.C. ' 30102(a)(5) (formerly section 102(5) of the National Traffic and Motor Vehicle Safety Act) as "a person- (A) manufacturing or assembling motor vehicles or motor vehicle equipment . . . " (emphasis added). Based on your description of your client as being engaged in the assembly of completed motor vehicles, it would appear to meet this definition. Because the manufacturer identification requirements of 49 CFR Part 566 apply to "all manufacturers of motor vehicles," as stated in section 566.3 of that Part, your client would be required to submit to the National Highway Traffic Safety Administration (NHTSA) the identifying information specified in 49 CFR 566.5. The term "final stage manufacturer" is defined at 49 CFR 568.3 as "a person who performs such manufacturing operations on an incomplete vehicle that it becomes a completed vehicle." An "incomplete vehicle" is defined in that section as "an assemblage consisting, at a minimum, of frame and chassis structure, power train, steering system, suspension system, and braking system . . . that requires further manufacturing operations . . . to become a completed vehicle." The term "completed vehicle" is in turn defined in section 568.3 as "a vehicle that requires no further manufacturing operations to perform its intended function . . . ." Based on your description of your client as being engaged in the manufacture of completed heavy duty dump trucks, vans, and road tractors from chassis-cabs, it would qualify as a final stage manufacturer, as that term is defined in section 568.3. Requirements for final stage manufacturers are specified at 49 CFR 568.6. This section provides that a final stage manufacturer shall complete each vehicle "in such a manner that it conforms to the [Federal motor vehicle safety] standards in effect on the date of manufacture of the incomplete vehicle, the date of final completion, or a date between those two dates," and shall affix a label to the vehicle attesting to that conformance in accordance with 49 CFR 567.5, which specifies certification requirements for vehicles manufactured in two or more stages. These certification requirements are in implementation of 49 U.S.C. ' 30115, which requires the manufacturer of a new motor vehicle to certify to the dealer or distributor at delivery that the vehicle complies with applicable motor vehicle safety standards. NHTSA has long taken the position, however, that a vehicle is used if it is assembled by adding a new body to the chassis of a vehicle previously registered for use on the public roads. As a consequence, your client would not be required to certify the vehicles that it manufactures in this fashion. Your client would nevertheless be subject to 49 U.S.C. ' 30122(b), which provides that "[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 . . . in compliance with an applicable motor vehicle safety standard . . . ." NHTSA has interpreted this provision as requiring any of the specified entities that remove an old body from a vehicle in order to install a new one to ensure that the newly completed vehicle meets the standards that the vehicle was originally required to meet. For example, a vehicle consisting of a body manufactured in 1995 mounted on a used 1989 chassis must meet all standards that applied to 1989 vehicles. Your client would be liable for any violation of this requirement on vehicles that it manufactures, regardless of whether it removed the body from the old vehicle itself, or directed another entity to do so. Additionally, as a vehicle manufacturer, your client would be required under 49 U.S.C. ' 30118 to furnish owners with notification of, and a remedy for, any safety-related defect or any noncompliance with an applicable Federal motor vehicle safety standard that is found to exist in a vehicle that it assembles. If you have any further questions regarding this matter, feel free to contact Coleman Sachs of my staff at the above address, or by telephone at (202) 366- 5238. Sincerely,
John Womack Acting Chief Counsel ref:566#VSA d:6/13/95
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1995 |
ID: vanhool.2OpenMr. Wilfried Geens Dear Mr. Geens: This responds to your letter of July 23, 2004, in which you sought clarification as to whether certain identified headlamp assembly designs for one of your motor coach models would comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 108, Lamps, Reflective Devices and Associated Equipment. Your letter went on to describe four potential headlamp assembly designs containing three horizontally-aligned lamps on each side of the vehicle, which reflect "European styling" that you wish to introduce to the U.S. market. To simplify the discussion, each of these proposed designs is described below, followed by our response. By way of background, the National Highway Traffic Safety Administration (NHTSA) is authorized to issue FMVSSs that set performance requirements for new motor vehicles and items of motor vehicle equipment (see 49 U.S.C. Chapter 301). NHTSA does not provide approval of motor vehicles or motor vehicle equipment, and we do not determine compliance of a vehicle or item of equipment outside the context of an actual enforcement proceeding. Instead, manufacturers are required to self-certify that their products conform to all applicable safety standards that are in effect on the date of manufacture. The following represents our opinion regarding the applicability of our laws to your products based upon the facts set forth in your letter. Before turning to your specific questions, I would like to clarify generally our requirements for headlighting systems of the type described in your letter. Your letter described your existing European headlamp assembly containing three projector lamps on each side, two of which provide an upper beam. These projector lamps are all at the same height, with a center lower beam projector flanked by two upper beam projectors. An enclosure to your letter depicting one of the headlamp assemblies used in this system leads us to believe that your system uses replaceable light sources. You stated that this design is in compliance with the relevant UN Economic Commission for Europe (ECE) Directive (ECE R48.02). Vehicles offered for sale in the U.S. must meet all applicable requirements of NHTSAs FMVSSs, and FMVSS No. 108 prohibits a vehicle with a replaceable bulb headlamp system from having more than two upper beams and two lower beams. Specifically, paragraph S7.5, Replaceable bulb headlamp systems, subparagraph (a) provides, "The system shall provide only two lower beams and two upper beams and shall incorporate not more than two replaceable light sources in each headlamp." Based upon your questions, it is apparent that you recognize this limitation and seek to identify lamp arrangements that meet the requirements of the standard. For the sake of analysis, we assume that your motor coaches are 80 inches or more in overall width and that the described upper and lower beams comply with the photometric requirements of FMVSS No. 108. PROPOSAL 1
PROPOSAL 2
PROPOSAL 3
PROPOSAL 4
If you have any questions, you may contact Eric Stas of my staff at (202) 366-2992. Sincerely, Jacqueline Glassman ref:108 |
2004 |
ID: vastatepat.ztvOpen Col. W. Gerald Massengill Dear Col. Massengill: This is in reply to your letter of April 19, 2001, to Taylor Vinson of this Office regarding undercover or "hide-a-way" lights on Virginia state police patrol vehicles. You would like to equip unmarked patrol cars with a certain lighting system for use on Interstate highways within the Commonwealth if the lights comply with Federal Motor Vehicle Safety Standard No. 108. You have asked two specific questions. For the reasons discussed below, our answer is that you may equip your vehicles with this system without violating Federal law. You write that "Ford Motor Company engaged a consulting firm, Crown North America, to install the Whelan lights in the taillight, four side marker lights, and possibly the parking lights of a new Crown Victoria for evaluation." The "Whelan lights" are apparently strobe lights. These appear to be part of a "Police Prep and Visibility Package" which forms the basis of a "Police Interceptor Police Package" marketed by Ford Motor Company. Under Ford's "Visibility Package," a strobe power supply is installed in the trunk of a vehicle "capable of controlling all strobe light heads." You have asked: "First, is whether the modification of the tail and marker lights to allow insertion of the strobe unit impairs the effectiveness of the equipment required by FMVSS 108, renders the equipment non-compliant or compromises the integrity of the original lighting devices?" With respect to new vehicles, Standard No. 108 requires parking lamps, side marker lamps, and optional lighting to be steady burning in use (S5.5.10(d)). When parking lamps and side marker lamps are flashed by the strobe device, a noncompliance with Standard No. 108 would occur. Standard No. 108 also prohibits the installation of "other motor vehicle equipment . . . that impairs the effectiveness of lighting equipment required by this standard" (S5.1.3). Strobe lights are "other motor vehicle equipment" within the meaning of this phrase. We read the term "installation" to include use of the other vehicle equipment. Impairment of parking and side marker lamps will result if they are activated for a purpose other than to serve as parking and side marker lamps. Traditionally, we defer to the judgment of States as to the installation and use of emergency lighting devices on its vehicles. In this instance, the strobe lights will be used on unmarked Ford Crown Victoria passenger cars, virtually identical to Ford Crown Victoria passenger cars available to the general public. We want to allow States to install and use strobe lights on unmarked vehicles yet we do not think it in the interest of safety to allow the general public to do the same on virtually identical vehicles. We would distinguish police and private vehicles in this manner. The drivers that operate police vehicles will be instructed to use the strobe equipment only when it is required to alert a motorist to pull to the side of the road and thereafter to alert other motorists of the presence of stopped vehicles and law enforcement personnel at the side of the road. In all other circumstances, the parking lamps and side marker lamps will operate as they normally do. Thus, the noncompliance and impairment are temporary in nature and are necessary for the missions of the State police. We believe, then, that the strobe equipment is permissible because of the circumstances which are unique to law enforcement. This would not be the case for vehicles that are not specified by state or local laws to be emergency vehicles that may be required to have special, additional lighting. "Second, once installed, if the strobes are removed and the hole plugged prior to auctioning the vehicle, would these modifications render the light noncompliant with FMVSS 108?" We assume that you mean the tail and marker lamps to which you referred in your first question. If the strobes are removed from the tail and side marker lamps, and those lamps continue to perform as they originally did when the vehicle was certified by Ford Motor Company, then the removal of the strobes would not of themselves appear to render the light noncompliant with Standard No. 108. Care should be taken in plugging the holes to minimize the chance of environmental degradation (e.g., dust, moisture) of lighting performance. Under Federal law (49 U.S.C. 30122), the State, as the owner of a vehicle, may itself modify the vehicle after its purchase even if this modification results in a noncompliance with a Federal motor vehicle safety standard. Further, there is no Federal requirement that the owner return the vehicle to compliance before selling it. However, we ask that the State Patrol ensure that lamps on vehicles it sells at auctions are properly wired and have the proper bulbs if these were affected by the installation or removal of the lamps used in undercover lighting schemes. If you have further questions you may call Mr. Vinson (202-366-5263). Sincerely, John Womack ref:108 |
2001 |
ID: VICKOpenMr. Greg Vickers Dear Mr. Vickers: This responds to your letter to the National Highway Traffic Safety Administration (NHTSA), concerning Standard No. 121, Air Brake Systems. You were particularly interested in the antilock braking system requirements which become effective on March 1, 1998. You explain that Truck Mixer Manufacturers Bureau (TMMB) member companies are final stage manufacturers. They usually purchase new chassis and "finish" them by mounting bodies, i.e., concrete mixers. You ask:
Our standards apply to any motor vehicle manufactured on or after the effective date of the standard. However, special provisions apply to vehicles manufactured in two or more stages. If your members purchase "incomplete vehicles," the vehicles may be completed to the standards in effect on the date of the manufacture of the incomplete vehicle, the date of final completion, or a date between those two dates.(1) In the example you provide, the date of manufacture of the incomplete vehicle would be prior to the effective date of the ABS requirements. Thus, the use of ABS would be optional for the final stage manufacturers. You also ask about "another ABS related matter." You state:
Given that you are concerned whether the addition of a liftable axle would "decertify" the braking system of the chassis, we assume that you are asking about chassis-cabs.(2) As discussed below, the answer would depend on the type and nature of the certification statement made by the chassis-cab manufacturer. I note, however, that this agency cannot provide verification that the addition of a liftable axle would not affect a vehicle's compliance with Standard No. 121. Under 49 CFR Part 567.5(a), the chassis-cab manufacturer is required to make a certification statement, with respect to each Federal motor vehicle safety standard, in one of three categories: (1) The vehicle conforms to the standard, (2) The vehicle will conform to the standard if it is completed in accordance with the instructions contained in the incomplete vehicle document (this statement is made with respect to standards conformity to which is substantially affected by the design of the chassis-cab and the manner in which the vehicle is completed), or (3) Conformity with the standard is not substantially affected by the design of the chassis-cab. The final stage manufacturer's certification responsibilities (49 CFR 567.5(c)) for a particular vehicle are dependent on the type and nature of the certification statements made by the chassis-cab manufacturer, and on the specific manufacturing operations performed by the final stage manufacturer. In the case of Standard No. 121, we assume the chassis-cab manufacturer would make a certification statement in the second category set forth above, i.e., a conditional statement. The final stage manufacturer could rely on this conditional statement only if it completed the vehicle in accordance with the chassis-cab manufacturer's instructions. See 49 CFR Part 567.5(c). If the final stage manufacturer did not complete the vehicle in accordance with those instructions, it would be responsible for ensuring compliance of the vehicle to Standard No. 121, and certifying such compliance. I also note that the addition of a liftable axle could affect compliance of a vehicle with other safety standards, including Standard No. 120, Tire Selection and Rims for Motor Vehicles Other Than Passenger Cars. I hope this information is helpful. If you have any further questions, please feel free to call Edward Glancy of my staff at (202) 366-2992. Sincerely, 1. See 49 CFR 567 and 568. Note that 568.6 also specifies that this provision shall, however, be superseded by any conflicting provisions of a standard that applies by its terms to vehicles manufactured in two or more stages. The ABS requirements include no such provision. 2. While incomplete vehicle manufacturers are required under 49 CFR Part 568 to provide information with all their vehicles concerning conformity to Federal motor vehicle safety standards, only chassis-cabs are required to be certified. See 49 CFR Part 567. |
1997 |
ID: VINsOpen Mr. Dale Kardos Dear Mr. Kardos: This responds to your letter requesting information on Vehicle Identification Number (VIN) requirements as they pertain to a forthcoming Porsche sport utility vehicle (SUV). You state that the Porsche SUV will be produced in two stages and in two different Porsche plants. The first stage will occur at the Porsche plant in Bratislava, Slovakia, where the body structure will be produced, and the front windshield and VIN will be installed. This basic structure then will be transported to the Porsche plant in Leipzig, Germany, where it will be combined with the rest of the vehicle (i.e., engine, transmission, wheels, tires, brakes, etc.). You ask whether it is acceptable to use the letter "L" as the eleventh character of the VIN, which would indicate the plant of manufacture as the Leipzig plant rather than the Bratislava plant. Under the circumstances described above, this is acceptable. The National Highway Traffic Safety Administration's (NHTSA's) VIN requirements are contained in 49 CFR Part 565. Each VIN must be made up of seventeen characters consisting of Arabic numbers and Roman letters. Under 565.6(d)(2), the eleventh character must represent the "plant of manufacture," which is defined as the plant where the manufacturer affixes the VIN. Since the VINs of the Porsche SUVs will be affixed at the Bratislava plant, it would appear that the eleventh character in the Porsche SUV VINs should indicate the Bratislava plant, not the Leipzig plant. However, the requirements of Part 565 do not apply until the structure at a minimum meets the definition of an "incomplete vehicle." Section 565.4(a) requires a vehicle manufactured in more than one stage to have a VIN assigned by the incomplete vehicle manufacturer. An "incomplete vehicle" is defined as: an assemblage consisting, at a minimum, of frame and chassis structure, power train, steering system, suspension system and braking system, to the extent that those systems are to be part of the completed vehicle, that requires further manufacturing operations, other than the addition of readily attachable components, such as mirrors or tire and rim assemblies, or minor finishing operations such as painting, to become a completed vehicle. Since the Porsche SUV unit which will be produced at the plant in Bratislava will consist only of the body structure, front windshield, and VIN, it does not meet the definition of an "incomplete vehicle." Thus, the requirements of Part 565 do not apply to the Porsche SUV until the unit produced at the Bratislava plant is married with the power train, steering system, suspension system, and braking system. Since this will take place at the Leipzig plant, NHTSA considers the Leipzig plant to be the plant of manufacture for purposes of 49 CFR Part 565. Consequently, Porsche should use the letter "L" as the eleventh character in Porsche SUV VINs to indicate the Leipzig plant as the plant of manufacture. I hope this answers your question. If you have any further questions regarding this matter, please feel free to contact Mr. Dion Casey in my office at (202) 366-2992. Sincerely, John Womack |
2001 |
ID: visor21836Open Mr. Richard Larson Dear Mr. Larson: This responds to your letter asking for information about the application of Federal safety standards to a sun visor attachment. As you state, the attachment "is roughly 2 inches in diameter and can be attached to the visor wherever the driver prefers" and "is translucent and can be tinted as well." You do not mention, however, the purpose of the attachment, or provide a more thorough description of the product. Further, you ask for information regarding 49 U.S. Code (U.S.C.) 30122, the "make inoperative" provision of our statute (formally codified at 15 U.S.C. 108(a)(2)(A).) (1) By way of background information, the National Highway Traffic Safety Administration (NHTSA) has the authority to issue Federal motor vehicle safety standards (FMVSSs) applicable to new motor vehicles and new items of motor vehicle equipment. Federal law establishes a self-certification system under which motor vehicle and equipment manufacturers themselves certify that their products comply with all applicable standards. For that reason, NHTSA neither tests, endorses, nor grants letters of approval of products prior to their introduction into the retail market. Rather, we enforce compliance with the standards by purchasing new vehicles and equipment and testing them. We also investigate safety-related defects. As far as we can tell from your letter, your product appears to be an item of motor vehicle equipment regulated by NHTSA. Our statute defines "motor vehicle equipment," in relevant part, as any system, part, or component "sold ... as an accessory or addition to a motor vehicle" (49 U.S.C. 30102(a)(7)(B)). An item of equipment is an accessory if it meets the following criteria: 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. Your sun visor attachment is an accessory because it was presumably designed with the expectation that a substantial portion of its expected use will be with motor vehicles. (We make this assumption because you designed the product to attach to a vehicle's sun visor, "wherever the driver prefers.") Further, the attachment is intended to be purchased and principally used by ordinary users of motor vehicles. There is currently no FMVSS that is directly applicable to a sun visor attachment sold directly to a consumer. The FMVSSs that regulate aspects of sun visors, FMVSS No. 201, Occupant Protection in Interior Impact, and FMVSS No. 302, Flammability of Interior Materials, apply only to new, completed motor vehicles (i.e., vehicles that have not yet been sold for purposes other than resale) and not to items of aftermarket equipment, such as a sun visor attachment. However, a manufacturer of aftermarket equipment, whether you or a licensee, is subject to the requirements of 49 U.S.C. 30118-30121 (copy enclosed) which set forth the notification and remedy (recall) requirements for products with defects related to motor vehicle safety. Thus, if NHTSA or the manufacturer of the product determines that the product contains a safety-related defect, the manufacturer is responsible for notifying purchasers of the defective equipment and remedying the problem free of charge. The installation of the sun visor attachment by a commercial entity is also subject to certain restrictions, as discussed below. Our statute at 49 U.S.C. 30122, formerly 108(a)(2)(A) of the Vehicle Safety Act (the section of which you inquire in your letter), provides that a manufacturer, distributor, dealer, or motor vehicle repair business may not knowingly "make inoperative" any device or element of design installed on or in a new or used motor vehicle in accordance with any FMVSS. Therefore, the sun visor attachment could not be installed by any of those entities if such use would adversely affect the compliance of a vehicle with any FMVSS, including but not limited to those identified above. The "make inoperative" provision does not apply to equipment attached to or installed on or in a vehicle by the vehicle owner. However, NHTSA urges vehicle owners not to degrade the safety of any system or device on their vehicles. I note that the Department's Federal Motor Carrier Safety Administration has jurisdiction over interstate motor carriers operating in the U.S. You should contact that agency at (202) 366-4012 for information about any requirements that may apply to your product. In addition, states have the authority to regulate the use and licensing of vehicles operating within their jurisdictions and may prohibit sun visor attachments. Therefore, in response to your question regarding who you should contact regarding the standards of each state, you should check with the Department of Motor Vehicles in any state in which the equipment will be sold or used. In further response to your question, we regret that we do not have the internet addresses for each state. For your further information, I am enclosing a fact sheet we prepared entitled Information for New Manufacturers of Motor Vehicles and Motor Vehicle Equipment, and Where to Obtain NHTSA's Safety Standards and Regulations. I hope this information is helpful. If you have any questions or need additional information, feel free to contact Nancy Bell of my staff at (202) 366-2992. Sincerely, Frank Seales, Jr. Enclosures
1. Our statute, formerly the National Traffic and Motor Vehicle Safety Act, was recodified in 1994 without substantive change. It is now codified at Title 49 of the U.S. Code in Chapter 301, Motor Vehicle Safety.) |
2000 |
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.