Skip to main content

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 12621 - 12630 of 16510
Interpretations Date
 search results table

ID: 8136

Open

Mr. Curtis J. Crist
Product Development
US Marine
P.O. Box 9029
Everett, WA 98206

Dear Mr. Crist:

This responds to your letter of December 10, 1992, in which you ask for confirmation that the provisions of paragraph S4.3.1.3 of Motor Vehicle Safety Standard No. 108 relating to front side marker lamps for boat trailers remain unchanged from interpretations provided by this Office in 1976 and 1977.

I am pleased to confirm that these requirements remain the same. Paragraph S4.3.1.3, however, was renumbered S5.3.1.3 several years ago.

You have also asked as to what action you must take for elimination of the requirement for rear identification lamps on boat trailers 80 or more inches in overall width. You may file a petition for rulemaking requesting this change. I enclose a copy of 49 CFR Part 552, the regulation governing these petitions, which will advise you as to these procedures. Section 552.4 sets forth the information that the petition should contain, and the address to which it must be sent.

Sincerely,

Paul Jackson Rice Chief Counsel

Enclosure ref:108 d.12/29/92

1992

ID: 8159

Open

James E. Schlesinger, Esquire
Schlesinger, Arkwright & Garvey
3000 South Eads Street
Arlington, VA 22202

Dear Mr. Schlesinger:

This responds to your letter addressed to Walter Myers of this office, requesting an opinion concerning the Uniform Tire Quality Grading Standards (UTQGS).

You stated in your letter that two tire manufacturers, A and B, both with production facilities in both Canada and the United States, produced tires for a brand name owner, Company C, in Canada. A, B, and C agreed that in the event of overproduction or if some of the tires were "blems" (Company C refuses to accept blems, which are tires with minor cosmetic blemishes but structurally sound), A and B were free to market their tires elsewhere, including the United States. The tires manufactured for Company C contain the DOT number and the Canadian National Tire Safety Mark, but not the UTQGS information, which is not required in Canada. You stated that over a period of 1 1/2 years, A imported 10,622 tires into the United States while B imported 12,856 tires, including 4,644 blems, into the country. All were passenger tires and all sales occurred in 1990 and 1991. You then posed three questions based on those facts, which I will answer below in the order presented.

First, by way of background information, under the National Traffic and Motor Vehicle Safety Act of 1966 (15 U.S.C. 1381) et seq., as amended (hereinafter Act), the National Highway Traffic Safety Administration (NHTSA) is authorized to issue Federal motor vehicle safety standards applicable to all new motor vehicles and items of new motor vehicle equipment, which includes tires. Section 203 of the Act (15 U.S.C. 1423) directs the Secretary to prescribe, through standards established under Title I of the Act, a uniform quality grading system for motor vehicle tires. NHTSA issued the UTQGS under the authority of 203 and 112(d) (15 U.S.C. 1401(d)), which authorizes the Secretary to require manufacturers to provide performance and technical data to the first purchasers of motor vehicle equipment for purposes other than resale. The UTQGS may be found at 49 CFR 575.104.

The penalties for violation of the UTQGS are set forth in the Act. Section 108(a)(1)(E) of the Act (15 U.S.C. 1397(a)(1)(E)) prohibits any failure to comply with any rule, regulation, or order issued under 112. Sanctions for violation of 108 are set forth in 109 of the Act (15 U.S.C. 1398(a)), which provides civil penalties of up to $1,000 for each violation of 108, up to a total maximum civil penalty of $800,000 for "any related series of violations." In addition, 110(a) of the Act (15 U.S.C. 1399(a)) gives U.S. district courts the jurisdiction to restrain any violation of Title I of the Act, or any rule, regulation, or order issued thereunder, which include the UTQGS.

With that background in mind, I turn now to your specific questions:

1. Is it unlawful to import, sell or distribute in the United States tires which do not have the UTQG information on the sidewall of the tire and/or on the paper tread label for the tire? ANSWER: Subject to the exceptions discussed in the answer to your question No. 3 below, 49 CFR 575.6(b) provides that: At the time a motor vehicle tire is delivered to the first purchaser for a purpose other than resale, the manufacturer of that tire or, . . . the brand name owner, shall provide to that purchaser the information specified in Subpart B of this part that is applicable to that tire.

Subpart B includes 575.104 which, at (d)(1)(i)(A), requires that the UTQG information be molded onto or into the tire sidewall. Where a new tire line is introduced into the United States for the first time, however, the tire manufacturer or brand name owner may, for the first six months after the tire's introduction, provide the UTQG information by means of a paper label affixed to the tread surface of the tire. After that six-month grace period, the required information must be molded onto or into the tire sidewall.

Although both the Act and the UTQGS are silent as to whether tires can be imported or distributed without the UTQGS information, there would be no point in doing so since the tires cannot legally be sold without that information.

2. If it is unlawful to import, distribute and sell tires in the United States without said UTQG information, what penalties are imposed on the manufacturer and/or brand name owner?

ANSWER: As discussed above, civil penalties of up to $1,000 for each violation of 575.6(b) may be imposed, up to a maximum of $800,000. In addition, U.S. district courts have jurisdiction to restrain any such violations. 3. Would any of the exceptions of 49 CFR 575.104(c) apply in this case, and, if so, in what way? Is there any legislative history or interpretation of the meaning of "limited production tires" as noted in this section, and what effects, if any, this limitation might have on the above fact situation?

ANSWER: 49 CFR 575.104(c) provides that the UTQGS apply to new pneumatic passenger car tires. The standards do not apply, however, to deep tread, winter type snow tires, space-saver or temporary use spare tires, tires with nominal rim diameters of 10 to 12 inches, or "limited production" tires. In order to qualify as a limited production tire, 575.104(c)(2) establishes four criteria, all of which the tires must meet:

(i) The manufacturer's annual domestic production or importation into the U.S. of tires of the same size and design as the tire does not exceed 15,000 tires;

(ii) The annual domestic purchase or importation by a brand name owner into the U.S. of tires of the same size and design as the tire does not exceed 15,000 tires;

(iii) The tire's size was not listed as a vehicle manufacturer's recommended tire size designation for a new motor vehicle produced in or imported into the U.S. in quantities greater than 10,000 during the calendar year preceding the year of the tire's manufacture; and

(iv) The total annual production or importation into the U.S. by the manufacturer or, if the tire is marketed under a brand name, the total annual domestic purchase or purchase for importation into the U.S. by the tire's brand name owner, of tires meeting the criteria of (i), (ii), and (iii) above, does not exceed 35,000 tires.

Section 575.104(c) also states that "tire design" is "the combination of general structural characteristics, materials, and tread pattern, but does include cosmetic, identifying or other minor variations among tires."

The factual scenario you described in your letter would suggest that the tires in question might meet the numbers criteria of (c)(2)(i) and (ii), but there is not sufficient information on

which to base an opinion as to whether they meet the other two criteria. There is likewise insufficient information to determine whether the exceptions relating to deep tread, winter-type snow tires, space-saver or temporary use spare tires, or tires with nominal rim diameters of 10 to 12 inches may apply to any or all the tires in question. The manufacturer(s) seeking to import those tires into the U.S. must make those determinations.

For your additional information, I am enclosing a copy of 45 FR 23442, dated April 7, 1980, the final rule which initially exempted limited production tires from the UTQGS. That notice explains the rationale for exempting limited production tires and other background information you may find helpful.

I hope the above information will be of assistance to you. Should you have any further questions or need additional information regarding this matter, please feel free to contact Walter Myers at this address or at (202) 366-2992.

Sincerely,

John Womack Acting Chief Counsel

Enclosure ref:575 d:2/23/93

1993

ID: 8162

Open

7

Mr. David H. B. Lee President, Lee Family, Inc. 701 East 30th Hutchinson, KS 67502

Dear Mr. Lee:

This responds to your letter of December 29, 1992, with respect to a "Third Brake Light Conditions Sensor", for which you have requested a review and testing. You have also asked for our comments and advice on the sale and promotion of this product. We assume that you would like to sell it in the aftermarket to vehicle owners.

We have reviewed the videotape you enclosed, and are able to advise you on this basis. The tape shows that the device is intended for installation by the owner of the vehicle, and, when installed, causes the center highmounted brake lamp to flash in proportion to braking effort (i.e., a panic or quick stop produces a higher flash rate than a stop made at a slower vehicle deceleration).

Motor vehicle lighting in the United States is subject to both Federal and State requirements. The National Traffic and Motor Vehicle Safety Act and Federal Motor Vehicle Safety Standard No. 108 Lamps, Reflective Devices, and Associated Equipment are the Federal requirements to which I refer. Standard No. 108 prescribes requirements for center highmounted stop lamps that must be followed by the manufacturer of the vehicle, and met at the time the vehicle is sold by the dealer to its first owner. One of these requirements is that the center highmounted stop lamp be steady burning when it is in use. Because the Sensor creates a flashing light, a vehicle manufacturer would not be able to use it as original equipment on a vehicle subject to Standard No. 108's requirements for center lamps. These vehicles are passenger cars manufactured on and after September 1, 1985, and light trucks and vans manufactured on and after September 1, 1993.

The Safety Act governs modifications to vehicles after their initial sale. This Act does not prohibit a vehicle owner from modifications that affect compliance with Standard No. 108 (or any other Federal motor vehicle safety standard). Thus, a vehicle owner may install the Sensor without violation of Federal requirements. However, we interpret the Safety Act as prohibiting the installation of the Sensor by a manufacturer, dealer, distributor, or motor vehicle repair business. Under the Act, these persons shall not "render inoperative, in whole or in part, any device or element of design installed in accordance with a Federal motor vehicle safety standard." In our view, this forbids the installation of equipment that would take a vehicle out of compliance with a Federal motor vehicle safety standard. However, the Act does not forbid the sale of componentry such as the Sensor which creates a noncompliance once it is installed. In summary, under Federal law, any person may sell your device, but only a person other than a manufacturer, dealer, distributor, or motor vehicle repair business may install it.

We are unable to advise you as to whether the laws of any State prohibit the use of a flashing center highmounted stop lamp, and recommend that you consult the American Association of Motor Vehicle Administrators for an opinion. Its address is 4600 Wilson Boulevard, Arlington, Va. 22203.

We are returning your videotape and sample Sensors.

Sincerely,

Paul Jackson Rice Chief Counsel

Enclosures ref:108 d.1/26/93

1993

ID: 8180

Open

Mr. Juan F. Vega
102790
F.S.P.
P.O. Box 747
Starke, FL 32091
U-2-N-9

Dear Mr. Vega:

This responds to your letter addressed to former Secretary Card. Your letter expresses concern that vans used by the Florida State Prison to transport prisoners do not have seat belts. According to your letter and copies of other correspondence you enclosed, wood and metal benches are located along the sides of the rear area of the vans, and there are no side windows in that area. You state that you believe that this is a violation of Florida and Federal safety belt laws. Your letter has been referred to the National Highway Traffic Safety Administration (NHTSA) for response because it contains questions concerning laws and regulations administered by this agency.

Let me begin by making clear that I have no special knowledge or expertise with respect to Florida law. My answer will address only the requirements of the laws and regulations administered by this agency.

Some background information may be helpful. NHTSA is authorized under the National Traffic and Motor Vehicle Safety Act (15 U.S.C. 1381 et seq.; Safety Act) to issue motor vehicle safety standards that apply to the manufacture and sale of new motor vehicles and new items of motor vehicle equipment. NHTSA has exercised this authority to establish Standard No. 208, Occupant Crash Protection, (49 CFR 571.208) which, among other things, requires safety belts to be installed at certain seating positions in motor vehicles. However, different requirements apply depending on the vehicle type, seating position within the vehicle, and the GVWR of the vehicle. Accordingly, I cannot identify the specific requirements for the vans you are concerned about without knowing the vehicles' date of manufacture, seating capacity, and gross vehicle weight rating.

The Safety Act provides that no person shall manufacture, import, or sell any new vehicle unless it complies with all applicable Federal motor vehicle safety standards, including the seat belt installation requirements in Standard No. 208. See 15 U.S.C. 1397(a)(1)(A). The requirement that a vehicle comply with all applicable safety standards applies only until the vehicle's first purchase in good faith for purposes other than resale. See 15 U.S.C. 1397(b)(1). After such first purchase, the only provision in Federal law that affects modifications that can be made to the vehicle is set forth in 15 U.S.C. 1397(a)(2)(A). That section provides that:

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

Please note that this prohibition applies only to the commercial entities identified in the section, not to individual vehicle owners. Vehicle owners may alter their own vehicles and operate them on the highways without violating Federal law, even if the owner's modifications cause the vehicle to no longer comply with the seat belt installation requirements of Standard No. 208. Thus, if a State purchases a vehicle and makes modifications itself, there is no violation of Federal law, even if the modified vehicle does not comply with the seat belt installation requirements of Standard No. 208.

I hope you find this information helpful.

Sincerely,

John Womack Acting Chief Counsel

ref:208 d:2/16/93

1993

ID: 8181

Open

The Honorable Paul David Wellstone
United States Senate
2550 University Avenue, West
Court International Building
St. Paul, MN 55114-1025

Dear Senator Wellstone:

Thank you for your letter on behalf of your constituents, Ms. Tutti Sherlock and Ms. Mary Bock, regarding the application of the National Highway Traffic Safety Administration's (NHTSA's) school bus standards to Head Start facilities.

Your constituents ask that NHTSA inform the Minnesota Department of Transportation that we do not require school bus manufacturers to provide school bus equipment, such as stop arms and special stop lights, on Head Start buses. They base this request on their belief that in 1985, NHTSA said that states may decide which regulations should apply to Head Start buses. They also believe that stop arms and lights for Head Start buses are unnecessary, and that painting Head Start buses yellow could be confusing.

We cannot provide the requested interpretation, because the understanding of your constituents is incorrect. By way of background, your constituents' concerns relate to two sets of regulations, issued under different Acts of Congress. The first of these, the Federal motor vehicle safety standards (FMVSS's) issued under the National Traffic and Motor Vehicle Safety Act ("Safety Act"), apply to the manufacture and sale of new motor vehicles. NHTSA has issued a number of FMVSS's for school buses, including FMVSS's requiring these buses to have a stop arm and warning lights. The Safety Act requires that each person selling a new bus (defined in our regulations as a vehicle designed for 11 or more persons) to a primary, preprimary or secondary school must sell a bus that is certified to the FMVSS's for school buses. State law cannot change this requirement.

The question of whether Head Start facilities are "schools" under the Safety Act has been addressed by NHTSA since the beginning of the school bus FMVSS's. The agency's longstanding position is that Head Start programs are primarily educational in focus rather than custodial, and are therefore "schools" under the Safety Act. We base this conclusion on a review of the goals and functions of the Head Start program (see, e.g., 45 CFR 1304.1-3), and on past NHTSA interpretations of "school." NHTSA has stated its position that Head Start facilities are schools most recently in an August 21, 1992 letter to Mr. Chuck Anderson of the Minnesota Department of Transportation. Any new bus that is sold to a Head Start facility must have the safety features of a school bus at the time of the vehicle's sale, including the stop arm and signal lights.

However, the Safety Act does not require Head Start facilities to use school buses or any other particular vehicle, nor does it require school buses to be painted yellow. The maintenance and operational characteristics of school buses are matters left to the individual states. We stated this in NHTSA's September 27, 1985 letter to Mr. Charles Pekow, to which you refer in your letter. To clarify your understanding of the letter, NHTSA stated that "The requirements for school bus operation and maintenance ... are matters left to the individual states to determine." (Emphasis added.) NHTSA's second set of school bus regulations, issued under the Highway Safety Act, is a set of recommendations to the states for developing effective pupil transportation programs. Highway Safety Program Guideline No. 17, "Pupil Transportation Safety" (copy enclosed), recommends that any vehicle designed for 11 or more persons that is used as a school bus should comply with the FMVSS's for school buses and should be painted yellow. However, Guideline 17 would affect the operation of your constituents' school buses only to the extent that Minnesota has incorporated it into state law.

I hope this information will be helpful in responding to your constituents.

Sincerely,

John Womack Acting Chief Counsel

Enclosure

ref:VSA d.1/26/93

1993

ID: 8199

Open

Christopher J. Daniels, Esquire
Nelson, Mullins, Riley & Scarborough
1330 Lady Street
P. O. Box 11070
Columbia, SC 29211

Dear Mr. Daniels:

This responds to your letter to Paul Jackson Rice, our former Chief Counsel, in which you referred to a tire manufactured in Canada that had had the "DOT number" obliterated. Because you think the tire was improperly sold in that condition, you asked whether it was illegal to import a tire from Canada without a DOT number and whether it was illegal to sell or use a tire on the highway without a "DOT serial number."

By way of background information, under the provisions of the National Traffic and Motor Vehicle Safety Act of 1966, 15 U.S.C. 1381, et seq., as amended (hereinafter Safety Act), the National Highway Traffic Safety Administration is authorized to issue Federal motor vehicle safety standards for new motor vehicles and items of new motor vehicle equipment, the latter of which includes tires. All new motor vehicles and items of new motor vehicle equipment manufactured or imported for sale in the United States must comply with all applicable safety standards. This requirement is found at Section 1397 (a)(1)(A) of the Safety Act which provides "No person shall . . . import into the United States, any . . . item of motor vehicle equipment manufactured on or after the date any applicable Federal motor vehicle safety standard takes effect . . . unless it is in conformity with such standard . . . ." The effect of that language is to require that tires manufactured on or after the effective date of applicable Federal safety standards must comply with those standards before they can be legally imported into the U.S. Pursuant to Standard 109 (49 CFR 571.109, New Pneumatic Tires) and Standard 119 (49 CFR 571.119, New Pneumatic Tires for Vehicles Other Than Passenger Cars), tire manufacturers must certify compliance therewith by molding the symbol "DOT" onto the tire sidewalls. Further, 49 CFR 574.5 requires that all tires sold in the U.S. have tire identification numbers (TIN) molded into or onto the tire sidewalls by the manufacturers to facilitate recall in the event of a noncompliance or defect.

With that background in mind, your specific questions are answered as follows:

1. Is it illegal to import a tire from Canada without a DOT serial number? Answer: Yes. Each tire imported into the U.S. for highway use must have molded into or onto the sidewall a TIN and a DOT symbol or in the alternative, be accompanied by proof that the tire was manufactured prior to the effective date of applicable safety standards. The only exception to these requirements is that used truck tire casings which have less than 2/32 inch tread remaining and which are being imported solely for retreading prior to on-road use may be imported without displaying the TIN or the DOT symbol.

2. Is it illegal to sell or use a tire for highway use without the DOT serial number? Answer: It is illegal for a manufacturer, distributor, or dealer to sell a new or retreaded tire to the first customer for purposes other than resale without the DOT symbol and the TIN molded into or onto the sidewall. There are no Federal requirements for the use of such tire once it has been sold to the first customer. There may, however, be state safety requirements pertinent to the use of motor vehicle equipment. For that information you should check with appropriate state officials.

If the tire in question is intended for or capable of being used on a commercial vehicle, you may want to check also with the Office of Motor Carrier Standards (Room 3404), of the Federal Highway Administration, at this address. (Telephone (202) 366-1790.)

I hope this information is helpful. Should you have any further questions, please feel free to contact Walter Myers of this office at (202) 366-2992.

Sincerely,

John Womack Acting Chief Counsel

ref:109#119#574 d:2/11/93

1993

ID: 8210a

Open

Mr. Thomas L. Wright
Coordinator, Technical Support Unit
State of New Jersey
Department of Law and Public Safety
Division of Motor Vehicles
Trenton, NJ 08666

Dear Mr. Wright:

This responds to your letter to Patrick Boyd of the National Highway Traffic Safety Administration's (NHTSA's) Office of Vehicle Safety Standards, concerning window tinting. Your letter has been referred to my office for reply.

Your questions relate to a January 22, 1992 (57 FR 2496) notice of proposed rulemaking (NPRM) on the tinting requirements of Safety Standard No. 205, "Glazing Materials." You ask about the status of the NPRM. The agency received a large number of comments on this rulemaking. We have reviewed the comments and are analyzing the issues raised in this rulemaking.

You also ask about a statement in the NPRM about Federal preemption of state window tinting laws. You ask whether Federal law preempts a state law that permits add-on window tinting material for medical or aesthetic reasons.

As explained below, the answer is no, provided that the state law regulates conduct other than that regulated by Federal law. Your question was addressed in the NPRM's discussion of the Federalism implications of the proposed rule (p. 2507).

By way of background, NHTSA issued Standard 205 under the authority of the National Traffic and Motor Vehicle Safety Act. The standard currently imposes a minimum level of light transmittance of 70% in all areas requisite for driving visibility (which includes all windows on passenger cars). The primary purpose of this requirement is to ensure adequate visibility through the windows, thereby reducing the risk of a motor vehicle crash.

Section 103(d) of the Safety Act provides that:

Whenever a Federal motor vehicle safety standard ... is in effect, no State or political subdivision of a State shall have any authority either to establish, or to continue in effect, with respect to any motor vehicle or item of motor vehicle equipment any safety standard applicable to the same aspect of performance of such vehicle or item of equipment which is not identical to the Federal standard.

Whether state law is preempted under 103(d) depends in part on the conduct that is regulated by that law. Federal safety standards regulate the manufacture and sale of new motor vehicles and new items of motor vehicle equipment. State law would be preempted to the extent it established performance requirements applicable to the manufacture of vehicles or glazing that differ from those in Standard 205. State law would also be preempted if it purported to allow the manufacture or sale of glazing materials or new vehicles containing glazing material that did not meet the specifications of Standard 205.

Federal law also regulates modifications made to new and used vehicles by motor vehicle manufacturers, distributors, dealers and repair businesses. Section 108(a)(2)(A) of the Safety Act provides that:

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

The effect of this is to impose limits on the tinting practices of businesses listed in 108(a)(2)(A). These businesses may not install tinting on new or used vehicles that reduces the light transmittance of windows covered by Standard 205 to a level below the Federal requirement of 70 percent. A state law would be preempted if it purported to allow modifications violating Standard 205 by these named businesses. Section 108(a)(2)(A) does not apply to actions by individual vehicle owners.

Because Federal safety standards regulate the manufacture and sale of new motor vehicles, state requirements applicable to the registration and inspection of motor vehicles after the first sale to a consumer are not preempted merely because they are not identical to the Federal safety standards, as long as they do not interfere with the achievement of the purposes of Federal law. Therefore, a state could permit the registration of a vehicle which had been altered by its owner by the addition of window tinting, even when the tinting reduces the light transmittance below the Federal standard. However, the state cannot legitimize conduct - the rendering inoperative of glazing by commercial businesses installing window tinting - that is illegal under Federal law.

I have enclosed a copy of the Report to Congress on Tinting of Motor Vehicle Windows which you requested. I hope you find this information helpful. If you have any other questions, please contact Marvin Shaw of my staff at this address or by phone at (202) 366-2992.

Sincerely,

John Womack Acting Chief Counsel

Enclosure

ref:205 d:3/11/93

1993

ID: 8223

Open

Mr. Donald L. Anglin
706 Rose Hill Drive
Charlottesville, VA 22903

Dear Mr. Anglin:

This responds to your letter in which you asked whether removing the self-adjusters on a motor vehicle's drum brakes constitutes a violation of the "anti-tampering" provisions of several Federal laws, including the National Traffic and Motor Vehicle Safety Act. I am pleased to have this opportunity to explain this agency's regulations. You will need to contact the Environmental Protection Agency for an interpretation of the Clean Air Act.

By way of background information, the National Traffic and Motor Vehicle Safety Act ("Safety Act") requires this agency, the National Highway Traffic Safety Administration (NHTSA), to promulgate motor vehicle safety standards that specify performance requirements for new motor vehicles and items of motor vehicle equipment. Among the standards issued by NHTSA are Standard No. 105, Hydraulic Brake Systems and Standard No. 121, Air Brake Systems. Standard No. 105 specifies requirements for hydraulic service brake and associated parking brake systems, and applies to new passenger cars, multipurpose passenger vehicles, trucks, and buses equipped with hydraulic brake systems. Standard No. 121 establishes performance and equipment requirements for braking systems on vehicles equipped with air brake systems, and applies to almost all new trucks, buses, and trailers equipped with air brake systems.

NHTSA recently amended these standards to require vehicles to be equipped with automatic brake adjusters. (57 FR 47793, October 20, 1992) This rule takes effect on October 20, 1993 for vehicles equipped with hydraulic brakes and on October 20, 1994 for vehicles equipped with air brakes. Until these effective dates, a vehicle is not required to be equipped with automatic brake adjusters.

You specifically asked about the agency's "anti-tampering" provisions. While the agency has no provision called this, the Safety Act does include a provision known as the "rendering inoperative" provision which is set forth in section 108(a)(2)(A) of the Safety Act (15 U.S.C. 1397(a)(2)(A)). That section prohibits manufacturers, distributors, dealers, and repair shops from knowingly "rendering inoperative," in whole or in part, any device or element of design installed on or in a vehicle in compliance with an applicable safety standard.

For vehicles manufactured on or after the effective date of the new requirements for automatic adjusters, manufacturers, distributors, dealers and repair businesses will be prohibited by section 108(a)(2)(A) from rendering the devices inoperative. For vehicles manufactured before that time, such an entity should ensure that removal of the adjusters does not otherwise render inoperative the compliance of the vehicle with a safety standard.

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

Sincerely,

John Womack Acting Chief Counsel

ref:105#121 d:4/19/93

1993

ID: 8228a

Open

Mr. Ken Liebscher
President/Director
Electric Car Company
P.O. Box 618
Everson, WA 98247

Dear Mr. Liebscher:

We have reviewed your application of January 16, 1995, for temporary exemption of the M1-6 electric passenger car from six Federal Motor Vehicle Safety Standards, on the basis that compliance would cause Electric Car Company ("Electric Car") substantial economic hardship. We need some additional information before we are able to consider the application further.

A hardship applicant must provide corporate balance sheets and income statements for the three fiscal years preceding the filing of the application. You have filed statements for E.T.C. Industries and only for two years, those ending December 31, 1992, and December 31, 1993. This is acceptable since your submission indicates that E.T.C. Industries (apparently a Canadian corporation) is the parent of Electric Car (a Nevada corporation incorporated on November 24, 1993), and that "the consolidated financial statements [that you have provided us] include the accounts of Electric Car . . . ." We would like to have balance sheets and income statements for Electric Car for the year ending December 31, 1994, but if these are not yet available, we would be willing to accept statements for E.T.C. Industries (or its predecessor Bradsue Resources, Ltd.) for the year ending December 31, 1991. If the information reflected in the financial statements is given in Canadian dollars, please provide a key indicating the value in American dollars on December 31 of each year for which the information is provided.

In order to grant a hardship application, the Administrator must find that an applicant has tried to comply in good faith with each standard for which exemption is requested. Your application contains no information upon which the Administrator could make such a finding with respect to any of the six standards for which you seek exemption. In spite of your confidence about the MI-6's performance in a 30 mph barrier impact, the fact that the MI-6 uses equipment installed in motor vehicles that are certified as meeting the Federal motor vehicle safety standards does not mean that the MI-6 will meet any of the six standards with the equipment installed. We therefore suggest that you supplement the application with information demonstrating that you have examined each of the six standards in some detail, and have made a study of possible compliance problems and possible solutions to them. It is permissible to ask to be excused from only a portion of a standard, and you may find, after studying your problems, that you will be able to narrow your requests for exemption from Standards No. 201 and 208. We assume with respect to the latter that you are concerned with the airbag requirements. Although your letter speaks of "restraint systems", we would like your further identification of them as two-point (lap belt) or three-point (lap and shoulder belt) systems.

Although you appear to be a manufacturer in the start- up stage and one whose total motor vehicle production in the year preceding the filing of the application was far less than 10,000, you have omitted to provide the number of motor vehicles that you produced in 1994 which is information that we require. Please do so in your response to this letter.

When we have received this information, we shall prepare a notice requesting public comment which will appear in the Federal Register. We shall notify you when the Administrator has made a decision. We expect this to be three to four months after we have received your further submission. If you have any questions on our requirements, you may call Taylor Vinson of this Office (202-366-5263).

Sincerely,

Philip R. Recht Chief Counsel ref:555 d:2/13/95

1995

ID: 8234

Open

Mr. Donald Ray McCray
620694, Darrington Unit
Rt. 3
P.O. Box 59
Rosharon, TX 77583

Dear Mr. McCray:

This responds to your letter of November 16, 1992 to former Secretary Card. Your letter has been referred to my office for reply, because the National Highway Traffic Safety Administration (NHTSA) administers Federal regulations for motor vehicle safety.

Your letter expresses concern about the buses that the Texas Department of Criminal Justice (DCJ) uses to transport inmates. You believe the buses are unsafe and operated in violation of Federal law. As explained below, it appears the DCJ did not violate any NHTSA regulation.

The National Traffic and Motor Vehicle Safety Act (15 U.S.C. 1381 et seq., the Safety Act) authorizes this agency to issue Federal motor vehicle safety standards (FMVSS's) that apply to the manufacture and sale of new motor vehicles and new items of motor vehicle equipment. Under the Safety Act, each person selling a new bus must ensure that the bus complies with the FMVSS's for buses. NHTSA's requirements for vehicle seats are set forth in FMVSS No. 207, Seating Systems. However, that standard does not require seat covers or pads for any bus seat. Also, there is no FMVSS that requires buses to be heated.

NHTSA does not regulate the use of motor vehicles, such as the speed at which the DCJ must operate the bus. Individual states, not the Federal government, have authority over the use of vehicles. Texas state officials would be best able to answer your concerns about the manner in which you were transported.

I hope you find this information helpful. If you have any other questions, please contact us.

Sincerely,

John Womack Acting Chief Counsel ref:207 d:2/9/93

1993

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.