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NHTSA Interpretation File Search

Overview

NHTSA's Chief Counsel interprets the statutes that the agency administers and the standards and regulations that it issues. Members of the public may submit requests for interpretation, and the Chief Counsel will respond with a letter of interpretation. These interpretation letters look at the particular facts presented in the question and explain the agency’s opinion on how the law applies given those facts. These letters of interpretation are guidance documents. They do not have the force and effect of law and are not meant to bind the public in any way. They are intended only to provide information to the public regarding existing requirements under the law or agency policies. 

Understanding NHTSA’s Online Interpretation Files

NHTSA makes its letters of interpretation available to the public on this webpage. 

An interpretation letter represents the opinion of the Chief Counsel based on the facts of individual cases at the time the letter was written. While these letters may be helpful in determining how the agency might answer a question that another person has if that question is similar to a previously considered question, do not assume that a prior interpretation will necessarily apply to your situation.

  • Your facts may be sufficiently different from those presented in prior interpretations, such that the agency's answer to you might be different from the answer in the prior interpretation letter;
  • Your situation may be completely new to the agency and not addressed in an existing interpretation letter;
  • The agency's safety standards or regulations may have changed since the prior interpretation letter was written so that the agency's prior interpretation no longer applies; or
  • Some combination of the above, or other, factors.

Searching NHTSA’s Online Interpretation Files

Before beginning a search, it’s important to understand how this online search works. Below we provide some examples of searches you can run. In some cases, the search results may include words similar to what you searched because it utilizes a fuzzy search algorithm.

Single word search

 Example: car
 Result: Any document containing that word.

Multiple word search

 Example: car seat requirements
 Result: Any document containing any of these words.

Connector word search

 Example: car AND seat AND requirements
 Result: Any document containing all of these words.

 Note: Search operators such as AND or OR must be in all capital letters.

Phrase in double quotes

 Example: "headlamp function"
 Result: Any document with that phrase.

Conjunctive search

Example: functionally AND minima
Result: Any document with both of those words.

Wildcard

Example: headl*
Result: Any document with a word beginning with those letters (e.g., headlamp, headlight, headlamps).

Example: no*compl*
Result: Any document beginning with the letters “no” followed by the letters “compl” (e.g., noncompliance, non-complying).

Not

Example: headlamp NOT crash
Result: Any document containing the word “headlamp” and not the word “crash.”

Complex searches

You can combine search operators to write more targeted searches.

Note: The database does not currently support phrase searches with wildcards (e.g., “make* inoperative”). 

Example: Headl* AND (supplement* OR auxiliary OR impair*)
Result: Any document containing words that are variants of “headlamp” (headlamp, headlights, etc.) and also containing a variant of “supplement” (supplement, supplemental, etc.) or “impair” (impair, impairment, etc.) or the word “auxiliary.”

Search Tool

NHTSA's Interpretation Files Search



Displaying 321 - 330 of 16510
Interpretations Date
 search results table

ID: 7331

Open

Christian Hammarskjold
Vice President
USSC Group, Inc.
20 Union Hill Road
West Conshohocken, PA 19428

Dear Mr. Hammarskjold:

This responds to your letters of May 28, 1992 concerning suspension seats. Your first letter states that you have been asked by SCRTD in Los Angeles to develop a system that will allow your suspension seats for the driver's seating position in transit buses to tilt from side-to-side. Your letter states:

In addition, USSC is concerned that there are not applicable FMVSS requirements that address a side-to- side strength requirements. 207/210 requires a pull from the front of the seat. What happens if there is a side impact on a suspension seat that has a ball and socket joint. Are there any applicable performance requirements that may apply to such a system.

With respect to seats which tilt side-to-side, you are correct that Federal Motor Vehicle Safety Standard No. 207, Seating Systems, does not include a performance requirement addressing side-to-side strength. Standard No. 207 requires certain specified forces to be applied only in a forward direction and in a rearward direction. All seats, in all vehicles, except for side-facing seats or passenger seats in buses, must be capable of withstanding these forces when tested in accordance with the S5 of Standard No. 207.

However, you should be aware that manufacturers are subject to the requirements in 151-159 of the Safety Act concerning the recall and remedy of products with safety defects. The defect responsibility is a broad one and would include the side-to-side performance of your seat. In the event that NHTSA or a manufacturer determines that a vehicle containing your seat has a safety-related defect, the manufacturer would be responsible for notifying purchasers of the defective equipment and remedying the problem free of charge. You may be interested in a current proposal to amend Standard No. 207 to establish revised test procedures for pedestal seats. I have enclosed a copy of the notice for your information.

Your second letter asks when shoulder belts will be required on suspension seats. The safety belt installation requirements are set forth in Standard No. 208, Occupant Crash Protection. This standard specifies requirements based on vehicle type and seating position within the vehicle, not based on seat design. I have limited the following discussion of safety belt requirements to trucks and buses, as I am unaware of any passenger cars or multipurpose passenger vehicles which contain suspension seats. As explained below, shoulder belts are required at every forward-facing outboard seating position in trucks with a GVWR of 10,000 pounds or less; at the driver's seating position and at every forward-facing outboard seating position in buses, other than school buses, with a GVWR of 10,000 pounds or less; and at the driver's and right front passenger's seating positions in school buses with a GVWR of 10,000 pounds or less. Shoulder belts are not required at any other seating positions in these vehicles or in trucks or buses with a GVWR of more than 10,000 pounds.

The requirements for trucks are contained in sections S4.2 and S4.3 of Standard No. 208. Sections S4.2.2 and S4.2.3 of Standard No. 208 give vehicle manufacturers a choice of three options for providing occupant crash protection in trucks with a GVWR of 10,000 pounds or less, manufactured on or after September 1, 1991 and before September 1, 1997. Option 1, set forth in S4.1.2.1, requires vehicle manufacturers to provide automatic protection at the front outboard seating positions, lap or lap/shoulder belts at all other seating positions, and either meet the lateral crash protection and rollover requirements by means of automatic protection systems or have manual safety belts at the front outboard seating positions such that those positions comply with the occupant protection requirements when occupants are protected by both the safety belts and the automatic protection. Option 2, set forth in S4.1.2.2, requires vehicle manufacturers to provide a lap or a lap/shoulder safety belt at every seating position, have automatic protection for the front outboard seats, and have a warning system for the safety belts provided. Option 3, set forth in S4.1.2.3 requires the manufacturer to install lap or lap/shoulder safety belts at every seating position and to have a warning system for those belts. In addition, each Type 2 seat belt assembly (i.e., lap/shoulder safety belts) installed at a front outboard seating position in trucks with a GVWR of 8,500 pounds or less must satisfy the dynamic testing requirements in S4.6.

S4.2.4 of Standard No. 208 specifies that a Type 2 seat belt assembly must be installed at each forward-facing rear outboard seating position in trucks with a GVWR of 10,000 pounds or less, manufactured on or after September 1, 1991.

Section S4.2.5 of Standard No. 208 specifies a phase-in of trucks and buses with a GVWR of 8,500 pounds or less that must satisfy the requirements of S4.1.2.1 (Option 1 above). Twenty percent of trucks and buses manufactured on or after September 1, 1994 and before September 1, 1995 must meet this requirement; 50 percent of trucks and buses manufactured on or after September 1, 1995 and before September 1, 1996; 90 percent of trucks and buses manufactured on or after September 1, 1996 and before September 1, 1997. All trucks and buses with a GVWR of 8,500 pounds or less manufactured on or after September 1, 1997 must comply with the requirements of S4.1.2.1.

Section 4.3.1 gives vehicle manufacturers a choice of two options for providing occupant crash protection in trucks with a GVWR of more than 10,000 pounds manufactured on or after September 1, 1990. Option 1, set forth in S4.3.1.1, requires vehicle manufacturers to provide an automatic protection system at all seating positions that meets the frontal and lateral crash protection and rollover requirements. Option 2, set forth in S4.3.1.2 requires vehicle manufacturers to install lap or lap/shoulder belts at every seating position. In addition, S4.3.2 specifies that, if a manufacturer chooses to comply with Option 2, the lap belt or pelvic portion of a lap/shoulder belt must have either an emergency locking retractor (ELR) or an automatic locking retractor (ALR).

The requirements for buses are contained in S4.4 of Standard No. 208. Section 4.4.1 gives vehicle manufacturers a choice of two options for providing occupant crash protection in buses manufactured on or after September 1, 1990. Option 1, set forth in S4.4.1.1, requires vehicle manufacturers to provide an automatic protection system at the driver's seating position that meets the frontal and lateral crash protection and rollover requirements. Option 2, set forth in S4.4.1.2 requires vehicle manufacturers to install a lap or lap/shoulder belt at the driver's seating position. In addition, S4.4.2.2 specifies that, if a manufacturer chooses to comply with Option 2, the lap belt or pelvic portion of the lap/shoulder belt must have either an ELR or an ALR.

Section S4.4.3 requires buses, other than school buses, with a GVWR of 10,000 pounds or less, manufactured on or after September 1, 1991, to have a lap/shoulder belt at the driver's seating position and at every front and rear forward-facing seating position, and either a lap belt or a lap/shoulder belt at every other seating position. School buses with a GVWR of 10,000 pounds or less, manufactured on or after September 1, 1991, are required to have a lap/shoulder belt at the driver's and right front passenger's seating positions, and either a lap belt or lap/shoulder belt at every other seating position. As mentioned previously, buses with a GVWR of 8,500 pounds or less manufactured on or after September 1, 1994 are subject to the phase-in requirement for automatic occupant protection.

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

Sincerely,

Paul Jackson Rice Chief Counsel

Attachment

ref:207#208 d:8/10/92

1992

ID: 7333

Open

Mr. Joe Wos
A & D Lock & Key
238 Faithway Dr.
Seffner, FL 33584

Dear Mr. Wos:

This responds to your May 26, 1992 letter asking whether it is "legal to repair an automobile that has an airbag deployed and not put the air bag back in."

I am enclosing a copy of a January 19, 1990 letter to Ms. Linda L. Conrad, that explains whether a used car dealer has an obligation to replace a deployed air bag prior to selling the car. The same statutory and regulatory considerations that applied to that situation would apply to the replacement of a damaged air bag steering column (after the air bag has deployed) with a steering column without an air bag.

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

Sincerely,

Paul Jackson Rice Chief Counsel

Enclosure

ref:208 d:6/24/92

1992

ID: 7339

Open

C.N. Littler
Coordinator, Regulatory Affairs
Motor Coach Industries
552 West Stutsman Avenue
Pembina, North Dakota 58271

Dear Mr. Littler:

This responds to your letter of May 25, 1992, concerning possible federal preemption of a bill that has been introduced in the New York State legislature. The bill would require any intercity bus that is operated in the State of New York manufactured on or after July 1, 1993 to be equipped with safety belts at every seating position, unless the bus is operated by a motor carrier which does not operate annually more than 100 days or more than 10,000 vehicle miles within the State of New York. After reviewing the copy of this bill enclosed with your letter, we have concluded that it appears to be preempted by Federal law, to the extent that it requires the installation of seat belts for passenger seats of buses that have a gross vehicle weight rating (GVWR) of more than 10,000 pounds and that are not State-owned vehicles. This conclusion is explained in detail below.

Section 103(d) of the National Traffic and Motor Vehicle Safety Act (the Safety Act; 15 U.S.C. 1392(d)) states:

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. Nothing in this section shall be construed to prevent ... any State or political subdivision thereof from establishing a safety requirement applicable to motor vehicles or motor vehicle equipment procured for its own use if such requirement imposes a higher standard than that required to comply with the otherwise applicable Federal standard. Section 103(d) preempts New York's proposed law if that law covers the same aspect of performance as an applicable Federal motor vehicle safety standard, and is different from the applicable Federal standard, with one exception. It would not preempt the law to the extent that the law imposes a higher level of performance upon vehicles procured for use by the State or any of its political subdivisions.

In this case, Standard No. 208, Occupant Crash Protection (49 CFR 571.208) "specifies performance requirements for the protection of vehicle occupants in crashes." (S1 of Standard No. 208). Section S4.4 of Standard No. 208 specifies performance requirements for the protection of bus occupants. Accordingly, there is a Federal motor vehicle safety standard in effect and that standard establishes performance requirements for occupant protection in buses. The question then is whether the proposed New York State law, which applies to the same aspect of performance, is either identical to Standard No. 208's requirements.

The applicable performance requirements for occupant protection at passenger seats in buses manufactured on or after September 1, 1991, differ, depending upon whether the vehicle has a GVWR of 10,000 pounds or less or a GVWR of more than 10,000 pounds. For buses (other than school buses) with a GVWR of 10,000 pounds or less, S4.4.3.2 of Standard No. 208 requires a lap/shoulder belt to be provided at every forward-facing outboard seating position, and either a lap belt or a lap/shoulder belt to be provided at every other seating position. New York's law, requiring seat belts at every seating position in buses, would not be preempted with respect to these small buses if it were interpreted to require the same types of safety belts as required under Standard No. 208.

With respect to buses with a GVWR of more than 10,000 pounds, manufactured on or after September 1, 1991, S4.4.3.1 of Standard No. 208 requires compliance with either of two options for the driver's seating position, the installation of an automatic restraint or the installation of either a lap belt or lap/shoulder belt, and does not require any type of occupant protection system at any other seating position. NHTSA expressly determined that there is not a safety need for safety belts or another type of occupant crash protection at these seating positions. See, 39 FR 27585, July 30, 1974. With respect to these large buses, the New York bill would be preempted to the extent that it requires seat belts to be installed at seating positions other than the driver's seating position.

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

Sincerely,

Paul Jackson Rice Chief Counsel

ref:VSA#208 d:8/19/92

1992

ID: 7353

Open

Mr. Steven Rovtar
General Manager
Blazer International Corp.
2960 Hart Drive
Franklin Park, IL 60131

Dear Mr. Rovtar:

This responds to your letter of May 28, 1992, asking for "a written ruling" that the product you described "meets current SAE/DOT guidelines."

The product is intended for the vehicle towing trailer market. Currently, lamps on towed vehicles are activated by splicing into the wiring harness of the towing vehicle. Your product eliminates the need for this type of hard wiring. This product "utilizes photodetectors to read the output of the towing vehicle's stop and turn signal lamps, and in turn activate the lamps of the towed vehicle." Photodetectors are embedded in suction cups which are attached to the towing vehicle's stop and turn signal lamps. The device is plugged into the cigarette lighter receptacle of the towing vehicle, and the harness of the towed vehicle is plugged into the device. When the stop lamp or turn signals of the towing vehicle are activated, the photodetectors read the light emitted, and the towed vehicle's lamps are activated via the completed circuit.

For purposes of this discussion we shall assume that the device is intended for aftermarket distribution. Further, from your description, it appears to be the type of device that is simple enough to be installed by the vehicle owner. The product itself is not directly regulated by Federal Motor Vehicle Safety Standard No. 108 Lamps, Reflective Devices and Associated Equipment, because it is not replacement equipment intended to replace original equipment. Its installation on a vehicle in use by the vehicle's owner is outside the prohibition contained in the National Traffic and Motor Vehicle Safety Act. That prohibition forbids "manufacturers, distributors, dealers, and motor vehicle repair businesses" from "rendering inoperative, in whole or in part," mandated safety equipment such as stop lamps and turn signal lamps.

Were the device installed by a person in these categories we would be concerned that the addition of the suction cups would partially obscure the original equipment stop and turn signal lamps and, thus, render them "partially inoperative" within the meaning of the prohibition. That concern is not lessened by the fact that the device may be installed by a person not covered by the prohibition, such as the owner of the towing vehicle. However, as a practical matter, we realize that the safety impact may be minimal since the presence of the trailer will obscure the lamps on the towing vehicle to which the suction cups are applied.

We cannot advise you on whether the product meets SAE requirements. The legality of the use of equipment that is not regulated by NHTSA is determinable under the laws of States where the towing-towed vehicle combinations are operated. We are unable to advise you on these laws, and suggest that you write the American Association of Motor Vehicle Administrators, 4600 Washington Boulevard, Arlington, Va. 22203, for an opinion.

Sincerely,

Paul Jackson Rice Chief Counsel

ref:108 d:6/17/92

1992

ID: 7378

Open

Mr. Berkley C. Sweet
Vice President
School Bus Manufacturers Institute
7508 Ben Avon Road
Bethesda, MD 20817

Dear Mr. Sweet:

This responds to your letter of May 29, 1992 asking what minimum passenger size (weight and height) was used in developing the requirements of Federal Motor Vehicle Safety Standard No. 222, School Bus Passenger Seating and Crash Protection. You noted that several school districts are now transporting newborn and under-school-age children to schools which provide day-care service, and that you have received inquiries concerning the "limits, if any, on passenger size and age that can be safely transported on school bus seats."

The National Traffic and Motor Vehicle Safety Act, defines a "school bus" as a vehicle that "is likely to be significantly used for the purposes of transporting primary, preprimary, or secondary school students to or from such schools or events related to such schools." NHTSA has never specified a passenger size and/or age range applicable to the compartmentalized school bus seats required by Standard No. 222. In developing the standard, however, NHTSA considered the range of sizes and ages of children attending preprimary through secondary school.

NHTSA has developed approximate size and weight guidelines for child restraint systems. For children from birth to 9-12 months (or up to 20 pounds), NHTSA recommends use of an infant or convertible seat facing the rear. For children from 9-12 months to 4 years (or 20 pounds to 40 pounds), NHTSA recommends use of a convertible or toddler seat. If a school is transporting children in these age and weight ranges, they may want to consider using a school bus with safety belts to secure a child restraint system. I have enclosed a consumer information sheet titled "Transporting Your Children Safely" for your information.

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

Sincerely,

Paul Jackson Rice Chief Counsel

Enclosure

ref:571 d:7/28/92

1992

ID: 7379

Open

Mr. Mark W. Russo
1480 West Macopin Road
West Milford, NJ 07480

Dear Mr. Russo:

This responds to your letter of May 27, 1992, to Mr. Charles Gauthier of this agency, which enclosed a copy of R-Bar test data provided by Micho Industries. You requested an "official `review and comment'" regarding the applicability of Safety Standard 222 to the R-Bar Passenger Restraint System and related issues.

The National Highway Traffic Safety Administration (NHTSA) has addressed the use of "safety bars" in school buses on several occasions in the past. Enclosed for your information are copies of five NHTSA letters which address this subject and which, we believe, will also address your concerns. The letters are addressed to Mr. Michael F. Hecker of Micho Industries, dated May 14, 1992; Mr. Scott K. Hiler of the C. E. White Company, dated January 31, 1991; Honorable Robert J. Lagomarsino, Member of Congress, dated January 8, 1990; and Mr. Joseph F. Mikoll of Transportation Equipment Corporation, dated March 10, 1989 and November 3, 1988.

If, after reviewing the enclosed materials, you still have questions concerning this matter, please feel free to contact Mr. Walter Myers of my staff at this address or at (202) 366- 2992.

Sincerely,

Paul Jackson Rice Chief Counsel

Enclosures Ref: #222 d:7/l3/92

1970

ID: 7383

Open

Mr. Steven Henderson
Department of Psychology
McGill University
1205 Dr. Penfield
Montreal PQ H3A 1B1
Canada

Dear Mr. Henderson:

This responds to your letter of August 11, 1992, commenting on my response to you of June 29 with respect to the relationship of your motorcycle headlamp warning device to S5.6 of Federal Motor Vehicle Safety Standard No. 108, the provisions regulating the modulation of motorcycle headlighting systems.

In my letter, I informed you that the device would not comply with the requirements of Standard No. 108, and would affect compliance of the taillamps and turn signal lamps with the standard. I also advised you that if a motorcycle owner could install the device, there would be no violation of Federal law, and that the legality of its use would be determinable under the laws of the individual American states.

In your latest letter, you "agree that the device contravenes the letter of DOT Standard No. 108 as it presently stands." However, "if the device violates the letter of the law while satisfying the spirit or inferred intent of the law in each case," you believe "that the granting of an exception should be considered by the NHTSA."

As I understand it, your principal argument as raised on page 2 of your August 11 letter is that it is improper to consider your device under S5.6 as it is not a motorcycle headlamp modulating system as described in that section. Thus our objections to modulation rate and intensity, based upon the specifications of that section, are misplaced.

Assuming for the sake of argument that you are correct, your device becomes subject to another provision of Standard No. 108 that I did not mention in my June letter. Paragraph S5.1.3 prohibits the installation, as original equipment, of any motor vehicle equipment that impairs the effectiveness of lighting equipment that Standard No. 108 requires. Application of paragraph S5.1.3 returns us to my comments in June that your device would affect compliance of the taillamps and turn signal lamps with Standard No. 108. The taillamps would no longer be steady-burning, as required by S5.5.10(d). It would appear that the turn signal rate would also cease to comply with the flash rate of 60-120 per minute specified by SAE requirements incorporated by reference in Standard No. 108. Thus, under paragraph S5.1.3, installation of the device as aftermarket equipment, if performed by a manufacturer, dealer, distributor, or motor vehicle repair business would continue to be prohibited by Federal law.

Your latest letter also addresses the issues of taillamp and turn signal conformance. You argue that

"a taillight's purpose is to mark the rear of a motor vehicle during nighttime driving when it would otherwise be invisible. For this reason the law requires that taillights be lit at night. The law makes no such requirement during the day. The law does require that motorcycle headlights be lit during the day. * * * At night the taillight will always be steady-burning as required by S5.5.10(d) because the flasher device is only able to induce taillight flicker during daylight hours due to the photocell circuitry incorporated to prevent the headlamp from generating strobe effects at night. Therefore, the device is in compliance with S5.5.10(d) as it will cause the taillight to flash only at times that it is not required by law to be lit."

The law that applies to your argument is Standard No. 108. Paragraph S5.5.7(b) states in pertinent part that "On each . . . motorcycle . . . when the headlamps are activated in a steady-burning state, the taillamps . . . shall also be activated." Thus, under Standard No. 108 the taillamps must always be activated when the headlamps are activated.

The device also functions through the horn button to cause the turn signal lamps to flash at a rate higher than the maximum permitted by Standard No. 108. In your view, the situation in which the turn signal and horn button are in simultaneous use will be rare. However, if they are used together, "the SAE-specified turn signal flash of 1-2 hz will be perceptually present, the hazard signal flash of 10 hz will also be perceptually present at the same location, and the two signals will not interfere."

We consider that paragraph S5.1.3 applies here as well, and that a flash of 10 hz would impair the effectiveness of the required turn signal flash of 1-2 hz. There could be another undesirable consequence as well. When NHTSA proposed allowing modulating headlamps, commenters were concerned that the flashing might trigger a photic reaction, akin to an attack of epilepsy, in onlookers. NHTSA observed that the reaction was most likely to occur at a frequency of 10 hz against a very dark background. Although your device does not operate at night, its frequency is at the threshold where photic reactions can occur, and we want to bring this fact to your attention.

The agency shares your concern with improving the detectability of motorcycles and their riders. You have suggested writing an "exception" in Standard No. 108 for a period of one or two years so that the safety benefits of the device can be evaluated. We have a procedure under which a manufacturer of motorcycles can petition for a temporary exemption of up to two years, applicable to 2,500 vehicles per year, on the basis that it would facilitate the development and field evaluation of an innovative safety device. Perhaps you can interest a manufacturer in petitioning for a temporary exemption from Standard No. 108 on this basis.

You may also petition the agency for rulemaking to amend Standard No. 108 in a manner that would allow your device. A petition must set forth facts which it is claimed establish that a change in the standard is necessary, and a brief description of the changes which should be made. This means that you should show how your device is expected to improve safety, or, at a minimum, not decrease the existing level of safety. The agency has no plans to initiate rulemaking on its own initiative to permit your device.

Sincerely,

Paul Jackson Rice Chief Counsel

ref:108 d:8/28/92

1992

ID: 7396

Open

Mr. Matt Decker
Project Engineer
Wenger Corporation
555 Park Drive
Owatonna, MN 55060

Dear Mr. Decker:

We have received your letter of October 25, 1994, petitioning for exemption from S5.7 of Motor Vehicle Safety Standard No. 108, which establishes conspicuity requirements for large trailers.

Your letter states that Wenger Corporation "manufactures and sells a complete line of music education and performance equipment" including "Wenger Showmobiles, mobile performance stages in trailer form." The reason for your request is that "[t]he addition of the conspicuity striping is unacceptable for many of our potential customers because of how it would impact their graphics on the sides and rear of the product."

The agency's exemption authority is prescribed by statute, and has been implemented by a regulation, 49 CFR Part 555, a copy of which I enclose. Your letter does not contain the information needed for an exemption petition. There appear to be two bases upon which Wenger could apply for an exemption, under the hardship provisions of Sec. 555.6(a) and the safety level provisions of Sec. 555.6(d). If Wenger submits an application that contains the information required by Part 555, we shall give the matter further consideration. The desire of manufacturers to use retroreflective logos as a substitute for conspicuity marking was considered in the rulemaking proceedings that established S5.7 but was not adopted because the agency saw greater safety benefits in adopting a standardized pattern.

We have studied the photo in your product literature that shows the trailer ready for performance. It would appear that the upper rear conspicuity treatment is not visible to an audience when the trailer is open. Noting that Wenger

provides an optional skirt for the platform, we see that the skirt hides the lower side and rear conspicuity treatment required by S5.7. We believe that the simplest solution is to provide the skirt as standard equipment with the trailer.

Sincerely,

Philip R. Recht Chief Counsel ref:108#555 d:11/16/94

1994

ID: 7400

Open

Mr. Le Van Lac
Vice President
Pioneer Electronic Services, Inc.
P.O. Box 1760
Long Beach, CA 90801-1760

Dear Sir:

This responds to your letter of June 5, 1992, with reference to your plan to sell a new car speaker in the U.S. It will be installed "in the rear deck" with the "Pioneer brand name to be printed on the rear side of the speaker cabinet." The brand name will be lit "with blue color at night" and "there are 8 lamps for each left and right speaker." The brightness of the lamp is "just 1/40 of the high mount stop lamp." You believe that the "illuminated speaker will not impair the effectiveness of the existing lighting equipment installed into the car."

We understand that the speaker will be sold as aftermarket equipment, not as original equipment. Installation of the speaker by a manufacturer, distributor, dealer, or motor vehicle repair business is permissible under the National Traffic and Motor Vehicle Safety Act as long as it does not render inoperative, in whole or in part, any of the rear view mirror or lighting equipment that is required by Federal Motor Vehicle Safety Standard No. 108. The drawing you enclosed, and the description of the speaker, are insufficient for us to provide you a definitive interpretation. For instance, it is not possible to tell whether the light is oriented to the rear, so that it will be seen through the rear window, adjacent to the center highmounted stop lamp, or whether it is oriented to the front, so that it will reflect in the rear view mirror. In either location, it may have the potential to affect negatively the safety performance of rear view mirrors or the rear center stop lamp. Taylor Vinson of this Office telephoned your company on June 22, suggesting that it furnish a clearer drawing and a better description. As of the date of this response, we have heard nothing further from you.

Further, there are state laws that prohibit illumination in vehicle interiors under certain conditions. We are unable to advise you of these laws. The American Association of Motor Vehicle Administrators, 4600 Wilson Boulevard, Arlington, Va. 22203, may be able to provide you with an interpretation.

Sincerely,

Paul Jackson Rice Chief Counsel

ref:VSA d:7/31/92

1992

ID: 7402

Open

Mr. Jeffrey Puentes, President
Sacramento Registration Service
11684 Ventura Blvd., Suite 271
Studio City, CA 91604

Dear Mr. Puentes:

This responds to your request for information on laws and regulations administered by this agency that would apply to motorcycle frames, a product that your client wishes to manufacture and sell. Since motorcycle frames would constitute "motor vehicle equipment," the product would be subject to NHTSA's jurisdiction as follows.

Your letter stated that your client intends the frames to be sold to the "retail public" and to be used to replace frames of damaged Harley Davidson motorcycles. In a telephone conversation with Dorothy Nakama of my staff, you stated that your client is a domestic manufacturer, and the term "serial number" in your letter meant vehicle identification numbers (VINs), as specified by this agency.

The National Traffic and Motor Vehicle Safety Act (the Safety Act) authorizes this agency to regulate "motor vehicles" and items of "motor vehicle equipment." Section 102(4) of the Safety Act (15 U.S.C. 1391(4)) defines "motor vehicle equipment," in part, as:

any system, part, or component of a motor vehicle as originally manufactured or any similar part or component manufactured or sold for replacement or improvement of such system, part, or component ...

In your letter, you stated that your client intends its motorcycle frames to be used to replace frames in damaged motorcycles. Thus, the motorcycle frames would be "motor vehicle equipment" since they are "similar parts" that will be "sold for replacement" of a part.

If your client's motorcycle frames should be installed into a motorcycle by a commercial business, Section 108(a)(2)(A) of the Safety Act could affect such installations. That section of the Act requires manufacturers, distributors, dealers, and motor vehicle repair businesses to ensure that they do not 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 (FMVSS).

The above-named businesses could sell the motorcycle frames but could not install them if the installation would adversely affect a motorcycle's compliance with any of the applicable FMVSS's. In the first instance, it would be the responsibility of these entities to determine whether there is any possibility of such an effect.

The prohibitions of Section 108(a)(2)(A) do not apply to the actions of a vehicle owner in adding to or otherwise modifying his or her motorcycle. Thus, a motorcycle owner would not violate the Safety Act by replacing the motorcycle frame, even if doing so would adversely affect some safety feature in his or her motorcycle.

Manufacturers of motor vehicle equipment such as motorcycle frames are also subject to the requirements in sections 151- 159 of the Safety Act (15 U.S.C. 1411-1419) concerning the recall and remedy of products with defects related to motor vehicle safety. The Safety Act specifies that if either your client's company or this agency determines that a safety-related defect exists in the motorcycle frame, that company as the manufacturer must notify purchasers of the safety-related defect and must either:

(1) repair the product so that the defect is removed; or

(2) replace the product with identical or reasonably equivalent products which do not have a defect.

Whichever of these options is chosen, the manufacturer must bear the full expense and cannot charge the owner for the remedy if the equipment was purchased less than 8 years before the notification campaign.

You also asked about vehicle identification numbers (VINs) (referred to in your letter as "serial numbers") and whether motorcycle frames must be identified with VINs. As you may be aware, Federal Motor Vehicle Safety Standard No. 115; Vehicle identification number- basic requirements specifies that vehicles manufactured in one or more stages must have a VIN assigned by the manufacturer. Your client is a motorcycle frame manufacturer, not a motor vehicle manufacturer. Therefore, your client should not assign VINs to the motorcycle frames that it manufactures. Please note, however, that NHTSA regulations would not preclude your client from assigning "serial numbers" to the frames it manufactures, if the numbers are for its own inventory, recordkeeping, or other internal purposes.

You further requested information about laws regulating retail businesses that may affect your client. Other than the matters that have previously been discussed in this letter, NHTSA has no laws or regulations affecting your client as a retail business selling motorcycle frames. Regulation of retail businesses is generally a matter of state law. For more specific information, I would suggest you investigate the requirements for each state in which your client intends to begin a retail establishment.

For your information, I have enclosed a copy of an information sheet for new manufacturers of motor vehicles and motor vehicle equipment. This sheet gives a brief description of our regulations and explains how to obtain copies of those regulations. If you have any further questions, please feel free to contact Dorothy Nakama of my staff at this address or by telephone at (202) 366-2992.

Sincerely,

Paul Jackson Rice Chief Counsel

Enclosure ref:VSA#115 d:7/l3/92

1970

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.