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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 14901 - 14910 of 16514
Interpretations Date
 search results table

ID: nht95-4.35

Open

TYPE: INTERPRETATION-NHTSA

DATE: September 25, 1995

FROM: John Womack -- Acting Chief Counsel, NHTSA

TO: Karey Clock -- Moriden America, Inc.

TITLE: NONE

ATTACHMT: ATTACHED TO 8/7/95 LETTER FROM KAREY CLOCK TO JOHN WOMACK (OCC 11120)

TEXT: Dear Ms. Clock:

This responds to your inquiry about testing procedures in Federal Motor Vehicle Safety Standard No. 302, Flammability of Interior Materials. In particular, you asked whether certain materials, which you list as flat woven, double raschel, tricot, and moq uette, should be tested by using support wires. The short answer is that during NHTSA compliance testing, support wires may be used in testing any specimen that "softens or bends at the flaming end so as to cause erratic burning." However, the agency ca nnot specify, outside of the context of a compliance test, whether a given type of material falls in this category.

By way of background information, NHTSA is authorized to issue Federal motor vehicle safety standards that set performance requirements for new motor vehicles and items of motor vehicle equipment. NHTSA does not, however, approve or certify any vehicles or items of equipment. Instead, the Safety Act establishes a "self-certification" process under which each manufacturer is responsible for certifying that its products meet all applicable safety standards.

You ask about Standard No. 302, which specifies requirements for the flammability resistance of materials in the occupant compartment of new vehicles. Along with specified performance requirements, Standard No. 302 sets forth conditions and procedures u nder which NHTSA tests materials for compliance with the standard. Section S5.1.3 of the standard states, in relevant part, that

The test specimen is inserted between two matching U-shaped frames of metal stock 1-inch wide and 3/8 of an inch high. The interior dimensions of the U-shaped frames are 2 inches wide by 13 inches long. A specimen that softens and bends at the flami ng end so as to cause erratic burning is kept horizontal by supports consisting of thin, heat resistant wires, spanning the width of the U-shaped frame under the specimen at 1-inch intervals. A device that may be used for supporting this type of materia l is an additional U-shaped frame, wider than the U-shaped frame containing the specimen, spanned by 1 -- mil wires of heat resistant composition at 1-inch intervals, inserted over the bottom U-shaped frame.

You ask whether certain specific types of materials could be tested using the supplemental wire described in S5.1.3. The agency uses supplemental wires when there is a reasonable expectation that a test specimen will soften and bend while burning. The agency bases its determination about the likelihood of softening and bending on observations made in previously-conducted compliance tests of the specimen, or on the agency's knowledge of or testing experience with components that are highly similar to a test specimen. However, since a decision to use wires is made only in the context of compliance testing, we regret that we cannot tell you at this time whether support wires will be used to test the materials you listed.

Vehicle manufacturers are not required by Standard No. 302 to test the flammability of their vehicles in the manner specified in the standard. The standard only sets the procedure that the agency will use in its compliance testing. Thus, a vehicle manu facturer is not required to use wires only with specimens that are anticipated to soften or bend. However, vehicle manufacturers must exercise due care in certifying that their product will meet Standard No. 302's requirements when tested by NHTSA accor ding to the specified procedures of the standard. Whether a vehicle manufacturer has met that due care standard when using support wires in situations other than those described in Standard No. 302 is a matter that can be determined only in the context of an enforcement proceeding.

I hope you find this information helpful. If you have any other questions, please contact Marvin Shaw at this address or by phone at (202) 366-2992.

ID: nht95-4.36

Open

TYPE: INTERPRETATION-NHTSA

DATE: September 25, 1995

FROM: John Womack -- Acting Chief Counsel, NHTSA

TO: Winston Sharples -- President, Cantab Motors, Ltd.

TITLE: NONE

ATTACHMT: NONE

TEXT: Dear Mr. Sharples

I enclose a copy of an order of the Administrator granting the petition by Cantab Motors for temporary exemption from Motor Vehicle Safety Standards Nos. 208 and 214. The exemption from Standard No. 208 will expire on September 1, 1997, and that for Sta ndard No. 214 on September 1, 1998.

In accordance with agency regulations on the subject, within 30 days after your receipt of this letter please provide the Director, Office of Vehicle Safety Compliance, with a copy of the certification label reflecting the exemption that will be used on Cantab's vehicles (49 CFR 555.9(a)).

We have received your letter of August 17, 1995, which admits that Cantab manufactured and sold nine vehicles manufactured after the expiration of its previous exemption that did not conform with Standard No. 208, and which enclosed a petition for a dete rmination of inconsequentiality on this matter. This is currently under review.

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

Enclosure

ACTION: Issuance of Federal Register Notice Granting Cantab's Petition for Temporary Exemption From Standards Nos. 208 and 214 John Womack (K. WEINSTEIN) Acting Chief Counsel

Barry Felrice Associate Administrator for Safety Performance Standards

Attached for your signature is a Federal Register notice granting the petition by Cantab Motors for a temporary exemption from the automatic restraint requirements of Standard No. 208, and the side impact protection requirements of Standard No. 214. The basis of the grant is that compliance would cause substantial economic hardship to a manufacturer that has tried in good faith to meet the standards.

Cantab imports shells of Morgan sports cars from England, and installs propane engines and drive trains in the US; for this reason, we consider Cantab rather than Morgan as the manufacturer. In the year preceding the filing of its exemption petition it produced only 9 such cars. It has cumulative net losses approaching $ 93,000 for the last three fiscal years. It has been working with Morgan to develop vehicles that will be equipped with airbags meeting Standard No. 208, and provide side impact prote ction meeting Standard No. 214.

Because the components that must be modified for conformance are under the control of Morgan rather than Cantab, the company is dependent upon Morgan's efforts. Cantab asked for only a 2-year exemption from Standard No. 208, indicating that it is optimi stic that its cars will conform in less than the 3 years it could have asked for. However, it appears to require the full 3 years for Standard No. 214.

Any threat to safety that would be presented by an exempted vehicle would be minimal because they are few in number, and are represented as conforming to earlier versions of the two standards.

No comments were received on the application.

Attachment

DEPARTMENT OF TRANSPORTATION

National Highway Traffic Safety Administration

Docket No. 95-53; Notice 2

Cantab Motors, Ltd.

Grant of Application for Temporary Exemption From

Federal Motor Vehicle Safety Standards No. 208 and 214

Cantab Motors, Ltd., of Round Hill, Va., applied for a temporary exemption of two years from paragraph S4.1.4 of Federal Motor Vehicle Safety Standard No. 208 Occupant Crash Protection, and for three years from Federal Motor Vehicle Safety Standard No . 214 Side Impact Protection. The basis of the application was that compliance will cause substantial economic hardship to a manufacturer that has tried to comply with the standard in good faith.

Notice of receipt of the application was published on July 14, 1995, and an opportunity afforded for comment (60 FR 36328).

The make and type of passenger car for which exemption was requested is the Morgan open car or convertible. Morgan Motor Company ("Morgan"), the British manufacturer of the Morgan, has not offered its vehicle for sale in the United States since the e arly days of the Federal motor vehicle safety standards. In the nine years it has been in business, the applicant has bought 35 incomplete Morgan cars from the British manufacturer, and imported them as motor vehicle equipment, completing manufacture by the addition of engine and fuel system components. They differ from their British counterparts, not only in equipment items and modifications necessary for compliance with the Federal motor vehicle safety standards, but also in their fuel system compon ents and engines, which are propane fueled. As the party completing manufacture of the vehicle, Cantab certifies its conformance to all applicable Federal safety and bumper standards. The vehicle completed by Cantab in the U.S. is deemed sufficiently di fferent from the one produced in Britain that NHTSA considers Cantab the manufacturer, not a converter, even though the brand names are the same.

Morgan itself produced 478 cars in 1994, while in the year preceding the filing of its petition in June 1995, the applicant produced 9 cars for sale in the United States. Since the granting of its original exemption in 1990, Cantab has invested $ 38, 244 in research and development related to compliance with Federal safety and emissions standards. The applicant has experienced a net loss in each of its last three fiscal (calendar) years, with a cumulative net loss for this period of $ 92,594.

Application for Exemption from Standard No. 208

Cantab received NHTSA Exemption No. 90-3 from S4.1.2.1 and S4.1.2.2 of Standard No. 208, which expired May 1, 1993 (55 FR 21141). When this exemption was granted in 1990, the applicant had concluded that the most feasible way for it to conform to the automatic restraint requirements of Standard No. 208 was by means of an automatically deploying belt. In the period following the granting of the exemption, Morgan and the applicant created a mock-up of the Morgan passenger compartment with seat belt h ardware and motor drive assemblies. In time, it was determined that the belt track was likely to deform, making it inoperable. The program was abandoned, and Morgan and Cantab embarked upon research leading to a dual airbag system.

According to the applicant, Morgan tried without success to obtain a suitable airbag system from Mazda, Jaguar, Rolls-Royce and Lotus. As a result, Morgan is now developing its own system for its cars, and "[as] many as twelve different sensors, of b oth the impact and deceleration (sic) type, have been tested and the system currently utilizes a steering wheel from a Jaguar and the Land Rover Discovery steering column." Redesign of the passenger compartment is underway, involving knee bolstering, a s upplementary seat belt system, antisubmarining devices, and the seats themselves. Morgan informed the applicant on May 2, 1995, that it had thus far completed 10 tests on the mechanical components involved "and are now carrying out a detailed assessment of air bag operating systems and columns before we will be in a position to undertake the full set of appropriate tests to approve the installation in our vehicles."

Application for Exemption from Standard No. 214

Concurrently, Morgan and the applicant have been working towards meeting the dynamic test and performance requirements for side impact protection, for which Standard No. 214 has established a phase-in schedule. Although Morgan fits its car with a dua l roll bar system specified by Cantab, and Cantab installs door bars and strengthens the door latch receptacle and striker plate, the system does not yet conform to the new requirements of Standard No. 214, and the applicant has asked for an exemption of three years. It does, however, meet the previous side door strength requirements of the standard. Were the phase-in requirement of S8 applied to it, calculated on the basis of its limited production, only very few cars would be required to meet the st andard.

Safety and Public Interest Arguments

Because of the small number of vehicles that the applicant produces and its belief that they are used for pleasure rather than daily for business commuting or on long trips, and because of the three-point restraints and side impact protection currentl y offered, the applicant argued that an exemption would be in the public interest and consistent with safety. It brought to the agency's attention two recent oblique front impact accidents at estimated speeds of 30 mph and 65 mph respectively in which t he restrained occupants "emerged unscathed."

Further, the availability "of this unique vehicle . . . will help maintain the existing diversity of motor vehicles available to the U.S. consumer." Finally, "the distribution of [this] propane-fueled vehicle has contributed to the national interest b y promoting the development of motor systems by using alternate fuels."

No comments were received on the application.

In adding only engine and fuel system components to incomplete vehicles, the applicant is not a manufacturer of motor vehicles in the conventional sense. It does not produce the front end structural components, instrument panel, or steering wheel, ar eas of the motor vehicle whose design is critical for compliance with the airbag requirements of Standard No. 208. These are manufactured by Morgan, and the applicant is necessarily dependent upon Morgan to devise designs that will enable conformance wi th Standard No. 208. The applicant has been monitoring Morgan's progress, and that company is engaging in testing and design activities necessary for eventual conformance. The fact that the applicant is requesting only a two-year exemption, rather than three, indicates its belief that complying operator and passenger airbags will at last be fitted to its cars by the end of this period.

Similarly, the applicant is dependent upon the structural design of its vehicle for compliance with Standard No. 214. As with Standard No. 208, Morgan and the applicant are working towards conformance, though apparently it will not be achieved within two years. In both instances, however, the applicant is conscious of the need to conform and has been taking steps to accomplish it. Although the company's total expenditure of $ 38,244 in the last five years to meet emission and safety requirements is low, the small number of cars produced for sale in the United States in the last year, nine, would not make available substantial funds to the company, and its cumulative net losses of $ 92,594 indicate an operation whose financial existence is precario us.

Applicant's cars are equipped with manual three-point restraint systems and comply with previous side impact intrusion requirements. Because applicant produces only one line of vehicles, it cannot take advantage of the phase-in requirement. Given th e existing level of safety of the vehicles and the comparatively small exposure of the small number of them that would be produced under an exemption, there would appear to be an insignificant risk to traffic safety by providing an exemption. The public interest is served by maintaining the existence of small businesses and by creating awareness of alternative power sources.

In consideration of the foregoing, it is hereby found that to require immediate compliance with Standards Nos. 208 and 214 would cause substantial economic hardship to a manufacturer that has in good faith attempted to meet the standards, and that an exemption would be in the public interest and consistent with the objectives of traffic safety.

Accordingly, the applicant is hereby granted NHTSA Exemption No. 95-2, from paragraph S4.1.4 of 49 CFR 571.208 Motor Vehicle Safety Standard No. 208 Occupant Crash Protection, expiring September 1, 1997, and from 49 CFR 571.214 Motor Vehicle Safety St andard No. 214 Side Impact Protection, expiring September 1, 1998.

(49 U.S.C. 30113; delegation of authority at 49 CFR 1.50)

Issued on SEP 7 1995

Ricardo Martinez, M.D. Administrator

BILLING CODE: 4910-59-P

ID: nht95-4.37

Open

TYPE: INTERPRETATION-NHTSA

DATE: September 26, 1995

FROM: Carol Stroebel -- Director of Intergovernmental Affairs, NHTSA

TO: The Honorable Bart Stupak -- U.S. House of Representatives

TITLE: NONE

ATTACHMT: ATTACHED TO 8/21/95 LETTER FROM BART STUPAK TO BRENDA BROWN

TEXT: Dear Mr. Stupak:

Thank you for your letter enclosing correspondence from your constituent, Mr. Kurt B. Ries, concerning our requirements for school vehicles. Your letter was referred to the National Highway Traffic Safety Administration (NHTSA) for reply, since NHTSA re gulates the manufacture of all vehicles, including vans and school buses.

Mr. Ries, Director of the Northeast Michigan Consortium, asks for relief from what he believes is a new Federal regulation. The Northeast Michigan Consortium uses a number of 15-passenger vans to transport students to employment training programs and jo bs. Mr. Ries believes the new Federal regulation will require all vehicles transporting students, including vans, to be replaced with "mini-school buses," which he believes is economically unfeasible.

I appreciate this opportunity to address your constituent's concerns. As explained below, the new regulation that Mr. Ries is concerned about is not a Federal regulation, but one that Michigan is considering adopting as State law.

NHTSA has issued safety standards applicable to new motor vehicles, including school buses. Under our regulations, a "school bus" is a vehicle carrying 11 or more persons, that is sold to transport children to school or school-related events. Congress has directed NHTSA to require school bus manufacturers to meet safety standards on aspects of school bus safety, including floor strength, seating systems, and crashworthiness. Each seller of a new school bus must ensure that the vehicle is certified as meeting these safety standards.

While NHTSA regulates the manufacture and sale of new school buses, this agency does not regulate the use of vehicles. Thus, we do not have a present or pending requirement that would require Mr. Ries to cease using his vans for school transportation.

The requirements for the use of school buses and other vehicles are matters for each State to decide. We understand from Mr. Roger Lynas, the State Pupil Transportation Director in Michigan, that Michigan is considering changing its school bus definitio n to make it more similar to NHTSA's. Such an amendment could affect what vehicles can be used for school transportation under State law. For more information about Michigan's proposed amendment, we suggest Mr. Ries contact Mr. Lynas at (517) 373-4013.

NHTSA does not require States to permit only the use of "school buses" when buses are used for school transportation. However, we support State decisions to do so. NHTSA provides recommendations for the States on various operational aspects of school b us and pupil transportation safety programs, in the form of Highway Safety Program Guideline No. 17, "Pupil Transportation Safety," copy enclosed. Since school buses have special safety features that conventional buses do not have, such as padded, high- backed seats, protected fuel tanks, and warning lights and stop arms, they are the safest means to transport school children. Guideline 17 recommends that all buses regularly used for student transportation meet our school bus safety standards.

I hope this information is helpful. If you have any further questions, please do not hesitate to contact me.

ID: nht95-4.38

Open

TYPE: INTERPRETATION-NHTSA

DATE: September 29, 1995

FROM: John Womack -- Acting Chief Counsel, NHTSA

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

TITLE: NONE

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

TEXT: Dear Mr. Smith:

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

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

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

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

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

ID: nht95-4.39

Open

TYPE: INTERPRETATION-NHTSA

DATE: September 29, 1995

FROM: Guy Dorleans -- International Regulatory Affairs Manager, Valeo

TO: Chief Counsel, NHTSA

TITLE: NONE

ATTACHMT: Attached to 11/09/95 letter from Samuel J. Dubbin to Guy Dorleans (Std. 108)

TEXT: Dear Sir:

The use of light-emitting diodes brings technical solutions to almost all the styling trends, and allows to obtain an even patch luminance on the whole extension of the light-emitting surfaces. The sketches hereunder examplify a new area of freedom for rear end lighting:

Functions: Tail, Stop, rear turn signal

[ILLUSTRATION OMITTED -- SEE ORIGINAL SOURCE]

All the LEDs are red in color. The internal wiring is such that failure of one LED does not switch off a complete array of diodes: if we suppose that the system incorporates a total 32 diodes. The diodes will still be in operation if a single diode fai ls. In cases C, C', D and D' [ILLEGIBLE WORD], Standard 108 revised as of October 1, 1994 shall consequently apply in its relevant figure 1b for one lighted section.

Case A: During daytime, when neither the service brake nor the turn signal is operated, all the LEDs are off and no lighting function is used.

Case B: At night, the tail lamp is on, but neither the service brake nor the turn signal is operated. The whole light-emitting surface is slightly glooming, enough to fulfill the optical specifications of Standard 108 for tail lamps. All the diodes are energized at low-level intensity.

Case C: When braking at night, the current in the diodes is increased, so that the sum of the photometrics of the stoplamp and the tail lamp is fulfilled. The whole light-emitting surface is glooming. All the diodes are energized at full intensity. At point HV, the light output is at least fivefold bigger than in case B.

Case C': When braking during the day, the current in the diodes is increased, so that the photometrics of the stoplamp is fulfilled. The shole light-emitting surface is glooming. All the diodes are energized at full intensity. At point HV, the light o utput is at lease fivefold bigger than in case B.

Case D: When changing direction at night, the whole light-emitting surface is glooming. All the diodes are energized at full intensity during the on-period of the turn signal. The sum of the photometrics of the rear turn signal lamp and the tail lamp i s then fulfilled and at point HV, the light output is at least fivefold bigger than in case B. During of off-period of the turn signal, the diodes receive the same intensity as in case B, which corresponds to tail lamp only.

Case D': When changing direction during the day, the diodes are energized at full intensity during the one-period of the turn signal and then the whole light-emitting surface is glooming. The photometrics of the rear turn signal lamp is then fulfilled. During the off-period of the turn signal, the diodes are not energized.

We hereby ask confirmation that this new lighting combination is correct.

Best Regards.

ID: nht95-4.4

Open

TYPE: INTERPRETATION-NHTSA

DATE: August 30, 1995

FROM: John Womack -- Acting Chief Counsel, NHTSA

TO: Steven B. Fisher, Esq. -- Kostow & Daar, P. C.

TITLE: Re: Motor Vehicle Safety Standard No. 108

ATTACHMT: ATTACHED TO 7/31/95 LETTER FROM STEVEN B. FISHER TO PHILLIP R. RECHT (OCC 11096)

TEXT: Dear Mr. Fisher:

This responds to your letter of July 31, 1995, to Philip R. Recht, formerly Chief Counsel of this agency. You have asked several questions relating to use of the word "practicable" in the lamp location requirements of Federal Motor Vehicle Safety Standa rd No. 108.

Your first question is "with respect to truck, trailer identification lights (red), what is meant exactly by 'practicable' as used in SS5.3.1.1 and 5.3.1.4." Your second question is whose responsibility it is to make the determination of practicability. Your final question is whether there is any way for a manufacturer of "a single rear identification light" to know where a trailer manufacturer will install the product on any given trailer.

We don't see the word "practicable" in S5.3.1.1. However, S5.3.1.4 does provide that rear clearance lamps need not meet the requirement of Table II that they "be located as close as practicable to the top of the vehicle" when the rear identification lam ps are located at the extreme height of the vehicle. Table II specifies location of lighting equipment on the vehicle, and it is therefore the responsibility of the vehicle manufacturer, in certifying that its vehicle complies with all applicable Federa l motor vehicle safety standards, to determine what is practicable. As you indicate, a trailer manufacturer may make such a determination "in light of the particular design/configuration of the trailer involved." NHTSA will not contest this determinatio n unless it is clearly erroneous. In short, "practicable" as meant by S5.3.1.4 or any other place where the word occurs, is not a term defined by Standard No. 108, and derives its meaning from specific factual contexts. We note that the Random House Di ctionary of the English Language (1967) defines "practicable" as "capable of being done, effected, or put into practice with the available means" (p. 1127).

There is no responsibility under Standard No. 108 for the manufacturer of identification lamps to know where its products will be installed on the motor vehicle. Its responsibility under Standard No. 108 is to ensure that any identification lamp that it manufactures for replacement purposes is designed to conform to Standard No. 108's performance specifications and so certified at the time the lamp is shipped from the factory.

If you have any further questions you may phone Taylor Vinson of this office (202-366-5263).

ID: nht95-4.40

Open

TYPE: INTERPRETATION-NHTSA

DATE: September 29, 1995

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

TO: John Womack -- Acting Chief Council, NHTSA

TITLE: NONE

ATTACHMT: 12/8/95 letter from Samuel J. Dubbin to Edward J. Googins (A43; Std. 222)

TEXT: The question has been raised as to whether our DARE bus needs to have seat belts installed. This bus was given to us by the school department for use by the DARE officer to transport DARE students to activities. These activities occur for the most part outside of the regular school day.

The bus is a 1982, International - Model #S1700 with a GVWR of 20,200. It has stated seated capacity of 35 but due to the size of the students involved, it is difficult to get that many seated. The bus, in accordance to state law, had the flashing r ed and yellow lights removed.

I would appreciate a response from you as to whether this bus in its present use requires the installation of seat belts.

Thank you for your time.

Abuse Resistance Education Drug = DARE

5th & 6th grades

Bus was manufactured as a school bus.

ID: nht95-4.41

Open

TYPE: INTERPRETATION-NHTSA

DATE: October 1, 1995

FROM: Patrick Holmes

TO: To Whom it May Concern

TITLE: NONE

ATTACHMT: 12/8/95 letter from Samuel J. Dubbin to Patrick Holmes (Std. 218; A43)

TEXT: To whom it may concern.

Due to the high cost of buying a helmet from any shops. I have decided to manufacture a helmet for my own use. What I would like to know is if I follow all specifications that the Dept. of Transportation says I must in order to certify the helmet as D.O.T. approved may I than certify my homemade helmet?

I would appreciate an answer to this question at your earliest convenience. Thank you.

ID: nht95-4.42

Open

TYPE: INTERPRETATION-NHTSA

DATE: October 1, 1995 EST

FROM: Adam Englund -- Electric Bicycle Company, LLC

TO: John Womack -- Acting Chief Counsel, NHTSA

TITLE: Request for Interpretation

ATTACHMT: 1/19/96 letter from Samuel J. Dubbin to Adam Englund (A44; Std. 108; Std. 116; Std. 119; Std. 120; Std. 122)

TEXT: The Electric Bicycle Company, LLC, 3601 Empire Avenue, Burbank CA, 91505 (hereinafter, "EBC") is a limited liability company organized under the laws of the State of Nevada. EBC hereby requests an interpretation with respect to certain Federal Motor Veh icle Safety Standards for the EV Warrior, an electric/human-powered bicycle to be manufactured by EBC.

Confidentiality

Certain portions of this document contain confidential information and trade secrets related to our product and marketing strategy. We have carefully calculated our market position. Based on that market analysis, we spent a great deal of time, money and effort to develop the EV Warrior. As we are about to launch our initial production run, we are aware that other electric bicycles are also entering the market. Our insistence on compliance with FMVSS sets us apart from our competitors. As such, t he very existence, and certainly the content of this Request for Interpretation is confidential and constitutes trade secrets.

We seek an interpretation of certain Federal Motor Vehicle Safety Standards with respect to the electric bicycle that we are about to manufacture.

CONFIDENTIAL

[The EV Warrior is essentially a multi-speed bicycle with attached electric motors that drive the rear wheel through a friction drive wheel against the rear tire. The transmissions of each power source - human and electric - are entirely separate. W hereas the bicycle employs six speed derailleur shifting, the electric motor powers the rear wheel through a single drive wheel on a roller clutch against the tire. The EV Warrior employs many standard bicycle components, including wheels, tires, cantil ever or optional hydraulic disc bicycle brakes, "Grip Shift" gear shifters, cranks and pedals

The power pack is integrated into the chassis of the cycle and is not intended to be removed, especially by the consumer. However, were the electric assist motor to be removed, the device would still function fully as a bicycle. (Without the assist m otor, the EV Warrior's equipment would be regulated under 16 CFR 512 by the Consumer Products Safety Commission - as a bicycle.)

Using the electric motor alone, the EV Warrior is capable of traveling approximately 15 miles at 12 m.p.h. Its maximum speed is under 25 m.p.h. Even with pedaling, it is difficult to push the bike beyond 25 m.p.h. Its total weight is approximately 85 lbs. Separate service brake systems operate the front and rear brakes, respectively.]

A. License Plate Attachment

CONFIDENTIAL

[We would like you to confirm our understanding that marine grade hook-and-loop material is an acceptable method of attaching the license plates. In my conversation with Luke Loy, NHTSA Safety Compliance Engineer, he advised me that since the FMVSS ar e silent on this issue, such attachment is acceptable.]

B. Adjustability of Headlight Beam, Standard No. 108 Table III, "Headlamps"

This Standard specifies the applicable SAE Recommended Practice for "Headlamp Mountings", SAE J566, Jan. 60. It recommends that:

"Headlamps and headlamp mountings shall be so designed and constructed that:

1. The axis of the light beams may be adjusted to the left, right, up, or down from the designed setting, the amount of adjustability to be determined by practical operating conditions and the type of equipment."

CONFIDENTIAL

One primary rationale for beam adjustability is to compensate for changes in a vehicles suspension system. However, the EV Warrior has no springs or shocks. Rather, it uses a fixed frame and fork. In our experience, bicycle headlamps are continually knocked out of alignment. So, we have designed the headlamp to be secured such that the aim will not be disturbed under ordinary conditions of service [per SAE J566, Jan. 60, par.]

We request an interpretation that the practical operating conditions for a motor driven cycle, whose top speed is under 25 mph and whose operation will correlate to a normal bicycle, dictate that its headlamp (which meets all other headlamp requiremen ts) need not be adjustable.

C. Hydraulic system biodegradable synthetic oil. Standard No. 116, "Motor vehicle brake fluids".

CONFIDENTIAL

[Our basic model EV Warrior employs mechanically activated wire cable "cantilever" brakes, front and rear. However, we currently offer a "standard option" hydraulic front disc brake. This brake, made by Sachs of Germany, is far superior to virtually any cantilever brake. It offers excellent braking power; simplicity in set-up, maintenance and operation; reliability; and fine modulation.

The Sachs hydraulic brake uses a green colored biodegradable synthetic oil, Shell Naturelle HF-E 15, that is not in contact with any elastomeric components made of styrene and butadiene rubber (SBR), ethylene and propylene rubber (EPR), polychloropren e (CR) brake hose inner tube stock or natural rubber (NR)."] Standard No. 116, S4. states that:

"Brake fluid means a liquid designed for use in a motor vehicle hydraulic brake system in which it will contact elastomeric components made of styrene and butadiene rubber (SBR), ethylene and propylene rubber (EPR), polychloroprene (CR) brake hose inn er tube stock or natural rubber (NR).",

and,

"Hydraulic system mineral oil means a mineral-oil-based fluid designed for use in motor vehicle hydraulic brake systems in which the fluid is not in contact with components made of SBR, EPR or NR."

The synthetic oil employed by the Sachs system is neither a "Brake fluid" because it is not in contact with any components made of SBR, EPR, CR or NR, nor is it an "Hydraulic system mineral oil" as it is not petroleum based.

"S5. Requirements This section specifies performance requirements for DOT 3, DOT 4 and DOT 5 brake fluids; requirements for brake fluid certification; and requirements for container sealing, labeling and color coding for brake fluids and hydraulic sys tem mineral oils . . ."

CONFIDENTIAL

[The standard sets out the requirements for "brake fluid" and other requirements for "hydraulic system mineral oil. However, there are no requirements under S5. for fluids that do not fall within either of these definitions. EBC seeks an interpretat ion that, by omission, there are no requirements under FMVSS 116 for the hydraulic system biodegradable synthetic oil as used in the Sachs hydraulic brake system.]

D. Hydraulic Service Brake System Standard No. 122, "Motorcycle brake systems", S5.1.2

CONFIDENTIAL

[The Sachs brake differs from traditional hydraulic systems in that it is a closed system that employs a simple actuator instead of a master cylinder with a reservoir. In open systems, to compensate for brake pad wear, the master cylinder system requ ires a reservoir. However, the Sachs brake compensates for brake pad wear through a simple screw adjustment in the brake lever. This is an excellent system that is commensurate with the weight and simplicity of our electric bicycle. It is, in fact, mu ch easier to adjust than any cable type bicycle brake.]

Standard No. 122, S5.1.2 Hydraulic service brake systems, requires that:

"Each motorcycle equipped with a hydraulic brake system shall have the equipment specified in S5.1.2.1 and S5.1.2.2."

S5.1.2.1 States that:

"Each master cylinder shall have a separate reservoir for each brake circuit, with each reservoir filler opening having its own cover, seal and cover retention device . . ." (emphasis added) CONFIDENTIAL

[Since the Sachs hydraulic system employs no master cylinders, a simple calculation bears out the premise that when there is no master cylinder, the number of master cylinder reservoirs required is zero.

Alternatively, this standard seems to assume that an hydraulic brake system requires a master cylinder reservoir for its proper operation and does not contemplate an actuator system. We request an alternate interpretation that this standard applies t o an open system that requires a reservoir, but not to a closed, actuator system as employed by the EV Warrior. The reservoir serves no purpose in a closed system.

If your interpretation agrees with ours, that a reservoir is not required, then we hope you will also agree that, a fortiori, labeling requirements of S5.1.2.2, for a non-existent reservoir would also not be required.]

E. Tire requirements, Standard No. 119, "Pneumatic tires for vehicles other than passenger cars", S6. Requirements.

CONFIDENTIAL

[The EV Warrior's electric motor will propel the vehicle at no more than 25 m.p.h. (40 k.p.h.). Consequently, the maximum speed of the EV Warrior is about the same as a regular bicycle - and considerably slower than racing cyclists. Even when the mot or is operating at near peak efficiency (and hence reduced speed), the batteries will last no more than 15 miles (24 kilometers) or 1.5 hours. Unlike an internal combustion engine whose fuel tank can be filled in seconds, the EV Warrior generally takes over-night, or at best, a couple of hours to re-charge. Thus there is necessarily a period between each 1-1/2 hour trip when the tires will cool down. It is literally impossible for the EV Warrior to obtain the speeds, or travel anywhere near the non-s top distances contemplated by Standard No. 119]

Standard No. 119, S7.2 Endurance test procedures, require the test for motorcycle tires to be performed at a speed of 55 m.p.h. (90 k.p.h.) for 47 hours.

Standard No. 119, S7.4 High speed performance test procedures, requires testing at speeds of 50 m.p.h. (80 k.p.h.) for two hours, 75 m.p.h. (121 k.p.h.) for 30 minutes, 80 m.p.h. (129 k.p.h.) for 30 minutes and 85 m.p.h. (137 k.p.h.) for 30 minutes.

CONFIDENTIAL

Clearly, these standards are inappropriate for a low-speed, short range electric bicycle such as the EV Warrior. It is not germane whether the EV Warrior's tire/rim combination remains undamaged at 55 mph, because the vehicle can never attain that sp eed. Similarly, the performance characteristics of the tires and rims after 47 hours is not apropos because the, vehicle cannot be operated continuously for that duration. Because it must be recharged after 1.5 hours for 30 minutes to 8 hours (thereby allowing the tires to cool), such a continuous-use endurance test is meaningless. As such, we request an interpretation that, Standard No. 119 cannot reasonably be applied to such a low speed, short range vehicle as the EV Warrior.

We at EBC have joined together to produce an entirely new form of transportation. Children are first introduced to transportation with bicycles. Electric bicycles will allow the smoothest and most natural transition from bikes to electric vehicles. As the first mass marketed electric vehicle, the EV Warrior vehicle will introduce an entire generation to electric vehicles and hasten the electric transportation revolution.

ID: nht95-4.43

Open

TYPE: INTERPRETATION-NHTSA

DATE: October 3, 1995

FROM: Bob Clement -- Member of Congress

TO: The Honorable Richardo Martinez, M.D. -- Administrator, NHTSA

TITLE: NONE

ATTACHMT: Attached to 11/14/95 Letter from Samuel J. Dubbin to Bob Clement (VSA 11316; A43; Std. 208; Std. 209; Std. 210)

TEXT: Dear Administrator Martinez:

I recently received the attached information from my constituent, Mr. Dale Allen Pommer, regarding the regulations governing a third seat belt in the back seat. According to Mr. Pommer, federal rules prohibit a third seat belt from being installed in his 1983 Chevrolet S-10 Blazer.

I would greatly appreciate your looking into this matter and providing me with a response so that I might properly reply to my constituent's inquiry.

If you require any additional information or have any questions, please do not hesitate to contact Jay Hansen of my staff at (202) 225-4311.

Thank you in advance for any assistance you may be able to provide. I look forward to hearing from you.

Attachment

Representative Bob Clement U.S. House of Representatives 2229 Rayburn House Office Building Washington, D.C. 205-20515-4205

Representative Clement:

I am writing to you regarding my automobile and safety regulations. We recently had a new baby and I want to put a third seat belt in the back of my 1983 Chevrolet S-10 Blazer. I keep getting told that no one will do it because of safety laws. This strikes me as absurd! What is more dangerous? A post-factory-installed seat belt or no seat belt at all? Or two kids in one seat belt? My wife's Hyundai Excel which is considerably smaller than my Blazer has three seat belts in the rear. So my tiny foreign-made car is safe for five, but my much larger, American-made Blazer is not. Is that the conclusion?

I would like to know what, if anything you know about the safety laws and whether or not there is anything that can be done in a case like mine. I sure as Hell can't afford a new truck and don't want to get rid of mine anyway. I would also like to b e able to put my whole family in it.

Thanks for your time, I look forward to hearing from you.

Sincerely,

Dale Allen Pommer Nashville, TN 615/262-9736

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.