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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 14701 - 14710 of 16517
Interpretations Date

ID: nht95-2.93

Open

TYPE: INTERPRETATION-NHTSA

DATE: May 23, 1995

FROM: Lance Tunick -- Vehicle Services Consulting, Inc.

TO: Orron Kee -- NHTSA

TITLE: Re: Request for interpretation of 49 CFR 575.101

ATTACHMT: ATTACHED TO 7/26/95 LETTER FROM JOHN WOMACK TO LANCE TUNICK (REDBOOK 2; PART 575; STD. 105; STD. 135)

TEXT: Dear Orron:

This is to request that NHTSA clarify how it interprets the requirements of 49 CFR 575.101 (disclosure of vehicle stopping distance) when a manufacturer uses newly promulgated FMVSS 135 to certify its vehicle. The question arises because 575.101(c) refe rs to FMVSS 105, but makes no mention of FMVSS 135.

Thank you for your assistance.

ID: nht95-2.94

Open

TYPE: INTERPRETATION-NHTSA

DATE: May 24, 1995

FROM: John Womack -- Acting Chief Counsel, NHTSA

TO: Terry M. Habshey -- Oxytire Incorporated

TITLE: NONE

ATTACHMT: ATTACHED TO 3/6/95 LETTER FROM TERRY M. HABSHEY TO PHILIP RECHT (OCC 10785)

TEXT: Dear Mr. Habshey:

This responds to your March 6, 1995 letter to Philip Recht, our former Chief Counsel, and your telephone conversations with Walter Myers of my staff in which you requested a "new D.O.T. number." As discussed below, we are unable to provide you a tire man ufacturer's identification mark since the operations you perform on tires are not sufficient to make you the manufacturer of the tires.

You explained that your company is a global exporter of tires, particularly to third world countries, but that you intend to distribute tires domestically in the future. You stated that you obtain new tires from different manufacturers consisting of ori ginal equipment overruns, blems, etc., and that by a new process you intend to remove "most" of the information from the tire sidewalls. The new process includes removing a thin layer of rubber from the tire sidewall, then vulcanizing a layer of new rubb er onto the sidewall. The new layer will contain a new "registered" trade name, logo, and "identifying marks along with the size, safety information, mounting instructions, maximum and minimum inflating instructions, etc." You emphasized that all tires will be new and meet "all minimum standards established by the Department of Transportation."

Before addressing your request, let me first provide some background information. Chapter 301 of Title 49, U.S. Code (hereinafter Safety Act), authorizes the National Highway Traffic Safety Administration (NHTSA) to issue Federal motor vehicle safety st andards (FMVSS) applicable to new motor vehicles and new items of motor vehicle equipment sold in or imported into the United States. Tires are considered motor vehicle equipment. The Safety Act establishes a self-certification system in which manufact urers certify that their products comply with all applicable FMVSSs effective on the date of manufacture. In the case of tires, manufacturers reflect that certification by molding the letters "DOT" into or onto the sidewalls of all their tires manufactu red for sale in the United States.

The FMVSSs are not applicable to tires intended solely for export, labeled for export on the tires and on the outside of the container, and exported. See 49 U.S.C. @ 30112(b)(3); 49 Code of Federal Regulations (CFR) 571.7(d)). Accordingly, you are free to export any tires you want, whether or not they comply with the FMVSSs and after whatever modifications you make to them.

That is not the case, however, with tires distributed for sale in the United States. FMVSS No. 109, New pneumatic tires and FMVSS No. 110, Tire selection and rims, specify performance standards and labeling requirements for new passenger car tires and r ims. FMVSS No. 119, New pneumatic tires for vehicles other than passenger cars and FMVSS No. 120, Tire selection and rims for motor vehicles other than passenger cars, specify performance standards and labeling requirements applicable to tires and rims for vehicles other than passenger cars. 49 CFR Part 574, Tire identification and recordkeeping, requires new tire manufacturers to permanently mold into or onto one tire sidewall a tire identification number (TIN) and specifies methods by which new tire manufacturers and new tire brand name owners shall maintain records of tire purchasers. 49 CFR Part 575.104, Uniform tire quality grading standards (UTQGS), requires new motor vehicle and new tire manufacturers and brand name owners to provide informat ion to consumers concerning the relative performance of passenger car tires in the areas of treadwear, traction, and temperature resistance. The UTQGS grades are also required to be molded into or onto the tire sidewall.

The labeling requirements specified in the regulations referred to above apply to the actual tire manufacturers and/or brand name owners, and the required information, including the DOT symbol and the TIN, must appear on all new tires before they can be sold to their first retail purchasers. A tire distributor or dealer cannot legally remove any of the required information from new tire sidewalls. The required information on new tires is intended for safety purposes, purchaser information, and to enab le this agency to identify the manufacturer in the event of a noncompliance or defect in a tire line or lot.

A "manufacturer" is defined in 49 U.S.C. @ 30102(a)(5) as one who manufactures or assembles motor vehicles or equipment or one who imports motor vehicles or equipment for resale. The operations you describe would not be sufficient to make you the manufa cturer of the tires in question. According to your letter, you would, for marketing reasons, remove a thin layer of the surface area of the sidewalls of the tires so that most of the existing information is removed. You would then apply a new thin laye r of rubber containing new information. Your operations would thus not be changing the basic tire as such but simply changing the labeling. A change in labeling would not change who manufactured the tire. Thus, since you would not be a manufacturer of tires, you may not obtain a manufacturer's identification mark in accordance with 49 CFR @ 574.6. Only tire manufacturers or retreaders may obtain that mark.

49 U.S.C. @ 30122(b) prohibits manufacturers, distributors, dealers, and/or motor vehicle repair businesses from knowingly making inoperative any part of a device or element of design installed on or in a motor vehicle or item of equipment in compliance with applicable FMVSSs unless that individual reasonably believes that the vehicle or equipment will not be used when the device or element is inoperative. Thus, removal of the labeling information required to be marked on tire sidewalls in accordance w ith the standards and regulations discussed above could be a violation of @ 30122(b), which could subject the violator to civil penalties of up to $ 1000 per violation, or up to $ 800,000 for a series of related violations.

In summary, the Safety Act does not apply to tires intended solely for export. Thus, those tires are not required to comply with any FMVSSs. However, all new or retreaded tires sold or imported into the United States for sale must comply with all applic able FMVSSs and regulations as discussed above. Distributors and dealers may not remove any of the labeling information required to be marked on new tires by the actual manufacturers and/or brand name owners of those tires. Removal of that information c ould make inoperative an element of design on those tires, which could constitute a violation of 49 U.S.C. @ 30122(b).

I hope this information is helpful to you. Should you need additional information or have further questions, please feel free to contact Mr. Myers at this address or at (202) 366-2992.

ID: nht95-2.95

Open

TYPE: INTERPRETATION-NHTSA

DATE: May 24, 1995

FROM: Denise Jones -- President/Co-owner, Nimi Manufacturing, Inc.

TO: Dee Fujita -- Office of the Chief Counsel, NHTSA

TITLE: NONE

ATTACHMT: ATTACHED TO 6/30/95 LETTER FROM JOHN WOMACK TO DENISE JONES (A43; STD. 213)

TEXT: Dear Ms. Fujita:

As we discussed on the phone, attached is a xerox copy of the brochure describing our product. This pillow is designed specifically for use with booster car seats to provide support and comfort while the child is sleeping.

Approximately one year ago, I spoke with you on the phone regarding Federal regulations governing the flame retardancy of the fabric used to manufacture our product. At that time, your response was that there are no codes to govern this accessory.

We are now taking this product to the marketplace. Specifically, our local Wal-Mart store has purchased our pillow, however, we need to provide them with your response to us in writing. Would you please direct your reply to NiMi Manufacturing, Inc. so that we may provide retailers such as Wal-Mart with a copy. Their only concern was regarding the regulations of flame retardancy.

I certainly appreciate the time you have taken to talk with me, and the cooperation you have shown. NiMi is a very, very small business. Needless to say, your help and expediency is greatly appreciated, especially now that a major retailer is carrying our product. Perhaps we won't be small too much longer!

Please call me at (615) 636-5337 when you receive this. I'll be glad to answer any further questions you may have. Thanks again.

Attachment Brochure omitted.

ID: nht95-2.96

Open

TYPE: INTERPRETATION-NHTSA

DATE: May 25, 1995

FROM: John Womack -- Acting Chief Counsel, NHTSA

TO: Stuart Sacks -- Tradepro, Inc.

TITLE: NONE

ATTACHMT: ATTACHED TO 1/25/95 LETTER FROM STUART SACKS TO PHILIP R. RECHT

TEXT: Dear Mr. Sacks:

This responds to your letter to Mr. Philip Recht, our former Chief Counsel, in which you stated that you are considering importing tires from the Hangzhou General Rubber Factory, which has been assigned NHTSA manufacturer identification number 7D. You s tated that the tires do not display the "molded D.O.T. code numbers," and that Federal motor vehicle safety standard (FMVSS) No. 119, New Pneumatic tires for motor vehicles other than passenger cars (49 CFR 571.119), "clearly does not require [DOT code n umbers] for non-passenger tires." Your reading of FMVSS No. 119 is not correct.

I assume from your letter that you are considering importing only non-passenger car tires. This letter, then, will address only the labeling requirements for non-passenger car tires under FMVSS No. 119 and 49 CFR 574. I further assume that by "DOT code numbers" you mean the tire identification number (TIN) required by 49 CFR 574.5.

49 U.S. Code @ 30112 provides that no person may sell in or import into the United States any new motor vehicle or new item of motor vehicle equipment that does not comply with all applicable FMVSSs. With respect to non-passenger car tires, which are it ems of motor vehicle equipment, section S6.5 of FMVSS No. 119 requires specific items of information to be marked on the tire sidewalls. Those markings must be no less than 0.078 inch high and must be "raised above or sunk below the tire surface" a speci fied distance. Among other things, the markings must include the TIN (S6.5(b)).

Paragraph S6.5(b) of FMVSS No. 119 requires the TIN to comply with part 574. Part 574.5 requires that the TIN be permanently molded into or onto tire sidewalls as specified in Figure 1 of Part 574, and specifies what information the TIN must contain. Th e TIN can be branded into or onto the sidewalls of retreaded tires after the fact, but not new tires. On new tires, the TIN must be molded into or onto the tire sidewalls by the original manufacturer.

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

ID: nht95-2.97

Open

TYPE: INTERPRETATION-NHTSA

DATE: May 25, 1995

FROM: Kenneth Zawlocki

TO: Chief Counsel

TITLE: Re: US DOT - NHTSA - FMVSS218

ATTACHMT: ATTACHED TO 8/29/95 LETTER FROM JOHN WOMACK TO KENNETH ZAWLOCKI (REDBOOK 2; STD. 218)

TEXT: It is my interpretation of FMVSS218 that the Helmet Penetration Test is for the outer shell of the helmet and the Impact Attenuation Test is for the inner proctectant. Of course the Retention Test is for the straps that hold the helmet on the head. I c annot find any specifications as to what kind or how much material is to be used in the manufacturing of said helmets. Also, there is no specific language to the effect the helmet may not be covered with materials such as wigs, caps, cloth, etc. Theref ore, would you please clarify the following points for me:

1. Is the Penetration Test (S7.2) for testing the penetration of the outer shell?

2. Is the Impact Attenuation Test (S7.14) for testing types of impact material to prevent head injuries?

3. Is the Retention Test (S7.3) for testing straps that retain the brim of the helmet onto the head?

4. Are there any specifications in FMVSS218 as to what type and how much material can be used in the manufacturing of helmets?

5. Are there any stipulations in FMVSS218 that you cannot decorate a helmet with any material (leather, cloth), wigs, flowers, decals, hats, etc.?

I look forward to your reply; thank you for your assistance in this matter.

ID: nht95-2.98

Open

TYPE: INTERPRETATION-NHTSA

DATE: May 30, 1995

FROM: John Womack -- Acting Chief Counsel, NHTSA

TO: Barbara Bailey -- Administrative Assistant, Camp Berachah Christian Retreat Center

TITLE: NONE

ATTACHMT: ATTACHED TO 3/8/95 LETTER FROM BARBARA BAILEY TO WALTER MYERS

TEXT: Dear Ms. Bailey:

This responds to your letter and telephone call to Walter Myers of this office asking two questions about new 15-passenger vans that Camp Berachah leased from a dealer. I apologize for the delay in this response.

You first asked whether we require the leased vans to comply with our Federal motor vehicle safety standards (FMVSS) for school buses. You also asked whether we require the vans to comply with those FMVSSs if Camp Berachah loaned or subleased them to a school. Subject to a few considerations, the answer to both questions is no.

Some background information on our school bus regulations would be helpful. Our regulations require any person selling or leasing a new vehicle to sell or lease a vehicle that meets all FMVSSs applicable to that vehicle. Accordingly, persons selling or leasing a new school bus must sell or lease a vehicle that meets the FMVSSs applicable to school buses. Under 49 U.S.C. @ 30101, et seq. (referred to as Safety Act), a school bus is any vehicle that carries 11 or more persons and which is likely to be significantly used to transport students to or from school or related events. Thus, persons selling or leasing a new vehicle that carries 11 or more persons and which is likely to be significantly used to carry students is selling or leasing a new schoo l bus. That means that the new vehicle must meet the school bus FMVSSs.

The FMVSSs apply only to new vehicles prior to sale to the first retail purchaser. The onus of complying with the school bus regulations is mainly on the seller or dealer to ensure that each new school bus it sells or leases has been certified to the sc hool bus FMVSSs. The purchaser, on the other hand, is not subject to such constraints. Under our school bus regulations, the purchaser is free to use any vehicle to transport school children. That is because this agency does not regulate the use of ve hicles once they have been sold at retail.

Turning to your questions, we answer no to your first question based on the following. It was unclear from your letter whether Camp Berachah is connected with a school. In directing NHTSA to issue its school bus regulations, Congress considered buses u sed to transport children to camps connected with schools to be subject to the school bus FMVSSs. However, you clarified the nature of Camp Berachah in your conversation with Mr. Myers. You said that Camp Berachah is independent from any school and is not in any way affiliated with a school. Based on that information, Camp Berachah does not appear to be a school.

Thus, our school bus regulations do not require the leasing of complying school buses for Camp Berachah purposes.

In your second question, you asked whether the new leased vans had to comply with the school bus FMVSSs if Camp Berachah lent, rented or subleased them to a school. The answer depends on whether the vans are significantly used for pupil transportation, and if so, whether the dealer knew or should have known of such use. New vans that are likely to be significantly used to transport school children would be school buses, and the dealer leasing the new van is required to lease certified school buses. U se of the vans on a one-time or occasional basis would not constitute significant use as a school bus. However, if Camp Berachah were to sublease the vans to a school for long-term use, we believe the use of those vans for school transportation would be significant within the meaning of the Safety Act. Accordingly, the leasing company could not lease a new van for this purpose.

You should also note that the states have the authority to regulate the use of vehicles by motorists. Thus, although NHTSA does not require the sale or use of complying school buses in the situations you described, Washington does have such authority. You may wish to contact the state director of pupil transportation to learn more about any state requirements applicable to vehicles used as school buses.

In closing, we would like to note that school buses are one of the safest forms of transportation in this country. We therefore strongly recommend that all 15-passenger vans that are used to transport school children be certified as meeting the school b us safety standards.

I hope this information is helpful. Should you have any further questions or need additional information, please feel free to contact Mr. Myers at this address or at (202) 366-2992.

ID: nht95-2.99

Open

TYPE: INTERPRETATION-NHTSA

DATE: May 31, 1995

FROM: John C. Golden -- Product Manager, Lighting and Electrical, Federal Mogul Corp.

TO: John Womack -- Acting Chief Counsel, U.S. DOT

TITLE: NONE

ATTACHMT: ATTACHED TO 10/16/95 LETTER FROM JOHN WOMACK TO JOHN C. GOLDEN (A43; VSA 108(a)(2)(A); STD. 125)

TEXT: Dear Mr. Womack,

We are seeking some clarification on F.M.V.S.S. 125 and how it relates to a letter you wrote Mr. John G. Klinge, Executive Vice President, Visibility Systems Company dated 12 August, 1994.

We market a wide variety of lighting and safety devices under the brand name Signal-State. Mr. Klinge provided us a copy of your written response to his inquiry before we chose to go ahead and market his product under our name.

Now, Mr. Klinge would like us to market a three-pack version of his battery operated safety strobe device (an equilateral triangle measuring 3 1/2" on each side) that is, in our opinion, specifically designed for use on DOT warning triangles. We think i t is a terrific idea. However, before we market this item we have one question:

The requirement for warning triangles is for 17" (minimum) leg length and 2" (minimum) leg width. The red reflector must be 1/2" (minimum) width. Does the mounting of one of these devices (as pictured, attached) take away minimum reflective area suc h that it would render the warning triangles illegal or ineffective?

Our greatest fear is the possibility of a motorist coming over a hill on a dark night . . . and over that hill is a broken down vehicle . . . with triangles properly deployed . . . but with a Lightman on top of each . . . with dead batteries.

If you think we should contact the Federal Highway Administration for clarification, please be kind enough to direct me to the proper person.

(Brochure Omitted.)

ID: nht95-3.1

Open

TYPE: INTERPRETATION-NHTSA

DATE: June 6, 1995

FROM: John Womack -- Acting Chief Counsel, NHTSA

TO: C. Rufus Pennington, III -- Margol & Pennington, P.A.

TITLE: NONE

ATTACHMT: ATTACHED TO 4/5/95 LETTER FROM C. RUFUS PENNINGTON, III TO MARY VERSAILLES

TEXT: Dear Mr. Pennington:

This responds to your letter concerning the rear seats of a 1979 Porsche 911 SC, which were not equipped with any type of seat belt. You asked two questions relating to whether these seats should have been equipped with seat belts. Your questions are a ddressed below.

1. Did the manufacturer's designation of "two front" passenger seats eliminate any obligation on the part of the manufacturer to provide seat belts in the rear seats under Federal Motor Vehicle Safety Standard 208?

As explained below, a manufacturer's designation that a vehicle has two front seats does not eliminate the obligation to provide seat belts at rear seats, if those positions are "designated seating positions."

By way of background information, The National Highway Traffic Safety Administration (NHTSA) is authorized to issue Federal motor vehicle safety standards applicable to the manufacture and sale of new motor vehicles and items of motor vehicle equipment. NHTSA has exercised this authority to establish Federal Motor Vehicle Safety Standard No. 208, Occupant Crash Protection (49 CFR 571.208), which specifies performance requirements for the protection of vehicle occupants in crashes. Standard No. 208 req uired passenger cars manufactured on or after September 1, 1973 and before September 1, 1986, to have either a Type 1 (lap) or Type 2 (lap/shoulder) seat belt assembly at each rear "designated seating position."

The term "designated seating position" is defined at 49 CFR 571.3. For vehicles manufactured before September 1, 1980, the term "designated seating position" was defined as:

any plan view location intended by the manufacturer to provide seating accommodation while the vehicle is in motion, for a person at least as large as a fifth percentile adult female, except auxiliary seating accommodations such as temporary or folding j ump seats. n1

n1 The definition was amended effective September 1, 1980. Copies of the September 28, 1978 notice of proposed rulemaking and April 19, 1979 final rule are enclosed.

In a May 22, 1978, notification to vehicle manufacturers, the agency stated that manufacturers are responsible for determining the number of seating positions that are in the vehicle. The agency also stated:

This does not mean, however, that the manufacturer's designation will be accepted by the agency if there are additional, obvious seating positions that are likely to be used by occupants while the vehicle is in motion. The agency unquestionably intends to require protection for all vehicle occupants. n2

Thus, a manufacturer's specification that a vehicle has two front seats did not eliminate Standard No. 208's requirement for a seat belt assembly at each rear seat, if those locations met the above definition.

2. Did the Porsche 911 SC comply with, or did it violate, the requirements of Federal Motor Vehicle Safety Standard 208?

NHTSA cannot make a determination as to whether a vehicle complied with applicable safety standards outside a compliance proceeding. However, I can advise you of the factors the agency would look at to determine if the rear locations are designated seat ing positions. If those locations are designated seating positions, they should have been equipped with a seat belt assembly when originally manufactured.

n2 43 FR 21893. A copy of this notice is enclosed.

The May 22, 1978, notice provides a good summary of the agency's position. n3 That notice states:

the agency will consider any position . . . capable of accommodating a person at least as large as a fifth percentile adult female to be a "designated seating position", if the overall seat configuration and design is such that the manufacturer knows the position is likely to be used as a seating position while the vehicle is in motion.

I note that the hip breadth of a sitting fifth percentile female is approximately 13 inches, and the sitting height is approximately 31 inches. These are the measurements NHTSA would consider in determining whether a position is capable of accommodating a fifth percentile female.

n3 While that notice was focused on front seats, the rationale would apply to any seat.

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

ID: nht95-3.10

Open

TYPE: INTERPRETATION-NHTSA

DATE: June 12, 1995

FROM: John Womack -- Acting Chief Counsel, NHTSA

TO: Andrew Grubb -- Steve's Moped & Bicycle World

TITLE: NONE

ATTACHMT: ATTACHED TO UNDATED LETTER FROM ANDREW GRUBB TO NHTSA

TEXT: Dear Mr. Grubb:

This responds to your letter asking whether this agency's requirements apply to several products you are selling. One is called the "California Go-Ped," a small push scooter with non-pneumatic tires, a 2-cycle motor mounted above the rear wheel, and a t op speed of 20 mph. Another is called the "Tsi Power Scooter," and resembles a scooter in frame style, but has larger pneumatic tires and can be outfitted with a seat. The Power Scooter has a top speed of 15 mph. You cited a previous interpretation sta ting that a scooter (similar to the Go-Ped) is not a motor vehicle, and thus not subject to our requirements, so I assume that you are asking whether the products you sell are motor vehicles. You also asked about motorized "skateboards" and motors for mo unting on a conventional bicycle.

The short answer to your question is that the Go-Ped is not a motor vehicle but the Power Scooter may be, depending on whether it is sold with a seat. Motorized "skateboards" are not motor vehicles, but motors for mounting on bicycles are "motor vehicle equipment".

You indicated that you have a copy of a letter dated April 1, 1991, in which we discussed whether a small push scooter called a "Walk Machine" is considered a motor vehicle for purposes of our standards. In that letter, we discussed the general principl es for determining whether a product is a motor vehicle.

As discussed in that letter, vehicles that are equipped with tracks or are otherwise incapable of highway travel are plainly not motor vehicles. Further, vehicles designed and sold solely for off-road use (e.g., airport runway vehicles and underground m ining devices) are not considered motor vehicles, even though they may be operationally capable of highway travel.

On the other hand, vehicles that are or can be operated off-road, but are also used on the public highways on a necessary and recurring basis are motor vehicles. For instance, utility vehicles like the Jeep are plainly motor vehicles, even though they a re equipped with special features to permit off-road operation. If a vehicle will spend a substantial amount of time on-road, even though its greatest use will be off-road, NHTSA has found the vehicle to be a "motor vehicle." Further, if a vehicle is re adily usable on the public roads and is in fact used on the public roads by a substantial number of owners, NHTSA has found the vehicle to be a motor vehicle. This finding was made with respect to dune buggies and regardless of the manufacturer's stated intent regarding the terrain on which the vehicles were to be operated.

In discussing whether the Walk Machine is considered a motor vehicle, we noted that NHTSA has stated in previous interpretations that vehicles that regularly use the public roads will not be considered "motor vehicles" if such vehicles have a maximum att ainable speed of 20 miles per hour (mph) or less and an abnormal configuration which readily distinguishes them from other vehicles. We concluded that the Walk Machine is not a motor vehicle since it has a top speed of 16 mph and a configuration that re adily distinguishes it from motorcycles and other two-wheeled vehicles.

I will now apply these principles to the products you ask about in your letter. First, the California Go-Ped has an almost identical configuration to that of the Walk Machine and a maximum speed of 20 mph. Therefore, we do not consider it to be a motor vehicle, for the same reasons that apply to the Walk Machine.

Second, the Power Scooter has a maximum speed of 15 mph and, when sold without a seat, has a configuration similar to that of the Walk Machine. In that configuration, we do not consider it to be a motor vehicle.

When equipped with a seat, however, the Power Scooter is considered to be a motor vehicle. Although the advertising literature states that the Power Scooter is "not for in-street use," NHTSA believes that it is indistinguishable from a moped, which is a n on-street vehicle that we have long interpreted as a motor vehicle. Although most mopeds have chain drives, pedal starters, and lower-mounted engines, we do not think that these distinctions are important. The seated rider on the power scooter appears to other traffic to be riding a moped. We also note that the low ground clearance of the central platform appears poorly suited to off-road use.

Further, we consider the Power Scooter, when equipped with a seat, to be a type of motorcycle. A motorcycle is defined as "a motor vehicle with motive power having a seat or saddle for the use of the rider and designed to travel on not more than three w heels in contact with the ground" (Title 49, section 571.3 of the Code of Federal Regulations (CFR)). Motorcycles are subject to our regulations in 49 CFR Part 571, including Standards for lights (No. 108), rear view mirrors (111), brakes (122), and con trols and displays (123). The materials you sent do not disclose the horsepower of the 21 cc engine, but we assume that it is less than 5 brake horsepower. If that assumption is correct, the vehicle would be a "motor-driven cycle," a type of motorcycle that is subject to less stringent requirements under our regulations. However, the Power Scooter does not appear to meet even the less stringent requirements. For example, the Scooter lacks lights, dual braking systems, and rear view mirrors.

The motors for mounting on a conventional bicycle are designed specifically to convert the bicycle into a motorcycle. Therefore, they are motor vehicle equipment. Despite the notation "not for in-street use" in the advertising brochure, bicycles are pr edominantly used in the streets. Merely adding a motor does not change this fact.

The motorized "skateboard" is not a motor vehicle because it was not manufactured for in-street use and is also not used on the public roads.

You stated in your letter that you want to clarify the application of our motor vehicle requirements to your products so that you can advise your customers exactly where they can and cannot operate them. We strongly encourage you to read the enclosed in formation sheet on your responsibilities under Federal law as a retailer of motor vehicles and motor vehicle equipment. In addition, while the location of use of particular vehicles can affect our determination of whether a vehicle is a motor vehicle, t he actual regulation of the operation of vehicles and motor vehicles is a matter of State law. For information on State laws, you may contact the American Association of Motor Vehicle Administators at: 4200 Wilson Blvd., Suite 600, Arlington, VA 22203.

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

ID: nht95-3.100

Open

TYPE: INTERPRETATION-NHTSA

DATE: August 28, 1995

FROM: Joseph J. Smith -- Assistant Chief Maintenance Officer, Technical Services & Maintenance Support, Department of Buses, New York Transit Authority

TO: John Womack -- Office of Chief Counsel, NHTSA

TITLE: NONE

ATTACHMT: ATTACHED TO 9/29/95 LETTER FROM JOHN WOMACK TO JOSEPH J. SMITH (A43; STD. 302)

TEXT: Dear Mr. Womack:

I am requesting interpretation of NHTSA Standard No. 302; Flammability of interior materials (49 CFR Ch. V, 10-1-94 Edition, para. 571.302).

The Department of Buses, MTA New York City Transit, has been notified by a supplier of air conditioning (A/C) return air filters that their filters do not meet Standard No. 302.

The A/C filters that the DOB utilizes on RTS 04 and 06 model buses are located on the top of A/C evaporator coil. Although the A/C filters are not mentioned in para. S4.1 of the Standard No. 302, they may, in our opinion, be affected by requirements of para. S4.2, being separated from the bus interior only by a louvered panel. This area (which the filters occupy) cannot be clearly defined whether it falls into the category of occupant compartment air space.

The copies of some selected pages from the bus service and parts manuals are attached for your reference.

It would be greatly appreciated if you could clarify whether the A/C return air filters must conform to the Standard No. 302. If you need any additional information, please contact Sol. Zhodzishsky of my staff at tel. 718 927-7634 (fax 718 927-8079)

I would like also to thank Mr. Marvin Shaw for his expedient response to our verbal inquiries.

(MANUALS OMITTED.)

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.

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