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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 1811 - 1820 of 2066
Interpretations Date
 search results table

ID: nht87-3.3

Open

TYPE: INTERPRETATION-NHTSA

DATE: 09/25/87

FROM: AUTHOR UNAVAILABLE; Erika Z. Jones; NHTSA

TO: Ms. Sally P. Tate

TITLE: FMVSS INTERPRETATION

TEXT:

Ms. Sally P. Tate Adaptive Driving Service 2818 Ronco Drive San Jose, CA 95132

Dear Ms Tate:

This is in reply to your letter of August 13, 1987, with reference to the following problem: an owner of a 1987 Toyota Corolla has multiple sclerosis, and instead of walking must use a powered scooter. The scooter is transported by a lift platf orm mounted on a trailer hitch in the rear of the car. However, this lift unit "obstructs direct view of -- the factory installed high rear brake light." You propose to install another stop lamp on the post of the lift "so that it will be in dir ect view of the drivers behind....," leaving untouched the original center highmounted stop lamp. You have informed us that California will not sanction the additional lamp unless this agency authorizes it. Vehicles in use are subject to the prohibition in the National Traffic and Motor Vehicle Safety Act that equipment installed in accordance with a safety standard may not be rendered inoperative, in whole or in part, by a person other than the vehicle owner. Installation of any equipment that obstructs the light output of a highmounted stop lamp would render it partially inoperative in our opinion. Because photometric compliance of the lamp is determined from a distance of not less than 10 feet, and b ecause the distance between the Toyota rear lamp and lift unit would appear to be less than that distance, it is probable that one or more of the requisite photometric test points might be obscured by the device.

However, it appears that the prohibition against rendering inoperative may not be violated by the modification you propose. Federal Motor Vehicle Safety Standard No. 108 Lamps, Reflective Devices, and Associated Equipment allows an exception for modifica tions made during the manufacturing process or before sale. Under Paragraph S4.3.1.1, if motor vehicle equipment prevents a lamp from compliance with photometric requirements, an auxiliary lamp meeting the photometric requirements shall be provided. Wher e a standard provides alternative methods of compliance, alteration of a vehicle or item of equipment so that it meets a different alternative from the one which it originally met does not constitute rendering inoperative within the meaning of the prohib ition.

We believe that your situation is sufficiently similar so that your addition of an auxiliary lamp meeting the photometric requirements would not violate the prohibition. In this instance the fact that the new lamp would not be located directed on the rea r vertical centerline of the vehicle, but slightly to the left of it, would not be of great concern to us. In conclusion, we have no objection to the proposed installation of the lamp.

Sincerely,

Erika Z. Jones Chief Counsel

August 13, 1987

Erika Z. Jones, Chief Counsel F.M.V. #108, Room 5219 National Highway Traffic Safety Administration U.S. Department of Transportation 400 7th Street SouthWest Washington, D.C. 20590

Dear Ms. Erika Z. Jones,

As per my conversations with Mr. Kevin Cabey and Mr. Taylor Vinson, I have been advised to write directly to you to have you assist us with our request.

I will try to be as brief as possible. I work with Physically Disabled individuals and I have been contracted by the State of California to work with a client who has Multiple Sclerosis. She purchased a 1987 Toyota Corolla liftback which obviously has th e high center rear brake light feature. This light in itself poses no problem. However, our client uses a powered scooter since her ability to ambulate is minimized and this scooter can only be transported through the means of a special lift unit mounted on a trailer hitch in the rear of the car. (Please refer to the brochure of Tiger Lift enclosed.) When this lift unit is mounted on the car, it abstracts direct view of the factory installed high rear brake light. We have come up with a solution of moun ting another high rear brake light" on the post of the lift so that it will be in direct view of the drivers behind our client. Our State Chief of Automotive Inspection insists that this rear brake light be visible.

Our snag hinges on the fact that the California State Department of Automotive Inspection will not sanction any location of the high rear brake light (only factory installed), in our case on the post of the lift, unless we receive a letter of authorizati on directly from the National Highway Traffic Safety Administration.

We are therefore requesting and greatly appreciate your efforts in assisting us with this client's need. Our automotive chief has stated that this unit will not be installed unless we are able to receive a written letter of authorization addressing the a cceptance of the installation of another high rear brake light, which can be mounted on the post of this lift unit. The factory installed unit will remain untouched.

Thank you for your prompt attention in this unusual request.

ID: nht81-3.18

Open

DATE: 09/08/81

FROM: AUTHOR UNAVAILABLE; F. Berndt; NHTSA

TO: Motor Vehicle Manufacturers Association

TITLE: FMVSS INTERPRETATION

TEXT:

NOA-30

Mr. V. J. Adduci Motor Vehicle Manufacturers Association Suite 300 1909 K Street, N.W. Washington, D.C. 20006

Dear Mr. Adduci:

On June 5, representatives of MVMA met with representatives of this agency to discuss various issues concerning the application of Federal Motor Vehicle Safety Standard 115. At that meeting, the MVMA representatives requested clarification of the agency's policy on correction of errors made by vehicle manufacturers in their vehicle identification numbers (VIN's). This letter responds to that request.

The agency shares your concern about the potential difficulties associated with correcting erroneous VIN's and will attempt to minimize the burdens involved with any required corrective action. Nevertheless, the agency must consider the safety benefits of an accurate, national VIN system, as well as the anti-theft and other benefits of such a system.

This letter focuses on some of the most likely VIN errors and discusses whether those errors in vehicles sold to consumers would be inconsequential as the errors relate to safety, and, if not, what type of remedy would have to be provided to vehicle owners. Corrective action involving the replacing of an erroneous VIN plate or label or the restamping of the VIN on part of the vehicle is the most desirable remedy. However, there may be less burdensome remedies that would be effective and satisfy the National Traffic and Motor Vehicle Safety Act.

One type of error which could be easily corrected is an error in a single VIN character other than the check digit or a character monitored by VIN users. The agency would likely regard such an error as inconsequential if the vehicle manufacturer submitted the necessary corrected decoding information to the agency. The agency would place this information in a public file, thereby making it available to other VIN users. With this corrected decoding information available, the agency's safety research activities would not be impaired and manufacturers would still be able to conduct recall campaigns where necessary.

A second type of error involves an erroneous check digit or other character monitored by vehicle records systems of States or other VIN users. Erroneous check digits could adversely affect our ability to conduct research and to monitor recalls, since the error rate of VIN transcription would presumably be higher in the absence of a properly functioning check digit. Further, without some form of corrective action by the manufacturer (such as restamping or the use of a correction label), vehicle purchasers could face rejections by State, insurance, and other data-processing systems using the check digit to verify transcription accuracy. However, the agency is also concerned that the use of labels could create opportunities for auto theft operations to generate bogus VIN's. Therefore, the agency is presently inclined to treat erroneous check digits as inconsequential noncompliance if the manufacturer reports the errors to the agency. However, as discussed below, the agency is planning to invite public comment on this question before establishing a final position on the matter.

A third type of error involves the physical aspects of the VIN itself. For example, a manufacturer might use a type face other than the sans type face required by the standard. Although errors of this type would have to be resolved on a case-by-case basis, they would likely be deemed inconsequential because they would present no problems to the agency, other VIN users, or vehicle owners.

The most difficult type of errors would involve a major error in numbering which would impair the safety and other uses of the VIN. An extreme example of such an error would be a situation where a manufacturer numbered many of its vehicles identically, or where the VIN's were totally illegible. An error of that magnitude could impair the manufacturers' ability to conduct recall campaigns and the ability of the agency to monitor them. It would also cause serious problems for all VIN users. In this type of situation (which should arise rarely, if ever), some form of corrective action would be necessary. The use of a correction label which meets all requirements of FMVSS 115 including indelibility would be one possible approach.

One final matter discussed at the June 5 meeting relates to the correction of VIN errors on vehicles already produced but still in the possession of the manufacturer. We would treat these vehicles the same as the vehicles already sold, i.e., if the noncompliance were inconsequential for the vehicles already sold, it would also be inconsequential for the vehicles produced but still in the manufacturer's possession. However, the agency would expect that once the error is detected, similar vehicles produced thereafter would fully comply with the standard. There is precedent for this approach, since the agency has previously treated as inconsequential noncompliance erroneous identification numbers on tires still in the manufacturer's possession, where an inconsequentiality petition has been granted with respect to tires already sold.

The agency will issue in the near future a notice inviting comment on MVMA's petition to change Standard 115 to a general regulation. In this notice, we will seek comment on the types on corrective action discussed above. If you have any thoughts on other means of making these types of corrections, we would of course be pleased to receive your views.

Sincerely,

Frank Berndt Chief Counsel

ID: nht88-2.65

Open

TYPE: INTERPRETATION-NHTSA

DATE: 07/11/88

FROM: LOUIS F. KLUSMEYER -- SENIOR RESEARCH SCIENTIST, VEHICLE RESEARCH AND DEVELOPMENT, SOUTHWEST RESEARCH INSTITUTE

TO: TAYLOR VINSON--ATTORNEY ADVISOR NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION

TITLE: NONE

ATTACHMT: ATTACHED TO LETTER DATED 08/15/88 TO LOUIS F. KLUSMEYER FROM ERIKA Z. JONES; REDBOOK A32(3), STANDARD 108

TEXT: Dear Mr. Vinson:

Southwest Research Institute (SwRI) has been asked to help determine the desirability of adding a "deceleration" or "pre-braking" warning light to the light configuration which is normally used on automobiles. As presently envisioned, this light woul d be amber in color and would be illuminated when the driver removes pressure from the accelerator pedal sufficiently to cause the automobile speed to start to decrease, due to the effect of engine compression, and would be extinguished automatically whe never the driver reapplies pressure to the accelerator pedal.

SwRI considers that a "deceleration light" of this type has the potential to reduce the incidence of automobile rear-end collisions (see Attachment 1) and that this potential is maximized if the light is located in as conspicuou a location as possible . The "best" location is considered to be immediately adjacent (or as close as possible) to the location of the "high-mounted stoplamp" since this location appears to offer the highest degree of visibility and would also serve to attract attention to th e high-mounted stoplamp area.

This location appears to have already been considered by NHTSA for this purpose, since it is mentioned as a consideration in FMVSS No. 108 on page PRE 137, and the principle is in widespread use on schoolbuses which use a manually activated flashing a mber light to warn that the red stop lights are about to be turned on and that all traffic must stop.

A review of FMVSS No. 108 (Lamps, Reflective Devices, and Associated Equipment) has failed to locate any requirement which would preclude locating an additional light adjacent to the high-mounted stoplamp; however, this type of requirement was conside red at one time (FMVSS 108, pages PRE 132-133 and PRE 135) and SwRI would like to find out if any requirement exists now, or is contemplated for the future, which would prevent the use of this location.

If I can provide further information or answer any questions which might expedite the answer to this question, please call (512) 522-3017.

Sincerely,

DECELERATION LIGHT MAXIMUM BENEFIT SITUATIONS The following three categories of driving situations are considered to be the situations in which deceleration lights would be of maximum benefit in reducing rear-end collisions.

HEAVY TRAFFIC (High speed/high traffic density with decreased vehicle separation distances)

High traffic density, with the associated decrease in visibility and increased need for enhanced reaction time, leads to a situation where reaction times become additive and eventually reach the point where a following driver is placed in a situation where his vehicle has exceeded its physical capability of stopping in time to avoid an accident. Deceleration lights offer the potential for minimizing this progressive lengthening of reaction time and thereby permitting long strings of cars to stop saf ely. Deceleration lights would also provide valuable information about adjoining lane driver intentions, particularly in lane change situations where an apparent opening in an adjoining traffic lane may be about to vanish if the driver of the vehicle at the front of the opening has decided to slow down and has taken his foot off the accelerator preparatory to stepping on the brakes.

MERGING TRAFFIC (Converging situations between vehicles entering or leaving limited access roadways)

A particularly volatile and rapidly changing situation occurs when two streams of traffic merge and the driver of the vehicle with the right-of-way is often forced to guess whether or not a merging driver is going to yield, speed up, or slow down. Th is guess is made harder by the fact that most drivers control their merging maneuver by use of the accelerator pedal only, and thus leave only the rate-of-change of their speed as a clue to their intentions. The driver with the right-of-way is almost al ways driving the faster, overtaking, vehicle and would be able to see a deceleration light which could furnish valuable clues about the other driver's intentions. A deceleration light would also furnish valuable information to drivers following the vehi cle with the righ-of-way if that driver decides to "let up on the gas" and give a merging vehicle more room to complete the merging maneuver.

DECREASED TRACTION (Braking situations where low traction may cause skids or other loss of control situations if brakes are applied too heavily)

Many drivers fail to realize the need for increased spacing between car during slippery conditions (rain, snow, ice, etc.). At the same time most drivers are taught that the proper way to slow down in slippery conditions is to let up on the accelerat or and allow the vehicle to decelerate gradually. This combination is likely to cause accidents involving following cars which do not realize that they are following a car which is slowing down until it is too late for them to make a controlled stop. A deceleration light would provide this information for following drivers and allow them to initiate their own stop, or speed reduction, in time to remain in control.

ID: nht88-3.17

Open

TYPE: INTERPRETATION-NHTSA

DATE: 08/26/88 EST

FROM: ERIKA Z. JONES -- CHIEF COUNSEL, NHTSA

TO: WILLIAM K. BALDWIN,

ATTACHMT: MEMO DATED 5-7-88, "THE BALDWIN REAR-VIEW MIRROR SAFETY SYSTEM" PARTLY COVERED BY U.S. PAT #3,667,833

TEXT: This responds to your May 7, 1988 letter, concerning the "Baldwin Rear-View Mirror Safety System." You stated that this mirror system contains both a flat mirror of unit magnification and a convex mirror, and stated your belief that this mirror system "o ffers the latest in technology and safety." You requested that the National Highway Traffic Safety Administration (NHTSA) evaluate and approve your mirror system. We have no authority to approve any motor vehicles or motor vehicle equipment, as explaine d below.

The National Traffic and Motor Vehicle Safety Act of 1966, as amended (the "Safety Act") authorizes this agency to issue safety standards applicable to motor vehicles and items of motor vehicle equipment. The Safety Act also requires that these safety s tandards establish minimum levels of performance for vehicles or equipment. Once the necessary performance level has been established, vehicle or equipment manufacturers are free to choose any means they wish to achieve the required level of performance . In other words, the safety standards do not require the use of any particular manufacturer's product; the standards permit the use of any manufacturer's product that achieves the necessary performance level. Section 114 of the Safety Act (15 U.S.C. 1 403) requires manufacturers to certify that each of its vehicles or items of motor vehicle equipment complies with all applicable safety standards. Because of this provision in the law, NHTSA cannot approve, endorse, or certify any motor vehicle or item of motor vehicle equipment.

NHTSA has exercised its authority to establish performance requirements for new vehicles in Standard No. 111, Rearview Mirrors (49 CFR @ 571.111; copy enclosed). As you will see, Standard No. 111 establishes performance and location requirements for the rearview mirrors installed in any new vehicle. This means that vehicle manufacturers must certify

that each of their new vehicles complies with the applicable requirements of Standard No. 111. Standard No. 111 does not apply to rearview mirrors as items of equipment. The effect of this is to place the certification responsibility for original equip ment rearview mirror systems entirely on the vehicle manufacturer. You as the manufacturer of the mirror are not required to certify that your mirrors comply with Standard No. 111 or any other standard.

With respect to your new mirror system, NHTSA has said in many previous interpretations that vehicle manufacturers may install mirror systems that combine flat and convex mirrors on their new vehicles, provided that the flat mirror portion by itself comp lies with the requirements of Standard No. 111 that are applicable to the vehicle type on which the mirror system is installed.

Assuming that the flat mirror portion of your mirror system complies with the requirements of Standard No. 111 for the vehicle type on which it is to be installed, this new mirror system can legally be installed on new vehicles of that type.

Please note that the requirements of Standard No. 111 do not apply to mirrors installed as aftermarket equipment. The only limitation on such installations is set forth in section 108(a)(2)(A) of the Safety Act (15 U.S.C. 1397(a)(2)(A)). That section p rohibits any manufacturer, distributor, dealer, or motor vehicle repair business from knowingly rendering inoperative any device or element of design installed on or in a motor vehicle in compliance with an applicable safety standard. The rearview mirro r system in a vehicle is a device installed in compliance with Standard No. 111. If the installation of an aftermarket mirror system resulted in a vehicle no longer complying with Standard No. 111, a manufacturer, distributor, dealer, or repair business that removed a complying system and replaced it with the noncomplying system would have rendered inoperative a device (the mirror system) installed in the vehicle in compliance with Standard No. 111. Section 109 of the Safety Act (15 U.S.C. 1398) speci fies a civil penalty of up to $ 1,000 for each violation of the "render inoperative" provision.

Again assuming that the flat mirror portion of your mirror system complies with the requirements of Standard No. 111 for the vehicle type on which it is to be installed, this new mirror system can legally be installed on used vehicles of that type. If y our mirror system does not comply with the requirements of Standard No. 111 for a vehicle type, it cannot be installed on used vehicles of that type by any manufacturer, distributor, dealer, or repair business.

Please note that the Safety Act does not establish any limitations on an individual vehicle owner's ability to alter his or her own vehicle. Under Federal law, individual owners can install any mirror system they want to their own vehicles, regardless o f whether that mirror system renders inoperative the vehicle's compliance with the requirements of Standard No. 111.

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

ENCLOSURE

ID: 86-3.25

Open

TYPE: INTERPRETATION-NHTSA

DATE: 05/16/86

FROM: AUTHOR UNAVAILABLE; Erika Z. Jones; NHTSA

TO: Earl J. Ogletree; John Gaski -- Harley Products Inc.

TITLE: FMVSS INTERPRETATION

TEXT:

Mr. Earl J. Ogletree Mr. John Gaski Harley Products Inc. 904 S Prospect Avenue Park Ridge, IL 60068 Dear Mr. Ogletree and Mr. Gaski: Thank you for your letter of March 28, 1986, asking how our regulations would affect a product you intend to manufacture both as an aftermarket item of motor vehicle equipment and as an item of original equipment on some vehicles imported into this country. You described the product as a sun visor that clips onto a vehicle's regular visor. You further explained that the sun visor has an extension arm that allows the visor to be moved to filter out the sun coming in through the window to the left of the driver, or moved below the original equipment visor or between the two original equipment visors. I hope the following discussion explains how our regulations affect your proposed visor.

Some background information on how Federal motor vehicle safety laws and regulations affect your product may be helpful. Our agency is authorized, under the National Traffic and Motor Vehicle Safety Act, to issue safety standards applicable to new motor vehicles and certain items of motor vehicle equipment. NHTSA, however, does not approve motor vehicles or motor vehicle equipment, nor do we endorse any commercial products. Instead, the Vehicle Safety Act establishes a "self-certification" process under which each manufacturer is responsible for certifying that its products meet all applicable safety standards. The agency periodically tests vehicles and equipment items for compliance with the standards, and also investigates alleged safety-related defects. As explained below, installation of your proposed sun visor in new and used vehicles would be affected by our regulations. In addition, any manufacturer of motor vehicle equipment is subject to the requirements of the Vehicle Safety Act concerning the recall and remedy of products with noncompliances or defects related to motor vehicle safety.

We have issued Federal Motor Vehicle Safety Standard No. 205, Glazing Materials, which specifies performance and location requirements for glazing used in vehicles. These requirements include specifications for minimum levels of light transmittance (708 in areas requisite for driving visibility, which includes all windows in passenger cars).

No manufacturer or dealer is permitted to install solar films and other sun screen devices, such as the sun visors described in your letter, in new vehicles without certifying that the vehicle continues to be in compliance with the light transmittance and other requirements of the standard.

After a vehicle is first sold to a consumer, modifications to a vehicle are affected by section 108(a)(2)(A) of the Vehicle Safety Act. That section prohibits commercial businesses from tampering with safety equipment installed on a vehicle in compliance with our standards. Thus, no dealer, manufacturer, repair business or distributor can install a sun screen device for the owner of the vehicle, if the device would cause the window not to meet the requirements of Standard No 205. Violation of section 108(a)(2)(A) can result in Federal civil penalties of up to $1,000 for each violation.

Section 108(a)(2)(A) does not affect vehicle owners, who may themselves alter their vehicles as they please, so long as they adhere to all State requirements. Under Federal law, the owner may install sun screening devices regardless of whether the installation adversely affects the light transmittance. However, the agency encourages vehicle owners not to install devices which could impair their vision and thus adversely affect safety. Individual States govern the operational use of vehicles by their owners and therefore it is within the authority of the States to preclude owners from using sun screens in their vehicles.

If you need further information, please let me know.

Sincerely,

Erika Z. Jones Chief Counsel

LEGAL COUNSEL NHTSB U.S. DEPARTMENT OF TRANSPORTATION ROOM 5219 400 7TH STREET S.W. WASHINGTON, D.C. 20590

DEAR SIR/MS:

I AM REQUESTING A RULING OR INFORMATION ON THE U.S. GOVERNMENTS POSITION ON THE LEGALITY OF MANUFACTURING AND SELLING A NEW TYPE OF SUN VISOR* FOR USE ON AUTOMOBILES IN THE AFTER SALE MARKET IN THE U.S. ALSO WE ARE PLANNING TO INCORPORATE THE NEW SUN VISOR AS ORIGINAL EQUIPMENT ON AUTOMOBILES MANUFACTURED IN KOREA WHICH WILL BE SOLD IN THE U.S. SOLD.

* THE NEW SUN VISOR CLIPS ONTO THE AUTOMOBILES' REGULAR VISOR. WHAT MAKES THE NEW SUN VISOR DIFFERENT IS THAT THE TINTED SUN VISOR CAN BE MOVED TO FILTER OUT THE SUN VIA AN EXTENSION ARM THAT HOLDS THE TINTED SUN VISOR WITHOUT MOVING THE REGULAR OR ORIGINAL EQUIPMENT VISOR. WITH THE NEW SUN VISOR ONE CAN FILTER OUT THE SUN AT THE LEFT SIDE DOOR WINDOW, BELOW THE ORIGINAL EQUIPMENT VISOR AND BETWEEN THE TWO ORIGINAL EQUIPMENT VISORS.

PLEASE ADVISE US AS TO WHETHER OR NOT THIS IS A FEDERAL ISSUE OR PROBLEM.

SINCERELY, EARL J. OGLETREE AND JOHN GASKI

ID: Miller_tri-cycle 6102

Open

    Mr. Marshall V. Miller
    Miller & Company P.C.
    4929 Main Street
    Kansas City, MO 64112

    Dear Mr. Miller:

    This is in response to a letter you sent to Mr. John Lewis of this agency, in which you asked if a three-wheeled, electric work cycle ("work cycle") your client is seeking to import would be classified as a "motor vehicle." As explained below, based on the information you provided us, our answer is no.

    Title 49 U.S. Code 30112 prohibits the importation of any motor vehicle or motor vehicle equipment that is not certified to all applicable Federal motor vehicle safety standards. "Motor vehicle" is defined at 49 U.S.C. 30102(a)(6) as:

    [A] vehicle driven or drawn by mechanical power and manufactured primarily for use on the public streets, roads, and highways, but does not include a vehicle operated only on a rail line.

    In previous interpretations we did not consider vehicles designed and sold solely for non-public road use (e.g., airport runway vehicles and underground mining vehicles) as motor vehicles, even though they may be operationally capable of highway travel. [1]

    When a vehicle has on-road capabilities, the agency looks at five factors to determine if it a vehicle is a "motor vehicle." [2]These factors are:

    1. Whether the vehicle will be advertised for use on-road as well as off-road, or whether it will be advertised exclusively for off-road use;
    2. Whether the vehicles manufacturer or dealers will assist vehicle purchasers in obtaining certificates or origin or title documents to register the vehicle for on-road use;
    3. Whether the vehicle is or will be sold by dealers also selling vehicles that are classified as motor vehicles;
    4. Whether the vehicle has or will have affixed to it a warning label stating that the vehicle is intended for use on the public roads; and
    5. Whether States or Foreign countries have permitted or are likely to permit the vehicle to be registered for on-road use.

    Taken as a whole, we have concluded that the work cycle is not a motor vehicle. Our conclusion is based on the following analysis of the five factors provided above.

    As to the first factor, the vehicle will not be advertised for use on-road. Your clients business is primarily based on the manufacture and sale of work tractors used in industrialized settings. You stated that the work cycle would be solely advertised for use in similar off-road industrial settings.

    Second, the work cycles U.S. dealer will not be assisting purchasers in obtaining certificates or origin or title documents to register the vehicle for on-road use. You explained that your client would be the sole dealer of the work cycle and that the company would not provide any certificate of origin or title documents sufficient to register the work cycles in any State.

    Third, your client, the sole dealer of the work cycle, does not manufacture or sell any motor vehicles for on-road use.

    Fourth, you stated that your client would place a warning label on each work cycle, in a prominent place, stating that the work cycles are not intended for use on public roads.

    Fifth, while you did not state if the work cycle is permitted on public roads in China, you did state that to the best of your knowledge, no State has permitted the work cycle to be registered for on-road use. Further, you stated that because the work cycle does not have a VIN number, it is unlikely that any State would allow a work cycle to be registered for on-road use.

    While we have concluded at this time that the work cycle is not a motor vehicle, we may re-evaluate our determination if we were to receive additional information indicating that the work cycles were being used on public roads on more than an incidental basis.

    You may wish to consult the Occupational Safety and Health Administration (OSHA) to determine which, if any, OSHA regulations may apply to the work cycle.

    If you have any further questions, please contact Mr. Chris Calamita of my office at (202) 366-2992.

    Sincerely,

    Jacqueline Glassman
    Chief Counsel

    Enclosures
    ref:591
    d.10/7/03




    [1] See, Letter to Mr. Lane Francis, April 23, 2003 (A grain-vacuum manufactured primarily for use at agricultural sites is not a "motor vehicle."), and Letter to Mr. John L. Oberdorfer and Mr. Eric A. Kuwana, October 1, 1997 (a lift truck designed and manufactured to lift heavy loads on rough terrain and at industrial and construction locations is not a "motor vehicle.") [Enclosed]

    [2] See, Letter to Mr. M. James Lester, June 26, 2001.[Enclosed]

2003

ID: Heller2

Open

Mr. Peter E. Heller

Logo Brake Light

216 Redwood Road

Sag Harbor, NY 11963

Dear Mr. Heller:

This responds to your letter requesting clarification regarding how Federal Motor Vehicle Safety Standard (FMVSS) No. 108, Lamps, Reflective Devices, and Associated Equipment, applies to your patented product, the Logo Brake Light. Your letter described the Logo Brake Light as the merger of the center high mounted stop lamp with the automobile manufacturers logo, symbol or trademark. On a vehicle equipped with your product, when the service brake pedal is depressed, the lighted portion of the center high-mounted stop lamp (CHMSL) will illuminate in a shape representing the vehicle manufacturer or its brand. You enclosed three product samples (two in red and one in a combination of red and yellow). Based on the information you have provided to the agency and the analysis below, we have concluded that your product would not comply with Standard No. 108.

By way of background, the National Highway Traffic Safety Administration (NHTSA) is authorized to issue FMVSSs that set performance requirements for new motor vehicles and items of motor vehicle equipment (see 49 U.S.C. 30111 and 49 CFR Part 571). It is the responsibility of manufacturers to certify that their products conform to all applicable safety standards before they can be offered for sale (see 49 U.S.C. 30115 and 49 CFR Part 567). FMVSS No. 108 sets forth the requirements for both new and replacement motor vehicle lighting equipment.

Turning to the specific issues raised by your letter, FMVSS No. 108 specifies requirements for CHMSLs in light vehicles. First, paragraph S5.1.1.27(a) of FMVSS No. 108 specifies that each CHMSL shall: (1) have an effective projected luminous lens area of not less than 2903 square mm (4.5 square inches); (2) meet the visibility requirements such that a signal is visible from 45 degrees to the left to 45 degrees to the right of the longitudinal axis of the vehicle; and (3) have minimum photometric values in the amount and location listed in



Figure 10 of the standard. In addition, Table III, Required Motor Vehicle Lighting Equipment, specifies that the CHMSL must be red.[1] (A CHMSL produced using a combination of red and another color, such as yellow or silver, would not comply with the color requirement set forth in Table III.) Because we have not had the opportunity to examine your product in use, we cannot offer an opinion as to whether your product would meet the applicable area, visibility, and photometric requirements of Standard No. 108. However, we note that your product appears to violate the color restrictions set forth in Table III.

Furthermore, in discussing your request with the agency in phone conversations, you directed us to your website, www.logobrakelight.com. Upon review of this site, we saw examples of your product mounted below the rear glass (one on a trunk lid and another on an SUV liftgate). We note that your product apparently would not comply with paragraph S5.3.1.8(a)(2), which requires that no portion of the lens [CHMSL] shall be lower than 6 inches below the rear window on convertibles, or 3 inches on other passenger cars. Thus, the applications of your Logo Brake Light CHMSL currently shown would likely violate this location requirement.

Finally, we should also observe that a lighting standard is premised upon consistency of the message intended to warn or alert other drivers or pedestrians. We are concerned that the presence of both regular red and multicolor stop lamps with logos on them could result in confusion of other drivers or pedestrians.

Please note that we are returning your product samples to you under separate cover. If you have further questions, please feel free to contact Eric Stas of my staff at this address or by telephone at (202) 366-2992.

Sincerely,

Anthony M. Cooke

Chief Counsel

ref:108

d.2/7/07

 




[1] We note that there is a separate provision under S5.1.1.27(b) of Standard No. 108 that allows two CHMSLs (with specifications different from those above) on light vehicles other than passenger cars which have a vertical centerline that, when the vehicle is viewed from the rear, is not located on a fixed body panel but separates one or two movable body sections, such as doors, which lacks sufficient space to install a single CHMSL. Our analysis, however, would not differ for either version of the CHMSL.

2007

ID: nht94-2.57

Open

TYPE: Interpretation-NHTSA

DATE: April 25, 1994

FROM: John Womack -- Acting Chief Counsel, NHTSA

TO: Christopher S. Spencer -- Engineering

TITLE: None

ATTACHMT: Attached to letter dated 9/8/93 from Christopher S. Spencer to R. C. Carter (OCC-9128)

TEXT:

This responds to your letter about the brake reservoir requirements of Federal Motor Vehicle Safety Standard No. 121, Air Brake Systems (49 CFR S571.121). I apologize for the delay in our response. You stated that you are developing a new reservoir des ign to improve reservoir volume without increasing the need for space. You asked how to test your reservoirs since you believe that "(t)he safety standard does not clarify the test criteria specifically how the reservoir is to be sealed."

By way of background information, the National Highway Traffic Safety Administration does not provide approvals of motor vehicles or motor vehicle equipment. Under the National Traffic and Motor Vehicle Safety Act, it is the responsibility of the manufa cturer to ensure that its vehicles and equipment meet applicable requirements. The following represents our opinion based on the facts provided in your letter.

Standard No. 121 establishes performance and equipment requirements for braking systems on vehicles equipped with air brakes. The Standard's reservoir requirements for trucks and buses are set forth in section S5.1.2. That section requires these vehicle s to be equipped with one or more service reservoir systems that meet specified performance requirements. Section S5.1.2.2 specifies the following:

Each reservoir shall be capable of withstanding an internal hydrostatic pressure of five times the compressor cutout pressure or 500 psi, whichever is greater, for 10 minutes.

The purpose of this requirement is to ensure that an air brake system reservoir has a minimum level of structural integrity. NHTSA has long interpreted the term "withstand" to require that there be no rupture or permanent circumferential deformation of the reservoir exceeding one percent. At one point, the agency issued an interpretation concluding that the term "withstand" meant that a reservoir can deform only slightly and must contain the applied pressure with only a limited pressure drop at any ti me during the test. However, NHTSA later withdrew that interpretation because it inadvertently increased the severity of the requirement. See 42 FR 64630, December 27, 1977, and 43 FR 9149, March 6, 1978.

You asked about this requirement in connection with a reservoir design that includes a bushing on the inside of an endcap. A weld is placed around the bushing.

You describe two different procedures you have used to seal the reservoir. In what you describe as "Test Criteria 1," a socket head plug is put into

the bushing with 3 full wraps of tape. With this first method, you state that as the pressure is applied to the reservoir, the endcap starts to expand out. The bushing stretches with the endcap, and as the bushing stretches the threads are pulled away from the plug. The plug must therefore be retightened several times before the required pressure is reached. In your "Test Criteria 2," you state that a rubber grommet or washer is placed on the inside of the bushing and forced to expand to seal the bu shings from the inside. You stated that this method checks the weld but removes the threads from the test. With the second method, you state that there was no failure at over five times the working pressure.

While Standard No. 121 does not specify a particular test procedure for this requirement, the language of S5.1.2.2 makes it clear that a reservoir must "withstand" for 10 minutes a condition where the reservoir is pressurized at the specified level. The refore, in conducting a compliance test, NHTSA would pressurize a reservoir to the specified level. This would necessitate sealing the reservoir.

In considering how a particular reservoir would be sealed, it is important to bear in mind that the purpose of the test is to evaluate the reservoir's structural integrity and ability to withstand pressurization. I can offer you the following comments o n the two alternative test methods you described. The first method (Test Criteria 1) would appear to evaluate a reservoir's ability to withstand pressurization. The threaded plug would appear to reasonably approximate how the reservoir would be sealed i n an actual use situation. I note that the mere fact that the plug needs to be tightened during the test to achieve the specified level of pressure would not indicate a failure but would simply reflect minor air leakage around the plug.

The second method (Test Criteria 2) would not fully evaluate a reservoir's ability to withstand pressurization, since it would, as you recognized, remove the threads from the test, thereby creating an artificial seal. It is our opinion that a reservoir would not be capable of "withstanding" the specified hydrostatic internal pressure if the threads failed under such pressurization. This would represent a structural failure equivalent to a rupture.

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

ID: 86-4.34

Open

TYPE: INTERPRETATION-NHTSA

DATE: 08/04/86

FROM: AUTHOR UNAVAILABLE; Erika Z. Jones; NHTSA

TO: Brian Peck

TITLE: FMVSS INTERPRETATION

TEXT:

Mr. Brian Peck President Rearscope International (U.S.A.) Ltd. 15255 Hesperian Boulevard San Leandro, CA 94578

Dear Mr. Peck:

Thank you for your letter of May 19, 1986, asking how our regulations apply to your product, which is called the "Rearscope Wide Angle Lens." Your letter and the brochure you enclosed describes your product as a wide angle acrylic lens which mounts on the rear window of a bus and gives the driver a wider field of view to the rear of the vehicle. I hope the following discussion answers your questions.

By way of background, the National Highway Traffic Safety Administration has the authority to issue safety standards applicable to new motor vehicles and certain items of motor vehicle equipment. NHTSA, however, does not approve motor vehicles or motor vehicle equipment, nor do we endorse any commercial products. Instead the National Traffic and Motor Vehicle Safety Act establishes a "self-certification" process under which each manufacturer is responsible for certifying that its products meet our safety standards. The agency periodically tests vehicles and equipment items for compliance with the standards, and also investigates other alleged safety-related defects.

"We have issued Federal Motor Vehicle Safety Standard No. 205, Glazing Materials, which specifies performance and location requirements for glazing used in vehicles. These requirements include specifications for minimum levels of light transmittance (70% in areas requisite for driving visibility, which includes all windows in passenger cars) as well as other performance requirements for glazing.

Standard No. 205 does not directly apply to add-on window coverings, such as tinting films, sunscreening devices, and lens. However, no manufacturer or dealer is permitted to install a device on the glazing, such as the viewing lens described in your letter, in new vehicles without certifying that the vehicle continues to be in compliance with the light transmittance and other requirements of the standard.

After a vehicle is first sold to a consumer, modifications to a vehicle are affected by section 108(a)(2)(A) of the Vehicle Safety Act. That section prohibits commercial businesses from tampering with safety equipment installed on a vehicle in compliance with our standards. Thus, no dealer, manufacturer, repair business or distributor can install a device for the owner of the vehicle, if the device would cause the window not to meet the requirements of Standard No 205. Violation of section 108(a)(2)(A) can result in Federal civil penalties of up to $1,000 for each violation.

Section 108(a)(2)(A) does not affect vehicle owners, who may themselves alter their vehicles as they please, so long as they adhere to all State requirements. Under Federal law, the owner may install any type of device regardless of whether the installation adversely affects the performance of the window. Individual States govern the operational use of vehicles by their owners and therefore it is within the authority of the States to regulate the use of viewing devices in vehicles.

If you need further information, please let me know.

Sincerely,

Erika Z. Jones Chief Counsel

May 19, 1986

NHTSA Office of Chief Counsel 400 7th Street S.W. Washington, D.C. 20590

REAR SCOPE WIDE ANGLE LENS

Dear Sirs,

As per letter dated 4/25/86 (copy enclosed) I am writing to determine the status of our product the "REARSCOPE WIDE ANGLE LENS" as to the requirements oF current Federal Glazing standards, Our product which mounts on the rear window of Bus r Coach is made of Diakon by I.C.I. Ltd. of Great Britain, This acrylic product is similar. to DuPonts "Lexan" with which you are undoubtedly familiar.

If you feel a need to examine the product I would be more than willing to mail you a lens for testing purposes, In the meantime I am enclosing a brochure so that you might evaluate the situation, I await your reply.

Sincerely,

Brian Peck President

April 25, 1986

Mr. Brian Peck Rearscope International Limited 15255 Hesperian Boulevard San Leandro, California 94578

Dear Mr. Peck:

This is in answer to your letter of April 2, 1986: concerning the use of the Rearscope Wide Angle Lense in Pennsylvania.

After receiving your letter, I contacted the National Highway Transportation Safety Administration (NHTSA) to see if there were any applicable federal standards on glazing which had to be met. NHTSA indicated that they would review this request and suggested that you write to they for this information at the following address: NHTSA, Office of Chief Counsel, 400 7th Street S.W., Washington, D.C. 20590.

If you have already contacted NHTSA for approval, please forward their response to this Department. Pending receipt of this written notification from NHTSA, this Department will determine if your lens meets all Pennsylvania requirements.

Sincerely,

John A. Pachuta, Director Bureau or Motor Vehicles

ID: nht95-2.15

Open

TYPE: INTERPRETATION-NHTSA

DATE: March 30, 1995

FROM: Philip R. Recht -- Chief Counsel, NHTSA

TO: Brad Rourke -- Director, Government and Community Affairs, The Electric Bicycle Company

TITLE: NONE

ATTACHMT: ATTACHED TO 2/4/95 LETTER FROM BRAD ROURKE TO PHIL RECHT

TEXT: Dear Mr. Rourke:

Thank you for your letter of February 4, 1995. I am pleased to answer your questions about the applicability of the regulations of the National Highway Traffic Safety Administration (NHTSA) to your electric-assisted bicycle.

We have reviewed Adam Englund's memorandum of January 26, 1995, which you enclosed. In general, it is a complete and accurate statement of the applicability of our regulations to motor driven cycles. We have the following comments which I hope you will find helpful.

Certification label. The appropriate regulation is 49 CFR Part 567. The statutory authority that it implements, 15 U.S.C. 1403, was recodified last summer as 49 U.S.C. 30115 without any substantive change.

Vehicle Identification Number. "15 USC 565" should be 49 CFR Part 565.

Lighting. While the analysis is correct, we note that Tables III (required equipment) and IV (location of required equipment) give a reader an immediate ready reference to motorcycle lighting equipment.

Horn. This section can be included in the one following, on controls and displays. The reference to 49 CFR "571.125 Warning Devices" is incorrect. The warning device covered by that standard is a retroreflective triangle, not a horn.

We note also that if a motorcycle is equipped with a windshield, it must comply with Standard No. 205 Glazing Materials, and that motorcycles with hydraulic brake systems are required to be furnished with brake fluid meeting Standard No 116 Brake Fluids.

You also have asked three specific questions. The first relates to the requirement of Standard No. 123 Motorcycle Controls and Displays that the rear brake be operable by the left hand (or right foot) control and the front brake operable by the right ha nd control. This is the opposite of bicycle brake systems. You believe that most riders will expect the electric bicycle to brake like a conventional one and that accidents may occur as a result of confusion. For this reason, you would like to place th e rear brake control on the right handlebar, and the front brake control on the left.

The purpose of Standard No. 123 is "to minimize accidents caused by operator error . . . . by standardizing certain motorcycle controls and displays" so that a motorcycle operator can instinctively respond to threatening situations no matter what the mac hine. Your question raises the possibility that the purpose of the standard might be defeated with respect to the electric bicycle by strict application of Standard No. 123 when it is operated by those who are familiar with bicycle braking systems (thou gh this would not be the case if the operator is switching from a motorcycle to an electric bicycle). We do have authority to exempt manufacturers for up to two years from a requirement if it would promote the development or field evaluation of a low-em ission vehicle, or if compliance would prevent the manufacturer from selling a vehicle whose overall level of safety equals or exceeds that of a complying vehicle. The exemption procedures are contained in 49 CFR Part 555. Taylor Vinson of this Office will be glad to answer any questions you have (202-366-5263). You also may petition for rulemaking, as provided in 49 CFR Part 552, for an appropriate amendment to Standard No. 123. However, in the absence of an exemption or a change in Standard No. 12 3, the braking system of the electric bicycle must operate as provided in this standard.

Your second question relates to headlighting requirements for motor driven cycles. You believe that the headlamp specified by Standard No. 108 will reduce the ability of the electric bicycle to perform at night, and, for this reason, would like to use " a high-power bicycle-type headlamp." SAE J584, incorporated by reference in Standard No. 108, permits a motor driven cycle to be equipped with a single beam headlamp. If you wish to use a headlamp that does not comply with Standard No. 108's requirement s for motor driven cycle headlamps, you must petition for an exemption, and/or for rulemaking, as discussed in the prior paragraph. In addition to allowance of a single beam headlamp, paragraphs S5.1.1.21 and S5.1.1.22 of Standard No. 108 recognize the limitations of low-powered motorcycles and permit motor driven cycles whose top speed is 30 mph or less to omit turn signal lamps, and to be equipped with a smaller less powerful stop lamp.

Your final question relates to Standard No. 123 and your wish to use a spring-loaded thumb-lever throttle. This is permissible, and no requirements are prescribed for it by Standard No. 123. Your interpretation of Standard No. 123 is correct; a twist-g rip throttle is not required, but if it is provided, it must operate in the manner set forth in the standard.

If you have any further questions, you may call Taylor Vinson of this Office (202-366-5263).

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.