Pasar al contenido principal

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 1061 - 1070 of 16505
Interpretations Date
 

ID: 1985-03.25

Open

TYPE: INTERPRETATION-NHTSA

DATE: 08/06/85

FROM: AUTHOR UNAVAILABLE; Mr. William Pesce; NHTSA

TO: Mr. William Pesce

TITLE: FMVSS INTERPRETATION

TEXT: Thank you for your May 18, 1985 letter inquiring about the existence of any Federal safety requirements applicable to your projected sale of colored windshield wiper blades.

Under the National Traffic and Motor Vehicle Safety Act, this agency has issued Federal Motor Vehicle Safety Standard No. 104, Windshield Wiping and Washing Systems, applicable to new motor vehicles. While this standard does not regulate wiper color, it does, among other things, require that a wiping system clear a minimum percentage of a vehicle's windshield.

In addition, Standard No. 107, Reflecting Surfaces, also applies to new motor vehicles. This standard specifies reflecting surface requirements for certain components, including windshield wiper blades, in the driver's field of view. Its purpose is to reduce the likelihood that unacceptable glare from reflecting surfaces will hinder safe and normal operation of the vehicle.

If a new vehicle equipped with your blade did not comply with Standard No. 104 or Standard No. 107 due to some aspect of that blade, the sale of that car to the public would be a violation of the prohibition in section 108(a)(1) (A) of the Act against the sale of noncomplying vehicles.

As to used vehicles, you should be aware that section 108(a)(2)(A) of the Act prohibits manufacturers, distributors, dealers and vehicle repair businesses from knowingly rendering inoperative equipment or elements of design installed on a vehicle under Federal motor vehicle safety standards. Care should be taken that the installation of your product would not have that effect. A rendering inoperative might occur if, for example, your blade were not large enough to enable the wiping system to clear a sufficient area of the windshield. We urge you therefore to ensure that the substitution of your blade for an original equipment blade provided by a vehicle manufacturer would enable the wiping system to continue to perform as required by Standard No. 104, and would not produce unacceptable glare in the driver's field of view, as required by Standard No. 107.

I hope this information is helpful.

ENCLS.

OCC-0747

Department of Transportation

May 18, 1985 We propose to offer for sale to the public a colored windshield wiper blade.

Our blade attaches to existing windshield wiper arms.

It does not alter in any way the speed or rythem of an operating wondshield wiper.

It is not made of floresent, or as they are called HOT colors nor is it reflective in any way.

We have been unable to find any safty restrictions which would apply to our product. If such restriction do, or do not exist we would appreciate receiving this information by return mail in the envelope provided.

William Pesce B P Origionals

ID: 1985-03.26

Open

TYPE: INTERPRETATION-NHTSA

DATE: 08/06/85

FROM: AUTHOR UNAVAILABLE; Jeffrey R. Miller; NHTSA

TO: Warren F.B. Lindsley, Esq.

TITLE: FMVSS INTERPRETATION

ATTACHMT: 8/22/85 letter from Jeffrey R. Miller to Leo Kagan

TEXT:

Warren F. B. Lindsley, Esq. Camel Square Suite 200E 4350 East Camelback Road Phoenix, Arizona 85018

This is in reply to your letter of July 3, 1985, to Mr. Vinson of my staff, with reference to the center high-mounted stop lamp, in which you have asked "whether a light which pulsates a few times and then assumes a steady state meets the requirements of the code."

As Mr. Vinson explained to you, a center high-mounted stop lamp installed as original equipment on a passenger car manufactured before September 1, 1986, must be steady-burning in use, but is permitted to flash automatically with the hazard warning system. As of September 1, 1986, original equipment lamps must only be activated upon application of the service brakes, and can only be steady-burning. A "light that pulsates a few times then assumes a steady state" would not fulfill this requirement.

The standard does not cover aftermarket equipment for vehicles not originally manufactured with the center high-mounted stop lamp. For this application, the law of each State where a retrofitted car would be operated would determine the legality of a pulsating/steady state lamp. The agency, of course, would prefer that aftermarket equipment conform as closely as possible to original vehicle equipment specifications. We believe that standardization of rear signals minimizes the possibility of creating confusion to following drivers in situations where immediate action is essential to avoid a rear end collision.

Sincerely,

Jeffrey R. Miller Chief Counsel

(See 8/22/85 letter from Jeffrey R. Miller to Leo Kagan)

July 3, 1985

ATTN: Attorney Taylor Vincent

Re: High Mounted Rear Brake Light Title 49 Revised October 1, 1984 Pages 243-244

Dear Mr. Vincent:

I appreciated talking with you recently about the above subject wherein you told me that the code required, after September 1, 1986, a steady state light in the rear of the car, not a flashing light.

My clients have asked me to inquire of you whether a light which pulsates a few times and then assumes a steady state meets the requirements of the code.

It is their position that initial short pulsating or flashing of the light followed by a steady state condition would alert the driver of a following vehicle quicker than a constant steady state condition.

Since an answer to this question is important to my clients, and has a bearing on their financial investment in the development of such a light, I would appreciate receiving your comments in the near future.

Very truly yours,

Warren F. B. Lindsley Patent Attorney

WFBL/mc

Mr. Leo Kagan Director of Marketing Automotive Division Amco Manufacturing Corporation 7425 Fulton Avenue North Hollywood, CA 91605

ID: 1985-03.27

Open

TYPE: INTERPRETATION-NHTSA

DATE: 08/09/85

FROM: JOHN LOVSTEDT -- HAWAII DOT MOTOR VEHICLE SAFETY OFFICE

TO: JERE MEDLIN -- OFFICE OF RULEMAKING NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION

TITLE: NONE

ATTACHMT: ATTACHED TO LETTER DATED 11/12/85 FROM ERIKA Z. JONES -- NHTSA TO LARRY HIROHATA, REDBOOK A28, STANDARD 108

TEXT: Dear Ms. Medlin:

We request a clarification to the final rule for modulating headlamps on motorcycles, which was published in the July 22, 1985, Federal Register.

The amendments to 49 CFR 571-108 shall permit the headlamps and side marker lamps to be wired to flash for signalling purposes. Does this mean that the headlamps on any motor vehicle can be wired to operate as a turn signal light in conjunction to general illumination of the area immediately ahead of the vehicle?

We question the requirement because the Society of Automotive Engineers (SAE) standard J580 defines a sealed beam headlamp assembly (J580, Section 2.1) as: "A major lighting assembly which includes one or more sealed beam units used to provide general illumination ahead of the vehicle". Also, SAE standards J588f, entitled, "Turn Signal Lamps" and J1221, entitled, "Headlamp - Turn Signal Spacing", both recommend that the spacing between the turn signal lamp and headlamp lower beam be at least four inches apart.

49 CFR, Section 393.22(b)(1), entitled, "Prohibited Combinations" (Federal Motor Carrier Safety Regulations, Bureau of Motor Carrier Safety) states in part: "A turn signal lamp must not be combined optically with either a headlamp or other lighting devices or combinatin of lighting devices that produces a greater intensity of light than the turn signal lamps."

Hence, we conclude that the headlamps of a motor vehicle should not be wired to incorporate the turn signal system or provide other functions when lamps are required to be illuminated during hours of darkness.

Your prompt response to this request is appreciated. Please send your response to:

Larry Hirohata

Vehicle Equipment Safety Specialist

Department of Transportation

Motor Vehicle Safety Office 79 South Nimitz Highway

Honolulu, Hawaii 96813

Thank you for your consideration.

Yours very truly,

ID: 1985-03.28

Open

TYPE: INTERPRETATION-NHTSA

DATE: 08/12/85

FROM: AUTHOR UNAVAILABLE; Jeffrey R. Miller; NHTSA

TO: Rod Nash, P.E. -- Corporate Engineering, Collins Industries, Inc.

TITLE: FMVSS INTERPRETATION

TEXT:

Mr. Rod Nash, P.E. Corporate Engineering Collins Industries, Inc. P.O. Box 58 Hutchinson, KS 67504-0058

This responds to your May 20, 1985 letter to Mr. Francis Armstrong of the Office of Vehicle Safety Compliance, National Highway Traffic Safety Administration (NHTSA). Your letter has been referred to my office for reply.

You asked whether you are correct in certifying a van as a multipurpose passenger vehicle (MPV) if the van carries less than 10 passengers but has the lighting and identifying marks of a school bus. The answer to your question is yes.

I would like you to keep in mind that NHTSA has two sets of regulations, issued under different acts of Congress, which have a bearing on your situation. The first of these is the regulations for the manufacture and sale of new motor vehicles and new motor vehicle equipment, issued by us under the authority of the National Traffic and Motor Vehicle Safety Act of 1966. The second set of regulations is the highway safety program standards issued by us under the Highway Safety Act of 1966. The highway safety program standards cover a wide range of subjects and are considered for Federal funding of state highway safety programs. The yellow paint and black markings of school buses are features of school bus safety covered by the program standard for pupil transportation safety.

We promulgated the following definition of a MPV, as found in 49 CFR S571.3, under the authority of the Vehicle Safety Act:

"Multipurpose passenger vehicle" means a motor vehicle with motive power, except a trailer, designed to carry 10 persons or less which is constructed either on a truck chassis or with special features for occasional off-road operation.

You are thus correct in certifying a van as a MPV if it carries less than 11 persons, including the driver. This is the case even if the MPV has the yellow paint and black trim of a school bus. You must certify your MPV as meeting all motor vehicle safety standards applicable to MPV's. You may also voluntarily manufacture the MPV in compliance with the requirements of our school bus safety standards, as long as the vehicle continues to comply with our standards for MPV's.

New vans carrying 11 or more persons (i.e., 10 or more passengers) are "buses" under NHTSA's definition of a "bus." We define "bus" as "a motor vehicle with motive power, except a trailer, designed for carrying more than 10 persons" (49 CFR 5571.3). Regardless of how they are painted or marked, new buses that are sold for purposes that include carrying school children must be certified as meeting our school bus safety standards.

You should also note that the color and other identifying features of a school bus are aspects of school bus safety covered by Highway Safety Program Standard (HSPS) No. 17, Pupil Transportation Safety. Individual states have chosen to adopt some or all of the highway safety program standards issued by NHTSA for their own highway safety programs. A state's implementation of HSPS No. 17 would affect the operation and identification of school vehicles to the extent of its implementation of the standard's recommendations. A copy of the standard is enclosed for your information.

Please contact me if you have further questions.

Sincerely,

Jeffrey R. Miller Chief Counsel

Enclosure

Mr. Francis Armstrong, Administrator National Highway Traffic & Safety Administration 400 7th St., S.W. Washington, D.C. 20590

Dear Mr. Armstrong:

I am writing to request a letter of interpretation on the National Highway Traffic & Safety Administration position regarding the appropriate vehicle classification for a yellow van with warning lights but set up to carry less than 10 passengers. In Public Law 89-563, a school bus is defined as:

A passenger motor vehicle which is designed to carry more than 10 passengers in addition to the driver, and which the Secretary determines is likely to be significantly used for the purpose of transporting primary, pre-primary, or secondary school students to or from such schools or events related to such schools.

Part 571 says a school bus means:

A bus that is sold, or introduced in interstate commerce, for purposes that include carrying student to and from school or related events, but does not include a bus designed and sold for operation as a common carrier in urban transportation.

Since a bus is defined as a vehicle to carry 10 passengers, I understand the two definitions to be talking about the same type vehicle.

From time to time, we receive orders for our small school bus equipped with a handicapped lift and floor planning for 5 to 10 passengers. We have been calling this type vehicle a multipurpose passenger vehicle on its certification sticker. The yearly production of vehicles with this type seating is small. Typically, our small school buses have seating capacities from 12 to 20 passengers and are clearly school buses.

We would appreciate your referring this letter to the office of Chief Counsel for the correct interpretation. Specifically, the question centers on a vehicle that is painted yellow, has black horizontal stripes, red and yellow warning lights on each end, and has designated seating positions for 6 to 10 passengers.

Thank you for your attention to these questions.

Sincerely, Rod Nash, P.E. Corporate Engineering COLLINS INDUSTRIES, INC. /mw

ID: 1985-03.29

Open

TYPE: INTERPRETATION-NHTSA

DATE: 08/13/85

FROM: AUTHOR UNAVAILABLE; Jeffrey R. Miller; NHTSA

TO: Mr. Robert D. Bagg

TITLE: FMVSS INTERPRETATION

TEXT: Thank you for your letter of July 5, 1985, to Stephen Oesch of my staff concerning Federal regulations that might affect a product you have developed. The information submitted with your letter describes the product as a collapsible partition that attaches to the rear of the front seat in a motor vehicle. The purpose of your product is to keep heat within the front portion of a car. The following discussion provides an explanation of how our standards would affect a device such as yours.

The National Traffic and Motor Vehicle Safety Act authorizes our agency to issue Federal Motor Vehicle Safety Standards that apply to new motor vehicles and items of motor vehicle equipment. We have issued several standards that apply or affect the use of your product. First, we have issued Standard No. 205, Glazing Materials, which applies to all glazing installed in a motor vehicle, including the glazing used in an interior partition. Standard No. 205 incorporates by reference Standard ANS Z-26, "Safety Code for Safety Glazing Materials for Glazing Motor Vehicles Operating on Land Highway," of the American National Standard Institute. A copy of Standard No. 205 and ANS Z-26 are enclosed for your reference.

Standard No. 205 specifies performance requirements for various types of glazing and also regulates the locations in vehicles in which each type of glazing may be used. The various types of glazing are designated as "Items" in the standard. Under the requirements of this standard, an interior partition to be used on a passenger vehicle at locations requisite for driving visibility, such as the device you have developed, may be manufactured out of either Item 1, Item 2, Item 4, Item 10, Item 11A, or Item 14 glazing materials.

Safety Standard No. 205 also sets forth specific certification and marking requirements for glazing materials. The marking requirements for prime glazing material manufacturers (i.e. those who fabricate, laminate, or temper the glazing material) are set out in paragraph S6.1 of the standard. In addition, section 6.3 of the standard requires each item of motor vehicle equipment to be certified pursuant to section 114 of the Vehicle Safety Act. Section 114 provides that an item of motor vehicle equipment may be certified by means of a label or tag on the item or on the outside of the container in which the equipment is delivered. The label or tag must state that the item of motor vehicle equipment complies with all applicable motor vehicle safety standards, which in this case would be Standard No. 205.

Under Section 108(a)(1)(A) of the Vehicle Safety Act, new motor vehicle equipment, such as interior partitions, must comply with applicable safety standards prior to sale. The manufacture, sale, or installation of a partition that does not conform to the standard, or the installation of a partition in a new vehicle in a location that is not authorized in Standard No. 205, would be in a violation of Section 108(a)(1)(A). Under Section 109(a), anyone who sells motor vehicle equipment which does not conform to all applicable safety standards is subject to a civil penalty of up to $1,000 for each violation.

Installation of your device could also be affected by Standard No. 201, Occupant Protection in Interior Impact. Section 3.2 of Standard No. 201, sets energy-absorption requirements for the back of the front seat to protect the heads of rear seat occupants thrown forward in a crash. A copy of Standard No. 201 is enclosed for your reference. Therefore, if your device were installed in a new vehicle prior to its first sale to a consumer, the manufacturer would have to certify that the vehicle, as equipped, complies with all standard including Standard No. 201.

Installation of your product in a used vehicle could be affected by section 108(a)(2)(A) of the Vehicle Safety Act. In 1974, Congress amended the Vehicle Safety Act to address the problem of persons tampering with safety equipment. That section provides, in part, that:

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

Thus, no manufacturer, distributor, dealer, or motor vehicle repair business may add your product to a motor vehicle, if that action would "render inoperative" the vehicle's compliance with Standard No. 201. The Vehicle Safety Act provides for civil penalties for persons that "render inoperative" an element of a safety standard.

Section 108(a)(2)(A) of the Act does not apply to individual vehicle owners. Thus, individual vehicle owners can, themselves, add your product to their vehicles without violating Federal law. However, installation of your product by individual owners would have to be done in accordance with applicable State law.

Manufacturers of motor vehicle equipment also have responsibilities under the Vehicle Safety Act regarding safety defects and noncompliances in their products. Under Sections 151 et seg., they must notify purchasers about safety-related defects and noncompliances and remedy the product free of charge. Again, Section 109(a) imposes a civil penalty upon any person who fails to provide notification of or remedy for a defect or noncompliance in motor vehicle equipment. A copy of the Vehicle Safety act and an information sheet outlining the responsibilities of vehicle and equipment manufacturers is enclosed.

We hope you find this information helpful. Please contact this office if you have any more questions.

ENCLS.

7/5/85

Dear Mr. Each,

In a mush as I didn't talk to you over phone, I'm sending this copy of Invention What I would like to know is, would this most the gov't requirement legally to use in vehicles. Before the manufacture and what. I would like advise.

RoBagg

OHEONTA, N.Y.

Dat# 3,002,784

OCC 0944

FIG.1.

FIG.2.

FIG.4.

FIG.3.

FIG.5.

(Graphics omitted)

INVENTOR.

Robert D. Bagg

By: L. S. Saulsbury.

ATTORNEY

Robert D. Bagg An Automobile Heat Saver Partition (One Sheet of Drawing)

This invention relates to an automobile heat saver partition.

It is the principal object of this invention to provide a collapsible partition for automobiles adapted to be located in the automobile and attached to the rear of the front seat so as to keep the heat of the automobile within the front seat space thereby eliminating the necessity of heating the rear seat space when vacant so that the driver will be supplied with adequate heat during cold weather with below zero temperatures.

It is another object of the invention to provide a partition for automobiles which has a transparent top piece so that the partition while located in the rear of the driver will not impair the visibility of the driver through the rear view mirror.

It is still another object of the invention to provide a heat saving partition for automobiles that is collapsible so that it can be stored easily in the trunk of the automobile when not in use or even left standing in a collapsed condition in rear of the front seat when not in use.

It is a further object of the invention to provide a heat saving partition for automobiles that can be attached to the rear of the front seat and supported therefrom by a simple strap.

It is a still further object of the invention to provide a heat saving partition for automobiles which will be made up in the form of a kit of few tube parts which can be readily assembled and fitted to one another and attached to the front seat of the automobile, and that is easy to disassemble and put into storage, the same consuming little space when disassembled.

Other objects of the invention are to provide a collapsible heat saver partition for automobiles, having the above objects in mind, which is of simple construction, inexpensive to manufacture, has a minimum number of parts, light in weight, easy to assemble, durable, of pleasing appearance, effective and efficient in use.

For other objects and a better understanding of the invention, reference may be had to the following detailed description taken in connection with the accompanying drawing, in which

Figure 1 is a side elevational view of a heat saver partition installed in an automobile upon the rear of the front seat thereof and constructed according to one form of the invention.

Fig. 2 is a perspective view of the partition and the seat to which it is attached by a strap,

Fig. 3 is an enlarged vertical sectional view of the partition as viewed on line 3-3 of Fig. 2 with illustration made as to the manner in which the partition may be collapsed,

Fig. 4 is a vertical perspective view of a heat saving partition formed of a plurality of tube parts according to another form of the invention, and

Fig. 5 is an exploded view of the partition shown in Fig. 4 and illustrating the manner in which they are assembled to one another.

Referring now particularly to Figs. 1 to 3, 10 generally represents the collapsible partition constructed according to one form of the invention comprising a bottom section 11 and a top frame 12 with a transparent window 13 therein and hingedly connected to the upper end of the lower section by hinges 14 and 15 so that the upper frame section 12 can be collapsed downwardly over the rear face of the lower section 11 at times when the rear seat space is to be heated as illustrated in Fig. 3 at 12' or when the partition is to be stored in the trunk space. Strap parts 16 and 17 are extended about the front seat to hold the partition against the rear face of the front seat. The window frame section 12 is held in its elevated position by a turn knob 18 secured to the lower section 11 on a pivot pin 19 near to the upper edge thereof and adapted when turned to overlie the lower edge to extend upwardly over the lower edge of the frame section 12 whereby the upper section will be held in its extended and raised position. The lower edge of the section 11 is cut away at 20 to accommodate the shaft hump in the floor of the automobile. The partition may be made of cardboard, plywood, plastic or metal.

Referring now particularly to Figs. 4 and 5, the partition is made up of aluminum tube parts. Pipe leg supports 22 and 23 have fitted to their upper ends thereof a transverse member 24 by its sockets 25 and 26 to the upper ends of which there is fitted legs 27 and 28 of a U-shaped member having a top portion 29. An elongated transparent plastic sleeve 30 shaped to conform to the U-shaped member is slid downwardly over the top portion 29 to provide a window partition through which the drivercan see. Plastic sleeve 30 is closed at the top and shaped to conform to the rounded ends of the top portion 29 of the U-shaped member. Separable straps 31 and 32 are respectively secured to the leg extensions 22 and 23 and can be fastened together by a buckle 33 about the front of the automobile seat in the manner illustrated in Fig. 4. In both forms of the invention the upper section or part of the partition is contoured to conform to the upper interior of the automobile.

It should now be apparent that there has been provided a heat saver partition for automobiles that can be collapsed or disassembled when not being used and which can be easily assembled, upon the rear of the front seat by simply connecting together straps about the front seat.

The legs and the transverse member constitute a lower section and the U-shape member with the transparent sleeve 30 constitute the upper section.

While various changes may be made in the detailed construction, it shall be understood that such changes shall be within the spirit and scope of the present invention as defined by the appended claims.

WHAT IS CLAIMED IS:

1. A heat saver partition for automobiles comprising a lower section, strap means for detachably securing the lower section to the rear of and about the front seat of the automobile, a transparent second section releasably connected to the lower section and adapted to be elevated or lowered therefrom to provide a closure for the upper portion of the automobiles interior, said upper section conforming generally thereto.

2. A heat saver partition for automobiles as defined in claim 1, said upper section being hingedly connected to the upper edge of the lower section and adapted to be collapsed downwardly thereover, and latch means for securing the upper section in its elevated position from the lower section.

3. A heat saver partition for automobiles as defined in claim 2, and said lower section being cut away to accommodate the shaft hump on the floor of the automobile.

4. A heat saver partition for automobiles as defined in claim 1, and said lower section formed of vertical pipes and a transverse member having sockets fitted to the upper ends of the pipes, and said upper section comprising a U-shaped member having legs adapted to be tight fitted into the sockets of the transverse member, and a transparent member conforming to the shape of the U-shaped member and slide fitted downwardly thereover.

ID: 1985-03.3

Open

TYPE: INTERPRETATION-NHTSA

DATE: 07/01/85 EST

TITLE: FEDERAL AUTO SAFETY LAWS AND MOTOR VEHICLE WINDOW TINTING

ATTACHMT: ATTACHED TO LETTER DATED 04/13/89 FROM ERIKA Z. JONES -- NHTSA TO MABEL Y. BULLOCK, REDBOOK A33, STANDARD 205, VSA 103 (D), VSA SECTION 108 (A)(2)(A); LETTER FROM MABEL Y. BULLOCK AND LACY H. THORNBURG TO SUSAN SCHRUTH -- NHTSA RE WINDOW TINTING, FEDERAL PRE-EMPTION OF STATE REGULATIONS, OCC 2142; NORTH CAROLINA STATUTE REGULATING WINDOW TINTING; LETTER DATED 12/18/87 FROM LACY H. THORNBURG AND MABEL Y. BULLOCK, SUBJECT MOTOR VEHICLES, REGULATIONS OF DARK SHADED WINDOWS; PREEMPTION; LETTER DATED 05/06/88 FROM DAIRL BRAGG TO WILLIAM S. HIATT; LETTER DATED 10/28/82 FROM FRANK BERNDT -- NHTSA TO LAWRENCE T. HIROHATA, N0A-30; LETTER DATED 04/04/85 FROM JEFFREY R. MILLER TO ARMOND CARDARELLI; 7/30/90 LETTER FROM P. J. RICE TO B. DITTEMORE (A35; STD. 205); 6/14/89 LETTER FROM B. DITTEMORE TO NHTSA (0CC 3633)

TEXT: The increasing popularity of window tinting in recent years has led to many questions on the effect of Federal auto safety laws on this practice. Is tinting allowed? If so, by whom and how much? And what about state tinting laws? The following discussion provides a brief explanation of the Federal laws in this area.

The National Traffic and Motor Vehicle Safety Act of 1966 authorized the National Highway Traffic Safety Administration (NHTSA) to issue Federal Motor Vehicle Safety Standards for new motor vehicles and items of motor vehicle equipment. Under that authority, NHTSA has issued a vehicle safety standards on a wide variety of subjects, including vehicle windows.

In 1967, the agency issued Safety Standard No. 205, Glazing Materials, which sets performance requirements for glazing materials in new motor vehicles and those sold as replacement equipment. In addition to establishing some new provisions, Standard No. 205 incorporates a widely recognized industry standard on the subject -- the "Safety Code for Safety Glazing Materials for Glazing Motor Vehicles Operating on Land Highways" of the American National Standards Institute (ANSI). Under the ANSI standard, window tinting is permitted, subject to specified performance requirements on light transmittance and abrasion resistance of the glazing.

Windows in New Vehicles

A manufacturer of new vehicles must certify that the glazing used in its vehicles conforms to the requirements of Standard No. 205. Any person who manufactures or sells a new vehicle which does not conform to any safety standard is subject to civil penalties and recall action under the Vehicle Safety Act. Thus, all windows required to driving visibility, whether clear or tinted, must meet all of the requirements of the standard, including those on light transmittance and abrasion resistance. The agency considers all windows in a passenger car, and the windshield and windows to the immediate right and left of the driver in trucks, buses and multipurpose passenger vehicles, to be requisite for driving visibility.

Likewise, if a dealer or other person places tinting film on glazing in a new vehicle prior to the sale of the vehicle, that person must certify that the glazing continues to meet the requirements of Standard No. 205. Thus, for example, the light transmittance through the combination of tinting film and the glazing must be at least 70 percent in the case of glazing used in windows requisite for driving visibility. Similarly, the combination must also meet the abrasion resistance and other requirements in the standard.

2

Windows in Used Vehicles

In 1974, Congress amended the Vehicle Safety Act to address the problem of persons tampering with safety equipment installed on a motor vehicle. The 1974 amendment (15 U.S.C. @ 1397 (a)(2)(A) provides, in part, that:

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

Thus, no manufacturer, distributor, dealer, or motor vehicle repair business may add tinting to windows in a motor vehicle, if that tinting would "render inoperative" the glazing's compliance with Standard No. 205. The Vehicle Safety Act provides for civil penalties (of up to $ 1000 per violation) for persons that "render inoperative" an element of a safety standard. If any of those commercial businesses added tinting material which reduced the light transmittance of the glazing in windows requisite for driving visibility to a level below 70 percent, the agency would consider that action's a "rendering inoperative" of the glazing's compliance with Standard No. 205. The statute does not prohibit tinting by commercial businesses, but it does limit the use of tinting.

The Vehicle Safety Act does not apply to individual vehicle owners. Thus, individual vehicle owners may, themselves, add any level of tint to the windows in their vehicles without violating Federal law. However, tinting done by individual owners would have to be done in accordance with applicable State law.

Effects on State Law

Federal law generally preempts any inconsistent state laws on the same subject covered by Federal Motor Vehicle Safety Standards. The Vehicle Safety Act (15 U.S.C. @ 1392(d)) provides:

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

Thus, States may not establish provisions regarding tinting or other vehicle window requirements which are either more or less stringent than those provided by Federal Motor Vehicle Safety Standard No. 205. For example, a State law which specifies a transmittance level less than 70 percent for windows requisite for driving visibility in new vehicles would be preempted. The adoption or retention of such a State law would have no effect on the Federal prohibition of such an installation. Further, any

3

State law or regulation permitting manufacturers, distributors, dealers, or motor vehicle repair businesses to install tinting materials on a vehicle after its first sale in violation of Standard No. 205 would also be preempted.

States may establish and enforce requirements identical to any Federal Motor Vehicle Safety Standard, including Standard No. 205. They may also, as part of their motor vehicle inspection regulations, prohibit vehicle owners from modifying their windows, through tinting or otherwise, in any way that would violate Standard No. 205.

ID: 1985-03.30

Open

TYPE: INTERPRETATION-NHTSA

DATE: 08/13/85

FROM: AUTHOR UNAVAILABLE; Jeffrey R. Miller; NHTSA

TO: Mike Landgraf -- Land Design Group

TITLE: FMVSS INTERPRETATION

TEXT:

Mr. Mike Landgraf Land Design Group 685 Lakebird Dr. Sunnyvale, CA 94089

Thank you for your letter of May 21, 1985, concerning Federal regulations that might affect a cargo system for hatch back cars that you are developing. You requested confidentiality for your specific product description and drawing. Since your design has not been marketed as yet, we are granting your request for confidentiality. The following discussion provides an explanation of how our standards would affect a device such as yours.

The National Traffic and Motor Vehicle Safety Act authorizes our agency to issue Federal Motor Vehicle Safety Standards that apply to new motor vehicles and items of motor vehicle equipment. We have not issued any standard that directly applies to a cargo system such as yours. However, use of your system could be affected by Standard No. 111, Rearview Mirrors) which sets performance requirements for rearview mirrors; a copy of the standard and an information sheet discussing the responsibilities of vehicle and equipment manufacturers under our regulations is enclosed for your reference.

Standard No. 111 provides that each inside rearview mirror must provide a specified field of view to the rear of the vehicle. If the field of view of the inside mirror in a new vehicle is obstructed by anything other than head restraints or seated occupants, then an outside rearview mirror must be provided on the passenger's side of the vehicle. Thus, if your product were installed in a new vehicle by a manufacturer or dealer prior to its sale to a consumer, and if installation of your product would mean that the inside rearview mirror would no longer comply with the applicable field of view requirements, they would have to ensure the vehicle was equipped with the necessary additional mirror required by Standard No. 111.

In 1974, Congress amended the National Traffic and Motor Vehicle Safety Act to address the problem of persons tampering with safety equipment installed on a motor vehicle by adding section 108(a)(2)(A) to the Act. That section provides, in part, that:

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

Thus, if a manufacturer, distributor, dealer, or motor vehicle repair business adds your product to a used vehicle and if its installation would mean that the inside rearview mirror would no longer comply with the applicable field of view requirements, they would have to install an outside passenger side mirror. Section 108(a)(2)(A) does not establish any limitations on an individual vehicle owner's ability to alter his or her own vehicle. Thus, under Federal law, individual vehicle owners can themselves install any equipment they want on their vehicles, regardless of whether that equipment would render inoperative the compliance of the vehicle with the performance requirements of Standard No. 111. They would, of course, still have to comply with any applicable State laws.

I hope this information is of assistance to you. If you have further questions, please let me know.

Sincerely,

Jeffrey R. Miller Chief Counsel

Enclosures

ID: 1985-03.31

Open

TYPE: INTERPRETATION-NHTSA

DATE: 08/14/85

FROM: C.RICHARD FRAVEL

TO: WHOM IT MAY CONCERN

TITLE: RE: JOSEPH CIAMPA JR

ATTACHMT: ATTACHED TO LETTER DATED 10/27/88 FROM ERIKA Z JONES TO BEVERLY B BYRON; REDBOOK A32, STANDARD 205 MEMORANDUM DATED 08/04/88 FROM ARTHUR J LOMART TO WHOM IT MAY CONCERN; LETTER DATED 08/01/88 FROM C. E. SHUE TO JOSEPH CIAMPH JR RE 0590630; LETTER DATED 09/12/88 FROM NANCY F MILLER TO BEVERLY B BYRON; LETTER DATED 08/25/88 FROM BEVERLY B BYRON TO NANCY MILLER; LETTER DATED 08/24/88 FROM JOSEPH L. CIAMPA TO BEVERLY B. BYRON

TEXT: This is to state that the a boy has been my patient for many years He has severe headaches when exposed to glare of sunlight therefore a digital solution is the use of sun shade in his automobile

ID: 1985-03.32

Open

TYPE: INTERPRETATION-NHTSA

DATE: August 18, 1985

FROM: John Womack -- Acting Chief Counsel, NHTSA; Signature by Weinstein

TO: Robert J. Ponticelli -- President, American International

TITLE: NONE

ATTACHMT: ATTACHED TO 7/25/95 LETTER FROM ROBERT J. PONTICELLI TO JOHN WOMACK (OCC 11083)

TEXT: Dear Mr. Ponticelli:

This replies to your letter of July 25, 1995, asking for an opinion "on the use of Electro-Luminescent Strip Lighting on motor vehicles." The device in, question "is an ornamental light which produces less than .05 candela/sq. inch." You have enclosed a brochure which shows the strip in use as a license plate frame and to mark the sides or perimeter of a vehicle. We assume that you are not asking about the license plate frame but only the "Lighted Pin Striping". The "Lighted Pin Striping" comes in "basic white" but once applied, seven colors of overlay tape are available to change the color. The brochure shows it in shades of blue and pink. You would like our views "on the installation of this product by regulated parties such as new car dealers and non-regulated entities such as aftermarket specialty shops and vehicle owners."

We are pleased to provide you with the interpretation you seek: The basic obligation of a new-car dealer is to deliver a new car that remains in compliance with all the applicable Federal motor vehicle safety standards for which its manufacturer has certified compliance. In other words, the dealer must ensure that none of its actions before the sale of a new vehicle create a noncompliance with a safety standard. Further, if a dealer alters a vehicle before sale other than by the addition, substitution, or removal of readily attachable components, or minor finishing operations such as painting, is required to certify that the altered vehicle continues to meet the standards.

The Federal new vehicle standard that relates to your product is Standard No. 108 Lamps, Reflective Devices, and Associated Equipment. This standard permits a new car dealer to add supplementary lighting equipment such as the luminescent strip if the supplementary equipment does not impair the effectiveness of the lighting equipment required by Standard No. 108. The most common cause of impairment is lighting equipment that creates confusion with, or distraction from, the purpose of any item of required lighting equipment. Under Standard No. 108's lighting scheme, the color of lamps on the front of a vehicle are restricted to white and amber. On the side of the vehicle, side marker lamps and reflectors must be only amber to the front and red to the rear. Rear lighting is red or amber, with the color white permitted for the backup lamp only. The Lighted Pin Striping comes in a variety of colors. Your brochure shows one that is pink or red in color mounted on the front of a vehicle. We believe it possible that a motorist seeing a color of light on the front of the vehicle generally used on the rear or on the side at the rear could be distracted from the driving task. There is also the possibility that the strip would be bright enough to mask and thereby reduce the effectiveness of an adjacent front or rear turn signal, or stop lamp. In general, the agency tries to discourage the use of novelty lighting devices because of the uncertain reaction an unfamiliar light or reflection may cause in other drivers on the roadway. However, the determination as to whether installation of the lighting strip would impair the efficiency of required lighting equipment is initially that of the new car dealer who must determine whether his modifications to a new vehicle might take it out of compliance. Unless that determination is clearly erroneous, NHTSA will not contest it.

With respect to sales in the aftermarket, installation by a manufacturer, distributor, dealer, or motor vehicle repair business of the lighting strip would be prohibited if the use of the strip would, in the words of the statute, "make inoperative" any of the required lighting equipment. We tend to equate "make inoperative" and "impair effectiveness" so that the same considerations would have to be taken into account in installing the lighting equipment on a used as well as a new car. However, this prohibition does not extend to the vehicle owner who, under Federal law, may install the lighting strip regardless of its effect upon compliance.

Nevertheless, even if novelty lighting equipment does not violate Federal law, the ultimate decision of its acceptability is that of the State in which the lighting strip is to be used. It is our understanding that, for example, that California requires any emitted or reflected light from the front of vehicles to be white or yellow in color, which would appear to preclude installation of the lighting strip in colors other than these. For an opinion on the treatment of the lighting strip under State laws, we suggest that you write for an opinion to the American Association of Motor Vehicle Administrators, 4600 Wilson Boulevard, Arlington, Va. 22203.

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

ID: 1985-03.33

Open

TYPE: INTERPRETATION-NHTSA

DATE: 08/21/85

FROM: AUTHOR UNAVAILABLE; Jeffrey R. Miller; NHTSA

TO: Mr. H. Moriyoshi

TITLE: FMVSS INTERPRETATION

TEXT:

Mr. H. Moriyoshi Executive Vice President and Control Manager Mazda (North America), Inc. 24402 Sinacola Court Farmington Hills, Michigan 48018

Dear Mr. Moriyoshi:

Thank you for your letter of July 2, 1985, requesting an interpretation of Federal Motor Vehicle Safety Standard No. 201, Occupant Protection in Interior Impact. You specifically asked whether a design alternative you are considering for an interior storage compartment would have to meet the requirements of S3.3 of the standard. An explained below, we would consider your design to be an interior compartment door assembly and thus subject to the requirements of S3.3 of the standard.

You described your design as an interior surface with an integrated map/magazine compartment. Your proposed design consists of a compartment with a rigid exterior surface that remains open at a fixed width. You said that when a motorist wanted to stow a thicker package in the compartment, the opening could be expanded to a greater width. The drawing accompanying your letter shows that the exterior surface (i.e., the surface nearest to a vehicle occupant) is hinged; the movement of the hinged surface is restricted by a spring. It appears from your drawing that of the spring broke or otherwise became disengaged in a crash, the exterior surface of the compartment would swing open on its hinge and be struck by a vehicle occupant. Such an action is similar to what could happen with the conventional hinged glovebox or other doors in a vehicle. We would therefore consider your proposed design to be a interior compartment door assembly.

I hope this information is of assistance to you. If you have further questions, please let me know.

Sincerely, Jeffrey R. Miller Chief Counsel MAZDA July 2, 1985

Mr. Jeffrey Miller Chief Counsel National Highway Traffic Safety Administration 400 Seventh Street, S.W. Washington, D.C. 20590

Re: Request for Interpretation of Federal Motor Vehicle Safety Standard 201, Occupant Protection In Interior Impact

Dear Mr. Miller,

Mazda has developed several design alternatives for interior storage compartments. Among them is the use of an interior surface with an integrated map/magazine pocket. In many past and current designs, auto manufacturers have utilized rigid molded plastic and flexible vinyl and fabric as the materials with which to provide a map/magazine pocket. On those circumstances, the map/magazine pocket was clearly interpretated by both the NHTSA and the manufacturers as being only a pocket and, therefore, not subject to the performance requirements of FMVSS 201, S. 3.3.

However, in consideration of the concept that Mazda is reviewing, the interpretation of the Standard does not appear so straightforward. Our proposed design consists of a pocket, in the usual sense, that remains open at a fixed width. In situations where a thicker package would be required to be stowed, the rigid pocket opening could be expanded to a greater width. After examination of this design, we have tentatively determined that this would not be considered an "interior compartment door assembly" in the literal sense as it would always be in the open position and subsequently not required to meet the conformance criteria of S. 3.3 of FMVSS 201.

Mazda requests that your office review this matter, with reference to the attached sketch, and indicate how the NHTSA would interpret this design.

Thank you. Sincerely, H. Moriyoshi Executive Vice President and General Manager HM/mLs Attachment

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.