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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 1701 - 1710 of 2067
Interpretations Date

ID: nht90-4.81

Open

TYPE: Interpretation-NHTSA

DATE: December 13, 1990

FROM: Paul Jackson Rice -- Chief Counsel, NHTSA

TO: Danny Pugh -- Engineering Manager, Utilimaster Corporation

TITLE: None

ATTACHMT: Attached to letter dated 9-13-90 to Chief Counsel, NHTSA from Danny Pugh (OCC 5214)

TEXT:

This responds to your letter seeking an interpretation of Standard No. 208, Occupant Crash Protection (49 CFR S571.208). More specifically, you asked about the requirements for safety belts at the various seating positions in vehicles with a gross vehic le weight rating under 10,000 pounds that you called "van conversions."

You first asked whether a "van conversion" would be classified as a passenger car, truck, or multipurpose passenger vehicle. Vehicles commonly called "vans" may be classed in four different vehicle categories (set forth at 49 CFR S571.3) for the purpose s of our safety standards, depending on the configuration of the particular "van." Most cargo vans are classified as "trucks" under our safety standards, because those vehicles are "designed primarily for the transportation of property or special purpos e equipment." Most passenger vans are classified as "multipurpose passenger vehicles," because they do not meet the definition of a "truck" but are constructed on a truck chassis." Those vans that have eleven or more designated seating positions are cl assified as "buses" because they are "designed for carrying more than 10 persons. Finally, one minivan (the Nissan Axxess) was certified by its manufacturer as a "passenger car" because it was "designed for carrying 10 persons or less."

Additionally, the National Traffic and Motor Vehicle Safety Act places the responsibility for classifying a particular vehicle in the first instance on the vehicle's manufacturer. For this reason, NHTSA does not approve or endorse any vehicle classifica tion before the manufacturer itself has classified a particular vehicle. NHTSA may reexamine the manufacturer's classification in the course of any enforcement actions. If you are interested in the appropriate classification for a particular van conver sion, we will offer our tentative opinion if you will provide us with detailed information on the van conversion in which you are interested.

You next asked on what date safety belts were required in "van conversions," what type of safety belts, and at what locations those belts were required. As explained above, we do not class vehicles as "van conversions" for the purposes of our safety sta ndards. If the vans were classed as passenger cars, passenger cars manufactured on or after January 1, 1968 were required to have lap/shoulder safety belts at the front outboard seating positions and either lap/shoulder or lap-only safety belts at every other seating position in the car. Beginning December 11, 1989, passenger cars were required to have lap/shoulder safety belts at both front and rear outboard seating positions, with either lap/shoulder or lap-only safety belts at every other seating p osition. Since September

1, 1989, all passenger cars are required to be equipped with automatic crash protection for outboard front-seat occupants.

Multipurpose passenger vehicles and trucks with a gross vehicle weight rating of 10,000 pounds or less manufactured on or after July 1, 1971 were required to have lap/shoulder safety belts at the front outboard seating positions and either lap/shoulder o r lap-only safety belts at every other seating position in the vehicle. Beginning September 1, 1991, vans classified as multipurpose passenger vehicles or trucks (other than motor homes) must have lap/shoulder belts at both front and rear outboard seati ng positions, with either lap or lap/shoulder belts at all other seating positions. Motor homes manufactured on or after September 1, 1991 will continue to be required to have lap/shoulder belts at front outboard seating positions and either lap/shoulde r or lap-only safety belts at every other seating position. In addition, effective September 1, 1991 vans must meet dynamic crash test injury criteria for the front outboard seating positions.

If the vans were classed as buses, buses manufactured on or after July 1, 1971 were required to be equipped with either a lap/shoulder or a lap-only safety belt at the driver's seating position. Beginning September 1, 1991, buses with a gross vehicle we ight rating of 10,000 pounds or less (except school buses) must be equipped, with lap/shoulder belts at all front and rear outboard seating positions, and either lap/shoulder or lap-only safety belts at every other seating position.

Also, the agency has proposed extending the automatic crash protection requirements mentioned above to these other vehicle classifications.

I hope this information is useful. If you have any further questions or need some additional information on this subject, please contact Steve Kratzke of my staff at this address or by telephone at (202) 366-2992.

ID: nht92-2.41

Open

DATE: 11/09/92

FROM: MARION C. BLAKEY ADMINISTRATOR, NHTSA

TO: HONORABLE JOHN D. DINGELL -- CHAIRMAN, COMMITTEE ON ENERGY AND COMMERCE, U.S. HOUSE OF REPRESENTATIVES

COPYEE: MR. AARON GORDON

ATTACHMT: ATTACHED TO LETTER DATED 9-17-92 FROM JOHN D. DINGELL TO MARION C. BLAKEY

TEXT: Thank you for your letter of September 17, 1992, enclosing correspondence from Mr. Aaron Gordon concerning seat belts on school buses. You requested comments on Mr. Gordon's letter and on H.R. 896, a bill referred to in Mr. Gordon's letter.

The issue of safety belts on school buses is an important topic which the National Highway Traffic Safety Administration (NHTSA) has thoroughly studied for many years. School bus transportation has been and continues to be one of the safest forms of transportation in America. Every year, approximately 370,000 public school buses travel approximately 3.5 billion miles to transport 22 million children to and from school and school-related activities. Since NHTSA began tracking traffic fatalities in 1975, an average of 16 school bus occupants per year have sustained fatal injuries. While each of these fatalities is tragic, the number of school bus occupant fatalitie is small compared to the number of occupant fatalities to children in other types of vehicles. For example, in 1989 there were 5,287 deaths among children aged five to 18 in vehicles other than school buses.

In 1977, NHTSA issued Federal motor vehicle safety standard No. 222, School Bus Passenger Seating and Crash Protection, which established minimum crash protection levels for occupants of all school buses. For large school buses, those with a gross vehicle weight rating (GVWR) above 10,000 pounds, the standard requires occupant protection through a concept called "compartmentalization" -- strong, well-padded, well-anchored, high-backed, evenly spaced seats. The effectiveness of "compartmentalization" has been confirmed by independent studies by the National Transportation Safety Board (NTSB) and the National Academy of Sciences (NAS). Under the current requirements of Standard No. 222, small school buses, those with a GVWR of 10,000 pounds or less, must provide "compartmentalization" and be equipped with lap or lap/shoulder belts at all designated passenger seating positions. The agency believes that safety belts are necessary in addition to "compartmentalization" in small school buses because of their smaller size and weight, which are closer to that of passenger cars and light trucks.

In 1987, the NTSB completed a study of the crashworthiness of large school buses, and concluded that most school bus occupant fatalities and serious injuries were "attributable to the occupants' seating position being in direct line with the crash forces. It is unlikely that the availability of any type of restraint would have improved their injury outcome."

In 1989, NAS completed a study of means to improve school bus safety and concluded that "the overall potential benefits of requiring seat belts on large school buses are insufficient to justify a Federal requirement for mandatory installation. The funds used to purchase and maintain seat belts might better be spent on other school bus safety programs and devices that could save more lives and reduce more injuries." The NAS pointed out that since children are at greater risk of being killed in school bus loading zones (i.e., boarding and leaving the bus) than on board school buses, "a larger share of the school bus safety effort should be directed to improving the safety of bus loading zones." A summary of the NAS report is enclosed.

In response to the recommendations from the NAS study, NHTSA has initiated several rulemaking actions, such as improvements to school bus visibility by the driver and requiring stop signal arms on school buses, designed to improve the safety of students in school bus loading zones. Besides the actions taken in response to the NAS study, NHTSA has initiated several other rulemaking activities to improve further the safety of school buses, e.g., increasing the number of emergency exits, establishing wheelchair securement/occupant restraint requirements, and improving the body joint strength requirements.

While there are no Federal requirements for safety belts on large school buses, states are free to install them if they feel it is in the best interest in their state. However, as noted in the NAS report, if the safety belts are to be beneficial, "states and local school districts that require seat belts on school buses must ensure not only that all school bus passengers wear the belts, but that they wear them correctly."

In summary, the safety record of school buses is outstanding. As such, there is no compelling evidence to suggest that safety belts would provide even higher levels of occupant crash protection. Also, the agency agrees with the conclusion from the NAS report, that there is insufficient reason for a Federal mandate for safety belts on large school buses.

I hope you find this information helpful.

ATTACHMENT TRB REPORT SUMMARY, DATED MAY, 1989, ENTITLED SPECIAL REPORT 222-IMPROVING SCHOOL BUS SAFETY. (TEST OMITED)

ID: nht92-3.10

Open

DATE: October 22, 1992

FROM: Paul Jackson Rice -- Chief Counsel, NHTSA

TO: Paul D. Barron -- Professional Technologies International Inc.

TITLE: None

ATTACHMT: Attached to letter dated 8/25/92 from Paul D. Barron to Paul Jackson Rice and Marvin Shaw (OCC-7685)

TEXT:

This responds to your inquiry about this agency's requirements that are applicable to your product, a "UV Heat Shield." Your sales literature explains that this product is a UV protective window film that permits between 88 to 92 percent light transmission through the front Windshield. You state that the UV Heat Shield blocks ultra-violet radiation from entering the vehicle's occupant compartment. I am pleased to have this opportunity to explain our regulations to you.

By way of background information, section 103 of the National Traffic and Motor Vehicle Safety Act ("Safety Act," 15 U.S.C. 1392) authorizes NHTSA to issue safety standards for new motor vehicles and new items of motor vehicle equipment. NHTSA does not however approve or certify any vehicles or items of equipment. Instead, the Safety Act establishes a "self- certification" process under which each manufacturer is responsible for certifying that its products meet all applicable safety standards. The agency periodically tests vehicles and items of equipment for compliance with the standards. In addition, the Safety Act requires manufacturers to recall and remedy any motor vehicle or item of motor vehicle equipment that contains a safety-related defect.

Under the authority of the Safety Act, NHTSA has issued Standard No. 205, which specifies performance and location requirements for glazing used in vehicles. These requirements include specifications for minimum levels of light transmittance (e.g., 70 percent in areas requisite for driving visibility, which includes all windows in passenger cars). The purpose of this requirement is to ensure driver visibility through the windows, thereby reducing the risk of a motor vehicle crash.

Manufacturers must certify that their new vehicles comply with the requirements of all applicable safety standards. If, before the vehicle were first purchased by a consumer, a subsequent manufacturer or dealer were to install your window film over the glazing, that subsequent manufacturer would be required to certify that the vehicle continues to comply with the requirements of Standard No. 205 with the window film installed. I note that while you state that your window film permits between 88 to 92 percent light transmission through the front windshield, it is the windshield with your product installed that would be required to meet the 70 percent light transmittance requirement.

After a vehicle is first sold to a consumer, modifications to the vehicle are affected by S108(a)(2)(A) of the Safety Act (15 U.S.C. 1397(a)(2)(A)). That section prohibits any manufacturer, distributor, dealer, or motor vehicle repair from knowingly "rendering inoperative" any device or element of design installed in a vehicle in compliance with any applicable safety

standard. This provision means that no manufacturer, dealer, distributor, or repair business could install window tinting film if the addition of the tinting film to the glazing would result in a light transmittance of less than 70 percent, or otherwise cause the vehicle to no longer comply with the applicable requirements of Standard No. 205. Violations of this "render inoperative" prohibition can result in Federal civil penalties to the manufacturer, dealer, distributor, or repair business of up to $1,000 for each noncomplying installation.

Section 108(a)(2)(A) of the Safety Act does not affect vehicle owners. Hence, vehicle owners themselves may install tinting film or any other product on the glazing of their vehicle, regardless of whether the installation causes the vehicle to no longer comply with Standard No. 205. Individual States have the authority to regulate the operational use of vehicles by their owners, and, therefore, have the authority to regulate or preclude individual owner modifications to the glazing of their vehicles. If you are interested in further information on the provisions on the provisions of State laws, you may wish to contact the American Association of Motor Vehicle Administrators, 4600 Wilson Boulevard, Arlington, VA 22203.

In addition, under the Safety Act, the UV Heat Shield would be considered an item of motor vehicle equipment. Your company, as a manufacturer of motor vehicle equipment, would be subject to the requirements in S151-159 of the Safety Act concerning the recall and remedy of products with safety related defects. In the event that NHTSA or the product's manufacturer determines that a product that is an item of motor vehicle equipment contains a safety-related defect, the manufacturer is responsible for notifying purchasers of the defective equipment and remedying the problem free of charge.

I have also enclosed a general information sheet for new manufacturers which summarizes NHTSA's regulations and explains where to obtain copies of Federal motor vehicle safety standards and other regulations.

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

ID: nht88-2.64

Open

TYPE: INTERPRETATION-NHTSA

DATE: 07/08/88

FROM: ERIKA Z. JONES -- NHTSA CHIEF COUNSEL

TO: NORMAN D. SHUMWAY -- CONGRESS

TITLE: NONE

ATTACHMT: ATTACHED TO LETTER DATED 11/29/89 ESTIMATED, FROM JEFFREY R. MILLER -- NHTSA TO JOHN D. DINGELL -- HOUSE; REDBOOK A34; STANDARD 205; LETTER DATED 09/22/89 FROM JOHN D. DINGELL -- HOUSE TO JEFFREY R. MILLER; LETTER DATED 08/25/89 FROM CONSTANCE A. MORELLA -- HOUSE TO NORMAN Y. MINETA -- HOUSE; LETTER DATED 07/31/89 FROM W. MARSHALL RICKERT -- MVA TO CONSTANCE A. MORELLA; LETTER DATED 11/01/88 FROM ERIKA Z. JONES -- NHTSA TO BEVERLY B. BYRON -- HOUSE; INTERPRETATION STANDARD 205

TEXT: Dear Mr. Shumway:

Thank you for your recent letter on behalf of your constituent, Mr. Ernest P. Crockett, who received a State of California citation for having tinted film on his car windows for medical reasons. You asked me to review Mr. Crockett's letter and provide a ny comments or assitance that I could. I am pleased to have this opportunity to do so.

Mr. Crockett suffers from systemic lupus erythematosus and as a result needs protection from ultra-violet rays. He consulted with the California Highway Patrol and was told that the law allowed him to use tinting film on his car windows, if he had a med ical letter stating that this was necessary. Not known at this time to Mr. Crockett was a provision in the California law prohibiting the use of noncomplying medically-necessary devices during darkness. Mr. Crockett had Security Glass System's "Almost Clear" tinting permanently installed on his windshield and front windows and was subsequently given a citation by the California Patrol for not being in compliance with @ 26708(a)(2) of the California Vehicle Code. Upon further inquiry, Mr. Crockett lea rned that his film was unacceptable because it had been permanently affixed, and that a much darker tint (blocking 70 percent of light) film was allowable, if it was removable at darkness.

Some background information on the Federal requirements in this area 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. The safety standard that specifies performance and location requirements for glazing used in vehicles is Standard No. 205, Glazing Materials. These requirements include specifications for minimum levels of light transmittance (70 pe rcent in areas requisite for driving visibility, which includes all windows in passenger cars). Under Standard 205 no manufacturer or dealer is permitted to install solar films and other sun screen devices in a new vehicle, without certifying that the v ehicle 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 the vehicle's glazing are affected by section 108(a)(2)(A) of the Safety Act. That section prohibits any manufacturer, dealer, distributor, or repair business from "rendering inoperative" any device or element of design installed in a vehicle in compliance with any safety standard. In the case of glazing, this means that no manufacturer, dealer, distributor, or repair business could install a sun screen device that would result in a light t ransmittance of less than 70 percent for any window of a passenger car, or result in the window no longer complying with any other requirements of Standard No. 205. Violations of this "render inoperative" provision can result in Federal civil penalties to the manufacturer, dealer, distributor, or repair business of up to $ 1000 for each noncomplying installation. The materials enclosed with Mr. Crockett's letter appear to show that the business that installed the film on his car windows did not render inoperative compliance with the light transmittance requirements of Standard No. 205, since the film installed on Mr. Crockett's car windows is said to have 70 percent light transmittance.

However, Federal law does not affect vehicle owners. Vehicle owners may alter their own vehicles and operate them on the highways as they please, even if the vehicle's glazing no longer complies with the requirements of Standard No. 205. We do, however, urge vehicle owners not to take actions that degrade the performance of required safety features.

The individual States have the authority to govern the operational use of vehicles by their owners. In this case, the State of Californai has exercised its authority to establish requirements in this area. The wisdom and fairness of applying those requ irements to individuals in Mr. Crockett's situation is something to be decided by the State of California, not the Federal government.

I hope this information is helpful. If you have any further questions or need some more information on this subject, please do not hesitate to contact Ms. Susan Schruth of my staff at this address, or by telephone at (202) 366-2992.

Sincerely,

ID: nht92-7.41

Open

DATE: April 14, 1992

FROM: Paul Jackson Rice -- Chief Counsel, NHTSA

TO: Brad Beach

TITLE: None

ATTACHMT: Attached to letter dated 2/10/92 from Brad Beach to Taylor Vinson (OCC 6982)

TEXT:

This responds to your letter to Mr. Taylor Vinson of my staff, inquiring about Federal safety standards that apply to objects designed to be attached to the rear and side windows of passenger automobiles. Although you did not specify what this object is, you described the object as being "not transparent," rectangular in shape, with dimensions of 12 inches in width by 18 inches in length. The following discussion explains how our safety standards apply to your product.

Some general background information on the Federal motor vehicle safety laws and regulations may be helpful. Our agency, the National Highway Traffic Safety Administration (NHTSA), is authorized under the National Traffic and Motor Vehicle Safety Act (Safety Act), to issue safety standards applicable to new motor vehicles and 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 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.

The agency has issued two Federal Motor Vehicle Safety Standards that might affect your product. These are Standards No. 205, Glazing Materials, and No. 111, Rearview Mirrors. Standard No. 205 specifies performance and location requirements for glazing used in vehicles. These requirements include specifications for minimum levels of light transmittance (70 percent in areas requisite for driving visibility, which includes all windows in passenger automobiles). Standard No. 111 sets performance requirements for rearview mirrors. The standard provides that each inside rearview mirror must provide a specified field of view to the rear of the vehicle.

Manufacturers must certify that their new vehicles complies with the applicable requirements of Standards No. 205 and 111. If, before the vehicle were first purchased by a consumer, a subsequent manufacturer or dealer were to install a device that was not readily removable over the glazing and that impaired the field of view to the rear of the vehicle, that subsequent manufacturer or dealer would be required to certify that the vehicle continues to comply with the requirements of Standards No. 111 and 205 with this additional device installed.

After a vehicle is first sold to a consumer, modifications to a vehicle are affected by section 108 (a)(2)(A) of the Safety Act. That section prohibits manufacturers, distributors, dealers, and repair shops from knowingly "rendering inoperative" any device or element of design installed on a vehicle in compliance with our standards. Thus, none of these commercial entities may

legally install a sun screen device or other device on a vehicle, if the device would cause the vehicle to no longer comply with the requirements of Standards No. 111 and/or 205.

In addition, any, manufacturer of motor vehicle equipment, such as a device that is mounted on the glazing of motor vehicles and that is not readily removable, is responsible for the recall and remedy of all such devices, if it is determined that the device contains a defect related to motor vehicle safety.

You should note that the "render inoperative" prohibition in section 108 (a) (2)(A) of the Safety Act does not affect vehicle owners, who may themselves alter their own vehicles as they please, without violating any provision of Federal law. Thus, Federal law would not prohibit you, as an individual vehicle owner, from installing any devices you wish in the windows of your own vehicle, even if such installation causes the vehicle to n longer comply with Standards No. 205, No. 111, or any other of our safety standards. The agency, however, urges vehicle owners not to take actions that would degrade the performance of the safety features designed into their vehicles.

However, you should also note that the individual States have the authority to regulate the operation and use of vehicles by their owners and modifications owners can make to their own vehicles. Each of the States have exercised this authority to establish requirements for vehicles to be registered and operated within their borders. I cannot advise you about the laws established by each of the States. If you wish to learn whether Virginia or any other State prohibits the installation of your device in a vehicle, you may wish to contact the Department of Transportation for those States in which you are interested.

I hope this information is helpful. Please feel free to contact Dorothy Nakama of my staff at this address or by telephone at (202) 366-2992 if you have any further questions or need additional information.

ID: nht92-7.6

Open

DATE: May 14, 1992

FROM: Paul Jackson Rice -- Chief Counsel, NHTSA

TO: Michael F. Hecker -- Micho Industries

TITLE: None

ATTACHMT: Attached to letter dated 3/10/89 from Erika Z. Jones to Joseph Mikoll (Std. 222); Also attached to letter dated 1/8/90 from Jerry Ralph Curry (signed by Jeffrey R. Miller) to Robert J. Lagomarsino (Std. 222); Also attached to letter dated 1/31/91 from Paul J. Rice to Scott K. Hiler (Std. 222); Also attached to letter dated 11/3/88 from Erika Z. Jones (signed by Stephen P. Wood) to Joseph Mikoll (Std. 222); Also attached to letter dated 4/2/92 from Michael F. Hecker to Paul J. Rice (OCC 7174)

TEXT:

This responds to your letter of April 2, 1992 concerning possible interpretations of section S5.1.4(c) of Federal Motor Vehicle Safety Standard No. 222, School bus passenger seating and crash protection, as it applies to the R-BAR Passenger Restraint System (R-BAR). (While your letter refers to section S5.1.2(c), you clarified in a telephone conversation with Mary Versailles of my staff that your concerns relate to section S5.1.4(c).) The R-BAR is a padded restraining device, and the ends of the device attach to the rear of a school bus seatback. The device folds down for the purpose of restraining the passengers seated in the next rearward seat. Your letter states that Micho Industries believes that:

A. The standard is not applicable to the R-BAR passenger restraint.

B. The R-BAR complies with the intent of Standard No. 222.

To support these statements you offer the following reasons:

1. The R-BAR is not a fixed position device, nor is it a rigid component of the seat structure.

2. In the event of a rear impact, the R-BAR incorporates a design that allows it to move upward, and away, from the adjoining seat which would thus allow the minimum clearance as intended.

3. The standard in question (571.222, section S5.1.4(c)) was written without the authors having the benefit of knowledge of this type of device and thus allowances were not included for its possible use.

The issue of whether Standard No. 222 is applicable to a device such as the R-BAR has been addressed previously by this agency. Enclosed are copies of four letters concerning similar devices (Mr. Joseph F. Mikoll, November 3, 1988, and March 10, 1989; The Honorable Robert J. Lagomarsino, January 8, 1990; and Mr. Scott K. Hiler, January 31, 1991). Those letters make it clear that if a device such as the R-BAR is installed in any new school bus, the school bus manufacturer must certify that the vehicle meets all applicable safety standards with the device installed. The letters also make it clear that such devices may not legally be installed in used school buses by commercial establishments such as repair businesses if the effect of such installation is

to take the vehicle out of compliance with any safety standard.

With respect to your assertion that the R-BAR complies with the intent of Standard No. 222, the National Traffic and Motor Vehicle Safety Act requires NHTSA to issue Federal motor vehicle safety standards that prescribe objective requirements. Under the Act, manufacturers must certify that their products comply with the requirements of all applicable standards and not merely with some alleged "intent" of a standard. Further, manufacturers may not certify products based on speculation that the agency would have established different requirements had it known of a particular design.

With regard to your specific concerns about S5.1.4(c), that section states that when a seat back is subjected to a specified force, "(t)he seat shall not deflect by an amount such that any part of the seat moves to within 4 inches of any part of another passenger seat in its originally installed position." In the enclosed letter to Mr. Hiler, the agency stated that "once the restraining bar is attached to the seatback, it is part of the seatback." Therefore, the R-BAR would be considered a part of the seat subject to the requirements of S5.1.4.(c)

Section S5.1.4(c)'s requirements are not limited to rigid components of a seat, and therefore the fact that the R-BAR is not a fixed position device is not relevant to the applicability of those requirements. With respect to your argument that the device will move upward and away in the event of a rear impact, Standard No. 222 sets forth a specific test procedure for the requirement specified in S5.1.4(c). Manufacturers are required to certify that a vehicle complies with the requirements of the standard when tested in accordance with that test procedure.

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

ID: nht92-6.23

Open

DATE: May 29, 1992

FROM: Paul Jackson Rice -- Chief Counsel, NHTSA

TO: John J. Jacoby -- President, Cleartec

TITLE: None

ATTACHMT: Attached to letter dated 4/6/92 from John J. Jacoby to Samuel K. Skinner (OCC 7236)

TEXT:

I have been asked to respond to your April 6, 1992 letter to former Secretary Skinner, because our agency, the National Highway Traffic Safety Administration (NHTSA), is the part of the Department of Transportation that administers the program about which you asked. Specifically, your letter asks whether there are any Federal regulations that affect a new product Cleartec has developed. The product, Clean Sweep Strips, is a transparent material applied to the windshield in a herringbone pattern, in the path of the wipers, to clean the wipers. I am pleased to have this opportunity to explain our regulations to you.

By way of background information, S 103 of the National Traffic and Motor Vehicle Safety Act (Safety Act, 15 U.S.C. 1392) authorizes NHTSA to issue safety standards for new motor vehicles and new items of motor vehicle equipment. NHTSA does not, however, approve or certify any vehicles or items of equipment. Instead, the Safety Act establishes a "self-certification" process under which each manufacturer is responsible for certifying that its products meet all applicable safety standards. The agency periodically tests vehicles and items of equipment for compliance with the standards. In addition, the Safety Act requires manufacturers to recall and remedy any motor vehicle or item of motor vehicle equipment that contains a safety-related defect.

Your letter states that Clean Sweep Strips could be manufactured into new windshields. If a windshield with Clean Sweep Strips were installed as original equipment by a manufacturer of a new motor vehicle, the manufacturer would have to certify that the vehicle, with the Clean Sweep Strips installed, complies with all applicable safety standards. NHTSA has issued two safety standards, compliance with which might be affected by the installation of your Clean Sweep Strips. First, Standard No. 205, Glazing Materials, establishes a number of requirements for light transmittance, abrasion resistance, and optical deviation and visibility distortion for windshields. Second, Standard No. 104, Windshield Wiping and Washing Systems, establishes requirements for a minimum area that must be wiped by the wiping system, and the frequency at which the wiping system must operate. Any manufacturer that installed your product as original equipment on a windshield would have to certify that the windshield continued to comply with Standards No. 205 and 104 with your product installed.

After the first sale to a consumer, a vehicle is no longer required by Federal law to conform to all safety standards. However, S108(a)(2)(A) of the Safety Act provides as follows: 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...

This provision means that a manufacturer, dealer, distributor, or repair business cannot install your Clean Sweep Strips on any vehicle if such installation results in the vehicle no longer complying with Standard No. 205 or 104. Violations of this "render inoperative" prohibition are punishable by civil fines of up to $1,000 per violation.

I note that the "render inoperative" prohibition does not affect modifications made by vehicle owners to their own vehicles. Thus, individual vehicle owners may install your Clean Sweep Strips on their own vehicles, even if this installation causes the vehicles to no longer comply with applicable safety standards. Such installations may be regulated, however, by State law. If you are interested in further information on the provisions of State laws, you may wish to contact the American Association of Motor Vehicle Administrators, 4600 Wilson Boulevard, Arlington, Virginia 22203.

Additionally, under the Safety Act, Clean Sweep Strips would be considered an item of motor vehicle equipment. Your company, as a manufacturer of motor vehicle equipment, would be subject to the requirements in SS 151-159 of the Safety Act concerning the recall and remedy of products with safety defects. In the event that NHTSA or a product's manufacturer determines that a product that is an item of motor vehicle equipment contains a safety-related defect, the manufacturer is responsible for notifying purchasers of the defective equipment and remedying the problem free of charge.

Finally, I have enclosed a general information sheet for new manufacturers which summarizes NHTSA's regulations and explains where to obtain copies of Federal motor vehicle safety standards and other regulations.

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

ID: Roberts.1.wpd

Open

    Mr. Mark Roberts
    Engineering Manager
    B&R Manufacturing Inc.
    4600 Wyland Drive
    Elkhart, IN 46516

    Dear Mr. Roberts:

    This responds to your letter asking whether it would be permissible for a member of the transit bus industry to replace a required passenger-side, flat unit magnification mirror installed on new buses having a gross vehicle weight rating (GVWR) of more than 4,536 kg (10,000 pounds) with a 40" to 60"-radius convex mirror. As discussed in a conversation with Eric Stas of my staff, your company manufactures the aftermarket mirrors in question, and you seek confirmation of "What is [a] legal and an illegal mirror once the buses are in revenue service?"

    We would like to begin by explaining that the National Highway Traffic Safety Administration (NHTSA) is authorized to issue Federal motor vehicle safety standards (FMVSSs) that set performance requirements for new motor vehicles and items of motor vehicle equipment. Manufacturers are required to certify that their products conform to our safety standards before they can be offered for sale.

    One of the safety standards we have issued is FMVSS No. 111, "Rearview Mirrors" (49 CFR 571.111). FMVSS No. 111 sets different requirements for buses depending on the GVWR. Buses, other than school buses, with a GVWR of more than 4,536 kg must meet the requirements of S7.1, which requires outside mirrors of unit magnification, each with not less than 323 cm2 of reflective surface, installed with stable supports on both sides of the vehicle. Vehicle manufacturers must install mirrors that comply with S7.1 in order to certify new buses covered under the standard.

    After the first sale of the vehicle, manufacturers, distributors, dealers, and repair businesses are prohibited from "knowingly making inoperative" any device or element of design installed on or in a motor vehicle in compliance with an applicable standard. 49 U.S.C. 30122. In general, the "make inoperative" prohibition requires businesses which modify motor vehicles to ensure that they do not remove, disconnect, or degrade the performance of safety equipment installed in compliance with an applicable standard. If NHTSA determines that a business has violated the "make inoperative" provision, it may assess a civil penalty in the amount of $5,000 per violation (not to exceed $15,000,000 in the aggregate). 49 U.S.C. 30165(a)(1). Thus, a manufacturer of new transit buses or other commercial entity repairing or modifying such buses could not replace a mirror complying with FMVSS No. 111 with another mirror that does not comply with the standard. However, it would be permissible to install your convex mirror on the passenger side of the bus as a supplement to a unit magnification mirror that meets all applicable requirements of FMVSS No. 111.

    The "make inoperative" provision does not apply to the actions of a vehicle owner in modifying his or her own vehicle. Consequently, NHTSA regulations do not prevent transit bus companies from making changes to their own used buses in their own garages or repair and maintenance facilities, even if they cause a vehicle to no longer comply with NHTSA safety standards. However, we urge vehicle owners not to degrade the safety of any system or device on their vehicles, including those required by FMVSS No. 111.

    Further, I note that the Departments Federal Motor Carrier Safety Administration (FMCSA) has jurisdiction over interstate motor carriers operating in the United States. Under FMCSA regulations, there is a provision related to "rear-vision mirrors" at 49 CFR 393.80, which provides in relevant part:

    Every bus, truck, and truck tractor shall be equipped with two rear-vision mirrors, one at each side, firmly attached to the outside of the motor vehicle, and so located as to reflect to the driver a view of the highway to the rear, along both sides of the vehicle. All such regulated rear-vision mirrors and their replacements shall meet, as a minimum, the requirements of FMVSS No. 111 (49 CFR 571.111) in force at the time the vehicle was manufactured.

    49 CFR 393.80(a). Thus, for vehicles covered under FMCSA regulations, there is an ongoing requirement for rear-vision mirrors that meet the requirements of FMVSS No. 111. You or transit bus owners should contact Larry Minor of the FMCSA at (202) 366-4009 for further information about this regulation and the vehicles to which it applies.

    In addition, States have the authority to regulate the use and licensing of vehicles operating within their jurisdictions. Therefore, you or transit bus owners should check with the Department of Motor Vehicles in any State in which the equipment will be sold or used regarding any such requirements.

    I hope you find this information useful. 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,

    Jacqueline Glassman
    Chief Counsel

    ref:111
    d.9/5/03

2003

ID: weeengin.crs

Open

Mr. Jon Shippee
Wee Engineer Inc.
P.O. Box 39
Dayton, IN 47941

Dear Mr. Shippee:

This is in response to your letter of December 13, 1996, in which you state that Wee Engineer Inc. wishes to be registered with the National Highway Traffic Safety Administration (NHTSA) as a vehicle manufacturer under 49 CFR Part 566. You request our assistance in determining the proper classification of the company as a vehicle manufacturer, and in identifying the necessary actions that the company should take.

As described in your letter, Wee Engineer purchases used tractors and trucks and disassembles the components that were added to those vehicles by previous final stage manufacturers, restoring them to the configuration they were in at the incomplete vehicle stage. The company then may either lengthen or shorten the unit, or add or subtract axles and springs, depending on the application for which the vehicle is intended. Additionally, the company may either raise or lower the gross vehicle weight rating (GVWR) originally assigned to the vehicle to meet its intended application.

You state that Wee Engineer is aware that the original certification label must remain on the vehicle. However, the company is concerned that the GVWR identified on that label will not be accurate following the modifications that it performs. As a consequence, you have asked whether Wee Engineer could add an additional label, identifying the GVWR of the vehicle as reconfigured by the company. Incident to this request, you have asked whether Wee Engineer qualifies as a vehicle manufacturer subject to the vehicle certification requirements in 49 CFR Part 567, and if not, whether there is an exception to those requirements that would allow the company to affix certification labels. Alternatively, you have asked whether Part 567 could be amended to grant certification responsibilities to manufacturers who modify a used vehicle's GVWR or change its classification.

From the information you have provided, it appears that Wee Engineer modifies used vehicles and then installs new body and work performing components on those vehicles. Because the Federal motor vehicle safety standards that are issued by NHTSA apply only to new vehicles, those are the only vehicles that must be certified as complying with the standards under 49 CFR Part 567.

NHTSA has issued a regulation at 49 CFR 571.7(e) that specifies the applicability of the standards to vehicles that are assembled from both new and old components. That regulation provides that "[w]hen a new cab is used in the assembly of a truck, the truck will be considered newly manufactured . . . unless the engine, transmission, and drive axle(s) (as a minimum) of the assembled vehicle are not new, and at least two of these components were taken from the same vehicle."

From your description of the manufacturing operations that Wee Engineer conducts, it appears that the engine, transmission and drive axles on the vehicles it assembles are used, and were all originally found on the same vehicle. As a consequence, Wee Engineer is not required to certify those vehicles under 49 CFR Part 567, and cannot be considered a manufacturer for the purpose of those requirements. As noted in your letter, Wee Engineer must ensure that the original certification label remains on these vehicles. Additionally, to avoid a violation of 49 U.S.C. 30112(b), the company must not "knowingly make inoperative any part of a device or element of design installed on or in [those vehicles] in compliance with an applicable motor vehicle safety standard . . . ."

The manufacturer identification requirements in 49 CFR Part 566 apply only to manufacturers of motor vehicles and motor vehicle equipment to which a motor vehicle safety standard applies. See 49 CFR 566.3. Wee Engineer would not be subject to those requirements unless it performs operations other than those described in your letter, which would result in the production of what this agency would regard as a new vehicle under 49 CFR 571.7(e) (i.e., a vehicle in which the engine, transmission, and drive axle(s) are new, or if used, are taken from three separate vehicles).

In response to your questions regarding Part 567, there is currently no express exception that would allow a party other than the original manufacturer of a vehicle to certify its compliance with applicable safety standards. However, in prior interpretation letters, this Office has recognized that when modifications are made to a used vehicle that change the GVWR identified on its certification label, the modifier is permitted to install an additional label that identifies the GVWR of the vehicle as modified. We have allowed this practice so that owners and users of the vehicle may be apprised as to how heavily the vehicle may safely be loaded.

I hope this information is helpful. If you have any further questions regarding this matter, feel free to contact Coleman Sachs of my staff at the address above, or by telephone at 202-366-5238.

Sincerely,

John Womack

Acting Chief Counsel

ref:567

d:5/2/97

1997

ID: nht95-7.19

Open

TYPE: INTERPRETATION-NHTSA

DATE: October 11, 1995

FROM: A.D. Fisher

TO: John Womack, NHTSA

TITLE: NONE

ATTACHMT: ATTACHED TO 11/21/95 LETTER FROM Samuel J. Dubbin to A.D. Fisher (A43; Std. 108)

TEXT: Dear Mr. Womack:

Enclosed are two documents covering the operation, features and highway safety attributes of a modified, rear, third signal light for private and commercial vehicles.

We have been advised by Mr. Blane Laubis, of NHTSA, to forward this to you for your evaluation. Please furnish us with your interpretation and comments about this product, including its use application, as applied to Federal Motor Vehicle Safety Standard (FVMSS) #108.

Thank you very much for your time and consideration.

Sincerely,

Enclosures

THE ENLIGHTNER

Update May 31, 1995

"The Enlightner" replaces the third, center, high-mounted brake light as used in most modern day vehicles.

The light (or lens) has two colors, Red and Amber. The top half of the lens is Amber and the bottom half is Red.

Amber signals "Caution" and the Red signals "Stop" to the driver of the vehicle following a vehicle equipped with "the Enlightner".

Functions of "The Enlightner":

1. The Red portion is lighted when the brake pedal is applied, with the ignition "ON" or "OFF". This function overrides all other functions.

2. The Amber portion is lighted when the transmission selector lever is in any forward position with the accelerator pedal and the brake pedal not depressed. When the brake or accelerator pedals are depressed, the Amber light is "OFF".

When the transmission lever is in Reverse position, the Amber light flashes constantly at the rate of 90 flashes per minute. The flashing is continuous regardless of accelerator pedal and brake pedal positions as long as the transmission selector lever is in Reverse position. This give a warning to everyone behind the vehicle that it is in Reverse and it about to back up or is backing up.

When the accelerator pedal is released ("OFF"), the Amber portion comes "ON", giving a "Caution" signal to the driver of the vehicle behind the vehicle equipped with "The Enlightner" that deceleration is taking place. When the accelerator and brake are not in use, the Amber portion is lighted. When power is reapplied by depressing the accelerator, the Amber light goes "OFF". When deceleration is taking place, Amber is "ON". When the brakes are applied, Amber goes "OFF" and Red comes "ON".

The advantages of "The Enlightener" over similar products is that it keeps the driver following behind totally informed (enlightened) as to the functions of the vehicle ahead. "The Enlightener" will reduce rear-end collisions (one of the most common accidents) and reduce highway traffic injuries and fatalities.

Signed by Alfred D. Fisher Date June 1, 1995

Witnessed by Debra A. Thompson Date June 1, 1995

"The Enlightener"

According to U.S. Government statistics, there are over 10,000,000 highway accidents annually costing Americans $98,100,000,000 with an average cost per accident of over $9,800. Of the 10 million accidents, 25.3%, or approximately 2 1/2 million, are rear-end collisions.

The average reaction time, from the instant the brake signal on a vehicle is seen until the brakes on the vehicle following it are applied, is 3/4 of a second. At 60 miles per hour, a vehicle travels 66 feet in 3/4 of a second. After the brakes are applied, the stopping distance for a car travelling at 60 MPH is a minimum of 146 feet. Therefore, the total distance from seeing the brake signal to a full stop is at least 212 feet.

Introducing "The Enlightener".........

featuring a Deceleration Caution Signal (DCS) in addition to the traditional third brake light. The instant the vehicle accelerator pedal is released and before the brake is applied, "The Enlightener" signals deceleration or a change of vehicle operation. It is estimated that the use of "The Enlightener" will reduce rear-end collisions over 41% and prevent thousands of highway injuries and fatalities. The reduction in costs to Americans would exceed $10.1 Billion annually.

In addition to the Deceleration Caution Signal (DCS), other features of "The Enlightener" include the DCS being illuminated when the vehicle is in any mode other than stopping or normal forward motion, and a flashing caution light when the vehicle transmission selector lever is in reverse position.

"The Enlightener" is truly a unique innovation for improving highway safety that will save hundreds of lives, prevent thousands of injuries and save Americans billions of dollars annually.

Request an Interpretation

You may email your request to Interpretations.NHTSA@dot.gov or send your request in hard copy to:

The Chief Counsel
National Highway Traffic Safety Administration, W41-326
U.S. Department of Transportation
1200 New Jersey Avenue SE
Washington, DC 20590

If you want to talk to someone at NHTSA about what a request for interpretation should include, call the Office of the Chief Counsel at 202-366-2992.

Please note that NHTSA’s response will be made available in this online database, and that the incoming interpretation request may also be made publicly available.

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