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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 8891 - 8900 of 16514
Interpretations Date
 search results table

ID: 1985-04.31

Open

TYPE: INTERPRETATION-NHTSA

DATE: 11/18/85

FROM: JACK H. MCDANIEL -- TRIM PLUS AUTOMOTIVE ACCESSORIES

TO: JEFFEREY R. MILLER -- CHIEF COUNSEL U.S. DEPARTMENT OF TRANSPORTATION NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION

TITLE: NONE

ATTACHMT: ATTACHED TO LETTER DATED 02/20/89 FROM ERIKA Z. JONES -- NHTSA TO JACK H. MCDANIEL LETTER DATED 01/09/86 FROM JACK MCDANIEL TO JEFFREY R. MILLER -- NHTSA

TEXT: Dear Mr. Miller:

Ours is a company specializing in the installation of automotive trim accessories. Most of our services are to the franchised dealers of the major automobile makers, installing accessories on their pre-delivered cars.

Recently there has been some confusion among myself and colleagues regarding the new safety standards for 1986 vehicles concerning the center high-mounted stop lamps which, I have been told, is Motor Vehicle Safety Standard No. 108. Since some of my orders are for installing deck-mounted luggage racks with cross bars on 1986 vehicles, I wonder if you could give me some information about how the new safety standards might affect this. I will list the things I am particularly concerned about.

1. Will deck-mounted racks that have cross bars violate the new safety standards? It seems to me that many racks can be mounted and positioned so that the high-mounted stop lamp is still clearly visible from the rear. How can we determine if one would cause a violation?

2. Would a deck-mounted rack loaded with luggage cause a violation?

I shall await your answers with great interest, Mr. Miller. Many thanks for any information you can give me. May I please here from you as soon as possible?

Respectfully,

ID: 1985-04.32

Open

TYPE: INTERPRETATION-NHTSA

DATE: 11/19/85

FROM: AUTHOR UNAVAILABLE; Erika Z. Jones; NHTSA

TO: The Honorable Tony P. Hall

TITLE: FMVSS INTERPRETATION

TEXT: Thank you for your letter to Administrator Steed on behalf of your constituent, Mr. C. Daniel Raisch, Superintendent of the Oakwood City School District, regarding the school bus regulations issued by this agency. Your letter has been referred to my office for reply.

Superintendent Raisch is concerned with the manner in which our regulations are applied to school vans that carry 10 or more passengers. He believes that only 10 persons are allowed to be transported in a van, and requests that this number be increased to 12. You inquired into a waiver from this agency that would permit the Oakwood City School District to transport more than 10 school children in a school van.

I appreciate this opportunity to clarify our regulations for school buses. To begin, I would like to emphasize that Federal law does not prohibit schools from carrying more than 10 passengers in a school van. Federal law does, however, affect the sale of buses to schools. Our regulations would permit the sale of new 12-passenger vans to the Oakwood City School District if the seller can ensure that the van meets all applicable motor vehicle safety standards, including the safety standards we issued in 1977 for school buses.

Some background information on this subject may be helpful. Our agency has the authority, under the National Traffic and Motor Vehicle Safety Act of 1966, to issue motor vehicle safety standards for new motor vehicles, including school buses. In 1974, Congress expressly amended the Vehicle Safety Act to direct this agency to issue motor vehicle safety standards on various aspects of school bus performance, such as seating systems, fuel systems, windows and windshields, and emergency exits. The standards we issued became effective April 1, 1977, and apply to each school bus manufactured after that date.

The Vehicle Safety Act requires any person selling a new "school bus" to ensure that the vehicle complies with our school bus safety standards. Under our regulations, a new vehicle designed for carrying 11 or more persons (including the driver) is considered to be a "bus," and is considered to be a "school bus" if sold for school-related purposes. 49 C.F.R. 571.3(b). Thus, new 12-passenger vans sold to the Oakwood City School District are included in our definition of a "school bus," and may be sold to the school district if they meet our school bus safety standards. If any new vehicle does not meet those standards, the seller may be required to recall the vehicle and to pay civil penalties.

Superintendent Raisch suggested that NHTSA grant a waiver permitting manufacturers to sell 12-passenger vans as school buses when those vans do not comply with the school bus safety standards. While section 123 of the Vehicle Safety Act authorizes NHTSA to issue temporary exemptions of motor vehicles from our motor vehicle safety standards, our agency has no general waiver authority. Under @ 123, our authority to grant exemption is limited to certain very specific conditions involving a limited number of vehicles. Therefore, NHTSA has no authority to provide the type of relief your constituent requests.

Mr. Raisch may also be suggesting that we change our definition of a "school bus" to permit the sale of new 12-passenger vans as school buses when those vans do not meet our school bus safety standards. At this time, we have no reason to believe that such a change would be in the interest of school bus safety. Our safety standards for school buses were developed to specify comprehensive requirements for school buses that would reduce the number of school bus fatalities and the severity of injuries. Amending our definition of a "school bus" along the lines suggested by Mr. Raisch would restrict the applicability of our school bus safety standards to a smaller group of vehicles than buses presently subject to those standards. The safety record of school buses since the issuance of our school bus safety standards in April 1977 has been remarkable, and we believe that school vans carrying 10 or more passengers should continue to afford the high levels of passenger protection currently required for school buses.

I hope this information is helpful. Please feel free to contact this agency if you have any further questions.

SINCERELY,

Congress of the United States house of Representatives

September 30, 1985

Honorable Diane Steed Administrator National Highway Traffic Safety Administration

Dear Ms. Steed:

I am enclosing copies of correspondence I received from C. Daniel Raisch, Superintendent of School for Oakwood, Ohio. You will note that Mr. Raisch is seeking a waiver of the number of students which can be transported in school vans. He makes the point that today's vans are built to accommodate twelve individuals.

I would appreciate your review of this suggestion and your comments with respect to the possibility of waivers being permitted.

Tony P. Hall Member of Congress

ENCLS.

September 18, 1985

Rick Carne

Dear Mr. Rick Carne: Earlier this month I discussed with one of the representatives from your Dayton office the issue concerning the minimum number of student passengers permitted transportation in a van before the van must be equipped as a bus.

Currently, the number is ten persons allowed transportation in a van. I am requesting the number be elevated to twelve. This request is based primarily upon the fact that most vans built today are designed to accomodate twelve passengers.

Attached is a document which should aid in your review of the request.

Thank you for your prompt attention to this request.

C. Daniel Raisch Superintendent

U.S. DEPARTMENT OF TRANSPORTATION

NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION

Notice Expires September 1, 1977

SUBJECT: Guidelines for Implementing Highway Safety Program Standard 17, Pupil Transportation Safety

PURPOSE:

To provide new NHTSA information regarding:

a) definition of "school bus;"

b) interpretation of "to and from school;" and,

c) implementation/affect for NHTSA and the various State and local jurisdictions.

BACKGROUND:

1-Definition of "School Bus":

NHTSA regulates the manufacture of school buses under the National Traffic and Motor Vehilce Safety Act of 1966 and the operation of school buses under the Highway Safety Act of 1966. Regulations under these Acts have provided somewhat differing, although not conflicting, definitions of school bus.

Congress, in passing the Motor Vehicle and School Bus Safety Almendments of 1974, defined "school bus" in terms of function rather than design. In line with this undate, all vehicles manufactured on or after April 1, 1977, which are designed for carrying more than 10 persons and which are sold or introduced in (Illegible Word) (Illegible Word) for purposes that include carrying students to and from school or related events, shall be considered school buses. In keeping with the (Illegible Word) of Congress as reflected in the legislative history of the 1974 amendments, these vehicles will be required to be equipped with a system of signal lamps conforming to Federal Motor Vehicle Safety Standard No. 108.

Discussion related to the change may be found in the Federal Register for December 31, 1973, 40 FR 60033 (See Attachment "A") and August 26, 1976, 41 FR 36026 (See Attachment "B").

2 - Interpretation of "to and from school":

In an opinion dated May 5, 1977, the NHTSA's Chief Counsel has ruled that the phrase," to and from school in paragraph III of Highway Safety Program Standard 17, as interpreted in Notice 900, (dated April 11, 1974) is excessively narrow, and that the phrase should include any trip for a school-related event. However, buses in operation prior to April 1, 1977, for use soley in the transportation of students to and from school related events will not be required to meet the requirements of Standard 17. For ease of reference, see:

Attachment "C" Notice 900, Q and A #5, dated April 11, 1974 Attachment "D" Counsel Memo, May 5, 1977.

IMPLEMENTATION/EFFECT:

1 - Definition of "school bus" and identification and marking requirements:

Effective April 1, 1977, the definition of "school bus" in Title 49 of the Code of Federal Regulations (49 CFR @ 571.3) reads as follows:

"School bus" means a bus that is sold or introduced in interstate (Illegible Word), for purposes that include carrying students 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.

The definition for "bus" (49 CFR @ 571.3) will continue to read as follows:

"Bus" means a motor vehicle with motive power, except a trailer, designed for carrying more than 10 persons.

Therefore, the impact on ESPS #17 is as follows:

In addition to all Type I vehicles, this new definition of "school bus" will include many of the van-type vehicles that are classified as Type II school vehicles under ESPS #17. If a Type II van is designed to carry more than 10 persons, and if it is sold for purposes that include "carrying students to and from school or related events," it will have to be sold with all the equipment specified for school buses by the Federal Motor Vehicle Safety Standards. It will, therefore, have to have school bus lights as specified by the Standard on lighting (49 CFR @ 371.108).

Since these vehicles will be equipped with the school bus lighting system, ESPS #17, Section IV.3.5, requires that they comply with two other requirements for identifying school buses; i.e., they must be painted, "National School Bus Glossy Fellow," and be identified format and rear with the words SCHOOL BUS. Of course, vehicles manufactured before April 1, 1977, will not be subject to this new requirement.

2 - Interpretation of "to and from school" Effective May 5, 1977, NHTSA's position is that "to and from school" includes any trip to and from school or school related events.

Previous interpretation/definitions in NHTSA Notices, correspondence, or program manuals/materials are hereby superseded.

Fred W. Vetter

ATTACHMENTS

ID: 1985-04.33

Open

TYPE: INTERPRETATION-NHTSA

DATE: 11/19/85

FROM: AUTHOR UNAVAILABLE; Erika Z. Jones; NHTSA

TO: Mr. Karl-Heinz Faber -- Vice President, Mercedes-Benz of North America, Inc.

TITLE: FMVSS INTERPRETATION

TEXT:

Mr. Karl-Heinz Faber Vice President Mercedes-Benz of North America, Inc. One Mercedes Drive P.O. Box 350 Montvale, New Jersey 07645

Thank you for you letter of August 12, 1985, to Administrator Steed, telling us of your plans to identify Mercedes-Benz vehicles which are equipped with your Supplemental Restraint System. You stated that, beginning with model year 1986, you plan to use the vehicle identification number (VIN) plate location for this purpose. The attachments to your letter depict a VIN plate which indicates whether the vehicle is equipped with an air bag for the driver or for both front seating positions. As long as the requirements of Standard No. 115, Vehicle Identification Number--Basic Requirements, and Part 565, Vehicle Identification Number--Content Requirements, are met, we believe your plan to use the VIN plate location to identify an air-bag equipped car in this manner should be useful. We agree that it should enable service departments, dismantlers, or recyclers to quickly and easily note that a vehicle is equipped with an air bag. Sincerely, Original Signed By Erika Z. Jones Acting Chief Council

ID: 1985-04.34

Open

TYPE: INTERPRETATION-NHTSA

DATE: 11/19/85

FROM: AUTHOR UNAVAILABLE; Erika Z. Jones; NHTSA

TO: The London Coach Co.

TITLE: FMVSS INTERPRETATION

TEXT: Mr. D. F. Landers President The London Coach Co., Inc. 25 Eldredge P.O. Box 1183 Mt. Clemens, MI 48043

Dear Mr. Landers:

This responds to your June 6, 1985 letter concerning Federal Motor Vehicle Safety Standard No. 207, Seating Systems. We apologize for the delay in our response. You asked whether your vehicle's "folding flip seats" are required by section @4.3 of the standard to be equipped with a restraining device. As discussed below, the answer is no.

By the way of background information, this agency does not provide approvals of motor vehicles or motor vehicle equipment. Under the National Traffic and Motor Vehicle Safety Act, it is the responsibility of the manufacturer to ensure that its vehicles or equipment comply with applicable safety standards. The following represents our opinion based on the facts provided in your letter. Section @4.3 of Standard No. 207 states:

...a hinged or folding occupant seat or occupant seat back shall be equipped with a self-locking device for restraining the hinged or folding seat or seat back and control for releasing that restraining device. (Emphasis added.) The term "occupant seat" is defined in section S3 of Standard No. 207 as, "a seat that provides at least one designated seating position." The term "designated seating position" is defined in 49 CFR Part 571.3(b) as:

any plan view location capable of accommodating a person at least as large as a 5th percentile adult female, if the overall seat configuration and design is such that the position is likely to be used as a seating position while the vehicle is in motion, except for the auxiliary seating accommodations such as temporary or folding jump seats.... (Emphasis added.)

The issue raised by your letter is whether your folding flip seats are seats that provide a designated seating position, within the definition of 49 CFR Part 571.3(b). If a seat provides a designated seating position, it is an occupant seat under Standard No. 207 and subject to section @4.3's requirement for a restraining device. It is our opinion that your folding flip seats are "auxiliary seating accommodations" and therefore not subject to the Standard No. 207's requirement for a restraining device. This conclusion is based on the information shown on your brochure. The brochure shows that each of the flip seats normally remains folded up. When they are temporarily needed to accommodate additional passengers, they can be folded down to form a seating surface.

While folding jump seats are not subject to a number of safety requirements, including those of Standards No. 207 and 208, Occupant Crash Protection, we encourage you to ensure that the seats provide safe performance when in use. In particular, we would encourage you to provide safety belts for these seats to ensure that their occupants will have adequate crash protection.

Sincerely,

Erika Z. Jones Chief Counsel

June 6, 1985

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

Dear Sir/Madam:

This letter is our request for interpretive advice on our vehicle, London Taxi and London Sterling, in the area of seating. Brochures are enclosed for your information.

Regulation @4.3 of 49CFR 571.207 requires a self-locking device on all hinged or folding occupant seats. We have gone to a great deal of trouble and research in an effort to locate a suitable self-locking device without success.

Meanwhile, we have noted many vehicles, such as, limousines, ambulances, and fire trucks with folding temporary jump seats without self-locking devices. We further note that in 49CFR 571.3 under the definition of the term, designated seating position, "temporary or folding jump seats" are not regarded as "designated seating positions".

We interpret this latter definition to mean our vehicle folding flip seats do not require self-locking devices. Would you please advise us if our interpretation is correct.

Yours very truly,

D.F. Landers President

DFL/ka

cc: J. Greenebaum A. Turner

enclosure

ID: 1985-04.35

Open

TYPE: INTERPRETATION-NHTSA

DATE: 11/25/85

FROM: AUTHOR UNAVAILABLE; Erika Z. Jones; NHTSA

TO: Mr. John L. O'Connell

TITLE: FMVSS INTERPRETATION

TEXT:

November 25, 1985 Mr. John L. O'Connell Public Transportation Administrator Department of Motor Vehicles State of Connecticut State Street Wethersfield, CT 06109-1896 Dear Mr. O'Connell: This is in reply to your letter of October 8, 1985, to Jeffrey Miller, former Chief Counsel of this agency. You have asked whether a new style school bus warning lamp system developed by the Whelen Engineering Company meets the requirements of Motor Vehicle Safety Standard No. 108 and referenced SAE standards, and whether such a system can be installed and used on school buses in compliance with Federal regulations. Pursuant to paragraph S4.1.4 of Standard No. 108, a school bus must be equipped with a system of red lamps, or red and amber lamps meeting SAE Standard J887 School Bus Red Signal Lamps, July 1964 (copy enclosed). The Whelen system is said to comply with SAE J887 May 1982, with the possible exception of dimensions. The requirements that the Whelen system must meet are those of the 1964 version of J887. Dimensional specifications are not included in the 1964 version, however, the minimum effective projected luminous lens area requirement of 19 square inches must be met. The test report indicates that the Whelen lamp meets the minimum photometrics of both the 1982 and 1964 versions of J887 and its dimensions, 7" x 2.75", indicate that the minimum luminous lens area requirement may also be met. However, the test report indicates that the light flashes at a rate of 55 cycles per minute. The Whelen lamp therefore does not comply with the 1964 requirement that school bus warning lamps flash at a rate of 60-120 cycles per minute (nor the 1982 SAE specifications of 1-2 H which is 60-120 cycles per minute). For this reason, the Whelen system does not meet Federal requirements and cannot be installed on school buses certified as meeting all applicable Federal motor vehicle safety standards. Sincerely, Original Signed By Erika Z. Jones Chief Counsel Enclosure

ID: 1985-04.36

Open

TYPE: INTERPRETATION-NHTSA

DATE: 11/25/85

FROM: AUTHOR UNAVAILABLE; Erika Z. Jones; NHTSA

TO: Richard Pertz

TITLE: FMVSS INTERPRETATION

TEXT:

November 25, 1985 Richard Pertz, Esq. Julian & Pertz, P.C. 1629 Oneida Street Utica, NY 13501 Dear Mr. Pertz: I regret the delay in replying to your letter of July 12, 1985, regarding interpretations of Standard No. 111, Rearview Mirrors. You asked whether the agency has issued any interpretations concerning S5.1.2 of the standard. In addition, you asked whether Ford Motor Company had submitted to the National Highway Traffic Safety Administration (NHTSA) any interpretations of paragraph S5.1.2 of Standard No. 111, regarding requirements for mounting inside rearview mirrors in passenger cars. This agency administers the National Traffic and Motor Vehicle Safety Act of 1966. As part of its responsibilities, this office issues interpretations of safety standards, upon written request. This agency has issued two interpretations of S5.1.2 of Standard No. 111. Copies of these interpretations are enclosed. In addition, NHTSA's Office of Vehicle Safety Compliance investigated the compliance of different makes of passenger cars with Standard No. 111 between 1977 and 1981. The Ford passenger car models tested were the Ford LTD, Econoline, and Fiesta and the Mercury Zephyr and Cougar. As a part of its submission to the agency in these investigations, Ford provided information on its compliance with S5.1.2. The files are available on microfiche from the Technical Reference Office, Room 5108 (202-426-2768) at the address shown above, and the file numbers are CIR Nos. 1708, 2062, 2063, 2064, and 2245. Your request in your letter of September 3, 1985, for comments by Ford on notices of proposed rulemaking on Standard No. 111 has been referred to the Docket Section. They will reply directly to you regarding this information. I hope this information is helpful to you. Sincerely, Original Signed By Erika Z. Jones Chief Counsel Enclosures

ID: 1985-04.37

Open

TYPE: INTERPRETATION-NHTSA

DATE: 11/25/85

FROM: AUTHOR UNAVAILABLE; Erika Z. Jones; NHTSA

TO: P.J. Pennells

TITLE: FMVSS INTERPRETATION

TEXT:

November 25, 1985 P.J. Pennells Pilkington Glass Limited Triplex House Eckersall Road Kings Norton Birmingham ENGLAND B38 8SR Dear Mr. Pennells: Thank you for your letter of October 7, 1985, concerning the application of our glazing regulation to slow moving vehicles, such as agricultural vehicles and earth moving equipment. I hope the following discussion answers your questions. As with all our safety standards, Standard No. 205, Glazing Materials, applies only to vehicles classified as motor vehicles by the National Traffic and Motor Vehicle Safety Act. Section 102(3) of the Vehicle Safety Act defines the term "motor vehicle" as "any vehicle driven or drawn by mechanical power manufactured primarily for use on the public streets, roads, and highways, except any vehicle operated exclusively on a rail or rails. The agency does not consider agricultural vehicles, such as tractors, to be motor vehicles since the legislative history of the Vehicle Safety Act indicates that Congress did not intend to cover those vehicles. Whether construction vehicles, such as earth movers, will be considered motor vehicles depends on their use. For example, construction vehicles intended and sold solely for off-road use are not. I have enclosed a copy of an information sheet prepared by the agency which discusses additional factors we consider in determining whether a vehicle meets the statutory definition of "motor vehicle." We would be glad to give you an opinion as to whether a particular construction vehicle would be classified as a motor vehicle for the purposes of our regulations, if you will provide us with specific information about the design characteristics and use of the vehicle. Since the Occupational Safety and Health Administration in the U.S. Department of Labor has regulations which effect off-road construction vehicles, I have referred a copy of your letter to that agency. I hope this information is of assistance to you. If you have any further questions, please let me know. Sincerely, Original Signed By Erika Z. Jones Chief Counsel Enclosures

ID: 1985-04.38

Open

TYPE: INTERPRETATION-NHTSA

DATE: 11/25/85

FROM: AUTHOR UNAVAILABLE; Erika Z. Jones; NHTSA

TO: Mr. Ron Marion -- Specification Engineer, Thomas Built Buses, Inc.

TITLE: FMVSS INTERPRETATION

TEXT:

Mr. Ron Marion Specification Engineer Thomas Built Buses, Inc. P.O. Box 2450 1408 Courtesy Road High Point, N.C. 27261

This responds to your October 1, 1985 letter to this office asking whether each state has the discretion to determine whether vehicles purchased for Head Start programs should be school buses. While the memorandum you intended to enclose from Commissioner Hodges was excluded from your letter, we are able to answer your questions directly. Your first question asked, "Are Head Start Programs considered schools or school related events for preprimary students?" This agency has consistently stated that a Head Start facility is considered a preprimary school for the purpose of the National Traffic and Motor Vehicle Safety Act. Your second question asked, "Are Head Start Agencies required to provide school buses when transporting 10 or more students?: As you know, the requirements under the Vehicle Safety Act apply to the manufacture and sale of new motor vehicles, and not to motor vehicle use. The Vehicle Safety Act does not require schools to use school buses that comply with our motor vehicle safety standards for school buses. Instead, given that Head Start facilities are "schools" within the meaning of the Vehicle Safety Act, each person selling a new bus (i.e., a motor vehicle designed to carry more than 10 persons) to such a facility is required to sell a bus that complies with NHTSA's school bus safety standards. Your final question asked about state discretion to determine whether Head Start centers must provide complying school buses. The requirements governing the use of a motor vehicle after it is sold is a matter of state law. While NHTSA has issued recommendations to states regarding school bus operation in Highway Safety Program Standard No. 17, Pupil Transportation Safety (copy enclosed), this agency has no requirement that Head Start centers must use complying school buses. On the other hand, the responsibility of school bus sellers to comply with the requirements of the Vehicle Safety Act, and to sell a vehicle that complies with all applicable safety standards, including the school bus safety standards, is a Federal requirement. Accordingly, the states have no discretion to permit persons to sell new buses to Head Start centers if those buses do not comply with the motor vehicle safety standards for school buses. For your future reference, Mr. Tilton is no longer with this agency. If you have further questions, please do not hesitate to contact us. Sincerely, Original Signed By Erika Z. Jones Chief Counsel Enclosure

ID: 1985-04.39

Open

TYPE: INTERPRETATION-NHTSA

DATE: 11/25/85

FROM: AUTHOR UNAVAILABLE; Erika Z. Jones; NHTSA

TO: EPL Incorporated

TITLE: FMVSS INTERPRETATION

TEXT:

Mr. James L. Loden President, EPL Incorporated 200 Campus Drive, RD Pemberton Farms Research Campus Mt. Holly, NJ 08060

Dear Mr. Loden:

Thank you for your July 16, 1985 letter inquiring about the existence of any Federal safety requirements applicable to your projected sale of heated windshield wiper blades. You also asked if Federal testing or research testing or research is being conducted on windshield wiper systems.

Under the National Traffic and Motor Vehicle Safety Act, this agency has issued Federal Motor Vehicle Safety Standard No. 103, Windshield Defrosting and Defogging Systems and No. 104, Windshield Wiping and Washing Systems, which are applicable to new motor vehicles. While these standards do not regulate the heating component of wipers, they do, among other things, require that a defrosting or 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 sets limits on the glare from certain metal 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. Copies of these three standards are enclosed.

If a new vehicle equipped with your blade did not comply with Standard No. 103, 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 or defrosting system to continue to perform as required by Standard No. 103 and No. 104, and would not produce unacceptable glare in the driver's field of view, as prohibited by Standard No. 107.

Copies of the windshield compliance test reports for Standard Nos 103 and 104 are available from the agency's Technical Reference Division. Copies of these reports can be purchased by contacting Mr. Robert A. Hornickle (202-426-2987).

I hope this information is helpful to you.

Sincerely,

Erika Z. Jones Chief Counsel Enclosures

E P L Incorporated 200 Campus Dr. RD 1 Pemberton Farms Research Campus Mt. Holly, NJ 08060

July 16, 1985

Mr. Steven Oesch Office of Chief Counsel National Highway Traffic Safety Administration 400 Seventh Street, S.W. Washington, D.C. 20590

Dear Mr. Oesch:

During a recent conversation, Edward Jetner, Staff Engineer for the Office of Vehicle Safety Standards, suggested I contact you for information on the Federal Motor Vehicle Safety Standards as they apply to a new product we intend to manufacture.

Our company, EPL Incorporated, is starting to manufacture a heated windshield wiper blade. We call it "Thermoblade", and it is designed for use on motor vehicles of all types. Thermoblade is an important safety item as it prevents snow and ice accumulation on the wiper blade and enables it to clean the windshield and provide good visibility for the driver even under the most severe weather conditions.

Is the product we intend to manufacture covered by certain Federal Motor Vehicle Safety standards? Has any Federal testing been done, or are any of our Government's testing laboratories involved in any research and development on windshield wiper systems?

Any information you can give us which will help us launch our new product will be very much appreciated. Should you need more information, please call me at 609-261-6000.

Sincerely,

James L. Loden President

ID: 1985-04.4

Open

TYPE: INTERPRETATION-NHTSA

DATE: 10/25/85

FROM: AUTHOR UNAVAILABLE; Barry Felrice; NHTSA

TO: Karl-Heinz Faber -- Vice President, Product Compliance and Service, Mercedes Benz of North America, Inc.

TITLE: FMVSS INTERPRETATION

TEXT:

Mr. Karl-Heinz Faber Vice President, Product Compliance and Service Mercedes-Benz of North America, Inc. One Mercedes Drive Montvale, NH 07645

I am writing in response to your letters about the headlamp cleaning systems you intend to install on certain 1986 model year vehicles. Your letters provide information about these systems and their performance. My staff has carefully reviewed the information and how it relates to Standard No. 108. "Lamps, Reflective Devices and Associated Equipment."

Our finding is that headlamp cleaning systems as proposed would be governed by paragraphs S4.1.1.36(b)(3), S4.1.3. and S4.3.1.1. The intent of the requirements in these paragraphs is 1) to assure mechanical aimability of the lamp as installed in the vehicle, and 2) to assure that all photometric performance requirements are met with and without installation of auxiliary vehicle parts or accessories, (and if performance degradation must occur, to assure that an auxiliary lighting device is provided). Additionally, the "fail safe" requirements of Standard 112, "Headlamp Concealment Devices" provides a precedent for a requirement that a headlamp should meet all photometric performances requirements, should a wiper fail.

In viewing your company's systems relative to the requirements, it appears possible to design a replaceable bulb headlamp for a specific vehicle application which includes a wiper type headlamp cleaning system, that meets the intent of the law. This could occur if the headlamp system and cleaning system were designed to meet the requirements together: i.e., the photometric performance requirements of FMVSS No. 108 could be met with the wipers in any achievable position and with any standardized replaceable light source. The system would also have to provide for the wiper to accommodate mechanical aiming. The information presented by you appears to show that the design of your system has taken these needs into account. NHTSA would anticipate that any replaceable bulb headlamp system in such an application would be certified by the vehicle manufacturer to meet the performance requirements using a standardized replaceable light source which has minimum lumen output and which has the filament at the maximum out of position tolerance, any replacement headlamp, and any headlamp cleaning system parts. This would be necessary to ensure that the vehicle would remain in compliance when replacement parts are used.

In consideration of the above, NHTSA believes that replaceable bulb headlamp systems with wiper type cleaning systems designed to be compatible and designed to conform to Standard 108 are permissible under the present Standard.

In summary, NHTSA views the use of the wiper type headlamp cleaning system in conjunction with replaceable bulb headlamps as permissible so long as due care is taken to ensure that the systems are designed to conform together, and can remain in compliance in the event of parts replacement.

Sincerely, Associate Administrator for Rulemaking

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