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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 1951 - 1960 of 16515
Interpretations Date

ID: 2662o

Open

Leonard Cain, Director
School Building and Transportation
Mississippi State Department of Education
Suite 306, Sillers Office Building
P.O. Box 771
Jackson, MS 39205-077l

Dear Mr. Cain:

This letter responds to your inquiry of July 30, 1987, in which you pose some questions concerning the applicability of Federal motor vehicle safety standards and Standard 17 to certain vehicles used for transporting school students. I apologize for the delay in this response.

Before I answer your specific questions, I think it might be useful to give you some general information on the Federal role in school bus regulation. The National Highway Traffic Safety Administration (NHTSA) deals with school buses under two different Federal laws: the National Traffic and Motor Vehicle Safety Act of 1966 (Vehicle Safety Act), and the Highway Safety Act.

In 1974, Congress amended the Vehicle Safety Act and directed NHTSA to issue safety standards respecting certain elements of school bus performance, and addressing any person who manufactures or sells a new "school bus." The Federal Motor Vehicle Safety Standards issued under this Act are mandatory Federal standards that apply to school bus manufacturers and sellers. A school bus manufacturer must certify its vehicles as complying with Federal standards that are applicable to school buses. A seller may not sell a vehicle that does not comply with those standards if the seller has reason to know that the buyer intends to use the vehicle as a school bus.

NHTSA defines "school bus" as a motor vehicle designed for carrying 11 or more persons, including a driver, and sold for transporting students to and from school or school-related events. Note that in determining whether a vehicle is a school bus, one must consider both the vehicle's seating capacity, and its intended use.

Under the Highway Safety Act, NHTSA has issued guidelines (23 CFR No. 17, Highway Safety Program Standard) that cover a wide range of subjects relative to school bus identification, operation, and maintenance. Different practices apply to "school vehicles" under the guidelines depending upon whether the vehicle is "Type I" or "Type II." This agency may recommend that an individual State adopt all or part of these guidelines as the State's own policy governing student transportation programs. However, pursuant to the Highway Safety Act, NHTSA does not require compliance with these guidelines. Instead, each individual State decides whether it will adopt some or all of these "Standard 17" guidelines.

Please keep this information in mind as I answer your questions in order. I have assumed in answering your questions that the activities to which you refer are school-related.

Question 1a: Does a vehicle (type 1 bus) purchased by a local public school district for transporting students for only activity purposes have to conform to all Federal Motor Vehicle Safety Standards?

The answer to your question is "yes." However, the agency's regulatory and enforcement authority is directed toward the person manufacturing or selling a school bus. This agency can not regulate purchase or use of a school bus, and consequently can not require a school district to purchase a particular kind of vehicle for transporting students. As noted above, the definition of "school bus" includes vehicles sold for transporting students to and from school-related events. An activity bus is a school bus under this functional definition. Therefore, a manufacturer or seller of a vehicle who has reason to believe that the vehicle's intended use is solely for transporting students to and from school-related activities must ensure its compliance with any Federal safety standard that applies to a school bus.

Question 1b: Does a bus purchased and used solely for activity purposes have to be painted school bus yellow?

School bus color is a matter addressed under the guidelines set out in "Standard 17" discussed above. Accordingly, the answer to your question depends on the laws and regulations of Mississippi. There is no Federal standard requiring that a manufacturer or seller paint a school bus a particular color.

Question 2a: Does a van (designed to carry 11 or more persons) purchased by a local public school district for transporting students for only activity purposes have to conform to all Federal Motor Vehicle Safety Standards?

Recall again that our regulations are directed to school bus manufacturers and sellers. A van designed to carry 11 or more persons, and intended to transport students to and from school-related events is a "school bus" under the agency's definition. Therefore, a manufacturer or seller would have to ensure the vehicle's compliance with any applicable Federal safety standard. To determine whether a local school district may use a noncomplying vehicle it purchases, you must look to state law.

Question 2b: Does a van purchased and used solely for activity purposes have to be painted school bus yellow?

Again, for the reasons set out in my answer to Question 1b, the answer to this question depends on the laws of your State.

I hope you find this information helpful.

Sincerely,

Erika Z. Jones Chief Counsel

ref:57l d:2/23/88

1988

ID: 2662y

Open

Mr. Gerald F. Vinci
Sun Refining and Marketing Company
Tenn Penn Center
1801 Market St.
Philadelphia, PA 19103-1699

Dear Mr. Vinci:

This responds to your August 14, 1990 letter and telephone calls about your plans to convert the fuel system on a vehicle from gasoline to propane. You said your company ("Sun Refining") would like to purchase a new vehicle and convert it for purposes of your own research, and will not be reselling the vehicle. You ask about the requirements that would apply to the conversion.

We do not have any requirements that would apply to the conversion if the conversion is made by Sun itself. The National Traffic and Motor Vehicle Safety Act and NHTSA's regulations generally do not apply to a vehicle after the vehicle is sold to a consumer (e.g., Sun) for purposes other than resale. Although the Act prohibits certain entities from tampering with or removing federally required safety features, the prohibition does not apply to modifications by a vehicle owner to his or her own vehicle.

However, in the event you have the conversion done by a party other than your company, Federal law may apply. Section 108(a)(2)(A) of the Safety Act prohibits vehicle manufacturers, distributors, dealers and repair businesses from knowingly rendering inoperative federally required safety features when modifying a vehicle. I have enclosed an information sheet that discusses the application of 108(a)(2)(A) to fuel system conversions.

NHTSA wishes to learn more about the safety of propane fuel systems and is considering a public announcement seeking information on various safety issues. We would, therefore, be interested in the results of your research when they're completed.

Even though your conversion would not be covered by the FMVSS's, we suggest you consult State law to see if the State has requirements for propane vehicles. In addition, other Federal agencies may have regulations for your vehicle. If your vehicle would be a commercial vehicle, the regulations of the Federal Highway Administration (FHWA) may apply. I have forwarded a copy of your letter to FHWA for their reply. You might also contact the Environmental Protection Agency (EPA) for information about the conversion. EPA's general telephone number is (202) 382-2090.

I hope this information is helpful. Please contact us if you have further questions.

Sincerely,

Paul Jackson Rice Chief Counsel

Enclosure /ref:301#VSA d:9/l7/90

1970

ID: 2663o

Open

Mr. Jay Costa
Assistant Procurement Specialist
Municipality of Metropolitan Seattle
Exchange Bldg., 821 Second Ave.
Seattle, Washington 98104

Dear Mr. Costa:

I am responding to your letter seeking an interpretation of Standard 217, Bus Window Retention and Release (49 CFR /571.217). Specifically, you expressed concern that some transit system passengers are opening the rear emergency exits on your public transit vehicles. Apparently, some passengers open these emergency exits to commit acts of vandalism. You state that "in the interest of safety the rear emergency window (in these vehicles) should be removed and replaced with a non-operable type window." You asked whether Standard 217 would prohibit your body shop from modifying your transit buses in this manner.

Assuming that your body shop does not hold itself out to the public as a business that repairs motor vehicles for compensation, the shop would not be prohibited from modifying the buses as you describe.

Under paragraph S5.2.1 of Standard 217, buses that have a gross vehicle weight rating of 10,000 pounds or more (such as your transit buses) must have at least one rear emergency exit, unless the configuration of the bus precludes installing an accessible rear exit. The manufacturer of your buses has stated that the bus configuration does not preclude installing an accessible rear exit. Therefore, your manufacturer must deliver buses that are equipped with a rear emergency exit.

On the other hand, your repair shop is subject to different considerations. Section 108(a)(2)(A) of the National Traffic and Motor Vehicle Safety Act (15 U.S.C. 1397(a)(2)(A)) prohibits certain commercial establishments from "rendering inoperative" any device or element of design included on or in a vehicle in compliance with an applicable safety standard. In your example, the rear emergency exit is an element of design included in the buses in compliance with an applicable safety standard, and removing these exits would render inoperative that element of design.

However, the "render inoperative" prohibition applies only to manufacturers, distributors, dealers, or motor vehicle repair businesses. A "motor vehicle repair business" is defined in /108(a)(2)(A) as "any person who holds himself out to the public as in the business of repairing motor vehicles or motor vehicle equipment for compensation." Please note that the "render inoperative" provision does not apply to a vehicle owner. The vehicle owner may modify his or her vehicle without violating any Federal requirements, irrespective of whether the modification affects the vehicle's compliance with a safety standard.

Assuming that your transit system body shop does not hold itself out to the public as being in the business of repairing motor vehicles for compensation, it can make the modification you describe without violating any Federal requirements.

The problem you describe apparently involves the design for releasing the kind of emergency window exit in your vehicles. Standard 217 does not require a specific design for releasing an emergency exit. Rather, the Standard sets out a ceiling for the magnitude of force necessary to release the exit, and a required direction for applying the release force. The transit system could replace the "operable" rear emergency window with a push-out window or other type of design that would still meet the release requirements of Standard 217, yet make it difficult or impossible for a passenger to commit the acts of vandalism you describe.

Please note that the purpose of our emergency exit requirements for buses is to facilitate quick and safe rider exit in the event of an emergency. Though nothing prohibits you from modifying the vehicles to close off the rear emergency exit, I urge you to give your fullest consideration to the implications of making this modification. It is NHTSA's position that compliance with Standard 217 is the safest way to facilitate vehicle exit in an emergency, and it is my opinion that you needn't eliminate the rear window exit to resolve your problem. Further, you might want to check with the State of Washington to learn if it prohibits modifications that would make your transit buses no longer comply with Standard 217.

I hope you find this information helpful.

Sincerely,

Erika Z. Jones Chief Counsel ref:VSA#217 d:2/23/88

1988

ID: 2663y

Open

Samson Helfgott, Esq.
Helfgott & Karas, P.C.
60th Floor
Empire State Building
New York, NY l0ll8-0ll0

Dear Mr. Helfgott:

This is in reply to your letter of June ll, l990 (Your file CAIN 8877), with respect to the permissibility under Standard No. l08 of the use of amber lamps on the rear of motor vehicles.

You have referenced our letter to you of March 30, l989, on the use of a single amber lamp adjacent to, but separate from, the center highmounted stop lamp. Your client wishes to utilize the amber center lamp in conjunction with rear amber turn signal lamps to provide an amber triangular array on the rear. The array would be activated when the ignition is turned on, and remain activated except when the stop lamps were activated (which, with the red center lamp, provide a red triangular array). With respect to the triangular amber lamp array you have asked the following four questions:

"l. The possibility of utilizing the amber turn signals as tail lights, instead of the red tail lamps. This is the same as is now in effect on the front of all vehicles."

Standard No. l08 requires that the color of taillamps be red. Therefore amber turn signal lamps could not serve as substitutes for taillamps. Your comment about frontal lighting is not exactly in point. A turn signal lamp may be combined with a parking lamp (provided the requirements for each are met) but Standard No. l08 requires that both be amber in color.

"2. The possibility of supplementing existing tail lamps with the presence of the amber lamps."

We do not regard this as a true supplement because the color of the array differs from that of the taillamps required by Standard No. l08. However, like taillamps, the array is intended to indicate the presence of a vehicle. The question is, whether an array of three amber lamps would impair the effectiveness of the required two red taillamps. As we advised in our letter of March 30, l989, additional lighting equipment is permissible as long as it does not impair the effectiveness of the lighting equipment that the standard requires. We cautioned that you should consider whether steady-burning amber lamps might confuse following drivers, who would probably be unused to seeing steady burning amber lamps on the rear of a vehicle. Because you have not informed us as to the intended candela of the array, we cannot advise with any assurance whether the amber array would impair the effectiveness of the required red taillamps. Certainly if the candela of the triple amber arrray exceeded that of the red taillamps a basis would appear to exist for a judgment of impairment.

"3. The possibility of using the amber lamps as daytime running lamps on the rear of a vehicle."

Under this scenario, the amber array would function as daytime presence lamps, a function not provided by any rear lighting system required by Standard No. l08. The question therefore is whether such a system would impair the effectiveness of the signal lamps required by Standard No. l08. These are hazard warning signals, turn signals, and stop lamps.

With respect to the hazard warning signals, these operate through the turn signal lamps, and, although operable when the vehicle is in motion, they are designed to operate when the ignition is not on (i.e., when the triple array would be deactivated). Therefore, we do not believe that the triple array would impair the effectiveness of the hazard warning signals.

As for impairment of the turn signals, we must distinguish between those that are amber and those that are red. Again, we raise the possibility that confusion could exist if the candela of the triple array exceeds that of an amber turn signal system. It is imperative that following drivers understand without hesitation the signals provided by other vehicles in front of them. Confusion may be less likely to exist if the required signal lamp and the triple array differ in color.

Concerning the stop lamps, you have informed us that the triple array is deactivated when the stop lamps come on. In this event, there would be appear to be no impairment of the stop signals.

"4. The possibility of utilizing the 'amber triangular array' as described above."

In our view, no specific Federal rulemaking appears required for your client to offer its system for installation on motor vehicles, subject to the constraints expressed in this letter and the letter of March 30, l989. As the earlier letter explains, the determination of whether there is impairment is initially made by a manufacturer who wishes to offer the system as new vehicle equipment. In the aftermarket, installation of the system must not, in effect, result in impairment of required lighting equipment, but nevertheless the system is subject to State and local lighting laws. We have forwarded a copy of your letter and our response to the agency's Office of Research and Development for their information. We appreciate your client's interest in motor vehicle safety.

Sincerely,

Paul Jackson Rice Chief Counsel

ref:l08 d:9/l7/90

1970

ID: 2664o

Open

Captain Robert W. Barthelmess
Box 5744
APO, NY 09633

Dear Captain Barthelmess:

This is in reply to your letter of December 30, 1987, to this agency with respect to the requirements for importing tires without the DOT symbol.

You have asked whether the DOT symbol must still appear on the tires of vehicles that conform to the U.S. Federal motor vehicle safety standards. The answer is yes; there has been no change in the requirement that the DOT symbol appear on the sidewall of tires manufactured as either original or replacement equipment. The DOT is the manufacturer's certification of compliance with all applicable Federal motor vehicle safety standards. In your letter, you stated that one individual at the Army Air Force Exchange Service indicated that the DOT symbol had been replaced by a series of numbers. This individual may have confused the requirement for the DOT symbol with a different Federal requirement for an identification number to appear on tires. The tire identification number, among other things, assists in the tracing and recalling of tires which may prove to be noncomplying or defective. The requirement for the tire identification number is in addition to, not in place of, the requirement for the DOT symbol.

You have also asked (with reference to service personnel like yourself who recently bought non-DOT marked tires for your U.S. type automobiles) whether there is a technical possibility of denial of entry to vehicles certified as meeting U.S. safety specification but equipped with tires not bearing the DOT symbol. The general procedure is that when a motor vehicle arrives at the port of entry it will be inspected to see whether it bears the manufacturer's certification of compliance (generally in the driver's door post area). We do not know whether Customs makes it a practice to inspect vehicles of U.S. origin for this certificate when a serviceman is returning to the States. If an inspection occurs and the vehicle bears the certification, the vehicle is admitted without further inspection. It is possible, of course, that a Customs inspector could happen to notice in passing the lack of the DOT symbol on the tires. In this instance, as the vehicle would not be in conformity with all applicable standards, the Customs inspector could require entry of the vehicle under bond, which would be released upon the importer's production of a statement to this agency that the noncompliance had been corrected. Although we are not aware of any instance in which this has actually happened, you may wish to contact Customs with respect to its inspection procedures. You may also wish to write Goodyear asking for a statement that the Vector tires comply with Standard No. 109, which could be presented to Customs should questions arise.

I hope that this answers your questions.

Sincerely,

Erika Z. Jones Chief Counsel ref:MIS d:2/24/88

1988

ID: 2664y

Open

Mr. A. Roger Hirstein
Industry Development Center
3M Commercial Graphics Div.
3M Center, BUilding 220-6W-06
St. Paul, MN 55144-1000

Dear Mr. Hirstein:

This is in reply to your letter of June 1, l990, to Taylor Vinson of this Office. One of your customers has asked whether 3M's Diamond Grade Reflective Sheeting can be used in a red and white block pattern on the side of a trailer for conspicuity without violating Standard No. l08. Your interpretation is that the Sheeting can be used in addition to devices meeting the requirements of Standard No. l08 but not in place of them.

You are essentially correct. However, because we do not know both the pattern and location of the design, whether "side" includes the front and rear of a trailer, the reflective qualities of your sheeting, who will apply the sheeting, and whether the application will occur before or after delivery of the trailer to its purchaser, we can only provide general guidelines.

Under S5.1.3 of Standard No. l08, supplementary reflective devices, i.e., devices other than those required by the standard, may be installed and present on vehicles at the time of their first sale as long as they do not impair the effectiveness of lamps and reflectors required by the standard. The initial determination of whether there is impairment is to be made by the manufacturer who certifies that the vehicle complies with all applicable Federal motor vehicle safety standards. If that decision appears incorrect to the agency, NHTSA will advise accordingly.

After the initial sale, the supplementary reflective devices may be installed by a manufacturer, dealer, distributor, or motor vehicle repair business subject to the limitation in section 108(a)(2)(A) of the National Traffic and Motor Vehicle Safety Act that such installation not "render inoperative in whole or in part" any of the lighting equipment required by Standard No. l08. There is no statutory prohibition under the Act against owner modifications, even if they involve impairing or removing devices required by Standard No. l08. However, the trailer would still remain subject to the laws of the individual States in which the trailer is registered and operated, and (if applicable), to the regulations of the Office of Motor Carrier Standards of the Federal Highway Administration.

Sincerely,

Paul Jackson Rice Chief Counsel

/ ref:l08 d:9/l4/90

1970

ID: 2665o

Open

The Honorable Charles Wilson
House of Representatives
Washington, D.C. 20515

Dear Mr. Wilson:

This is in response to your letter of December 9, 1987, to Ms. Brenda Brown, Office of Congressional Affairs, Department of Transportation, which has been forwarded to this Office for reply. Unfortunately, the Department has no record of receiving your previous letter of August 19, 1987.

You have written on behalf of your constituent Mr. W. P. Brandon of Palestine who has designed a "Wide Right Turn" signal for installation on the rear of trailers. The device consists of the words "Wide Right Turn" and an arrow, in black on a "caution yellow" background. The device is attached to the lower right rear of a trailer, and flashes when the turn indicator is positioned for a right turn. Mr. Brandon asks three questions with respect to his device, which I shall answer shortly.

Preliminarily let me note that the applicable Federal law and regulation are, respectively, the National Traffic and Motor Vehicle Safety Act of l966, and Federal Motor Vehicle Safety Standard No. l08 Lamps, Reflective Devices, and Associated Equipment. Standard No. l08 permits a supplementary lighting device such as Mr. Brandon's as original trailer equipment if it does not impair the effectiveness of the lighting equipment that Standard No. 108 requires, such as the standard turn signal system. The Vehicle Safety Act permits it as aftermarket trailer equipment if its installation by a person other than the trailer owner does not render inoperative, wholly or in part, equipment installed on the trailer pursuant to Standard No. l08 or any other safety standard.

With these general remarks in mind, we reach the three questions that Mr. Brandon asked.

"l. Is there any rule regarding the placement of a flashing 'Wide Right Turn' signal on the lower right rear of a trailer?"

The answer is no, as long as there is no impairment of the effectiveness of the other rear lamps (i.e., the standard turn signal must continue to operate when the lever is in the position indicating a right turn, but the wide turn signal should not operate when the hazard warning signals (which operate through the turn signal lamps) are on). "2. Can the signal be black letters on a safety yellow background or should it be another color"?

The agency does not prescribe the color of supplementary lighting devices, and color is subject only to the "impairment" restriction. Required lighting equipment on the rear of trailers may be white (back up lamps), amber (turn signals), or red (the alternative color for turn signals, and the required color for taillamps and stop lamps). I am unsure what "safety yellow" is, but it would not appear to impair the effectiveness of the red, amber, or white lamps on the trailer's rear.

"3. Are there any restrictions on manufacturing of the signal insofar as materials or construction are concerned?"

There are no Federal restrictions or requirements. However, supplementary lighting devices such as Mr. Brandon's are subject to regulation in all their aspects by the States in which they will be sold and used. We are not conversant with State regulations on this subject, and suggest that, for further advice, Mr. Brandon contact the American Association of Motor Vehicle Administrators, 120l Connecticut Ave., N.W., Washington, D.C. 20036.

We appreciate Mr. Brandon's interest in safety, and your writing us with respect to his "Wide Turn Signal" device.

Sincerely,

Erika Z. Jones Chief Counsel

ref:l08 d:2/19/88

1988

ID: 20014.ztv

Open

Mr. Joel Sacher
Director of Product Development
Italjet U.S.A.
302 Spring Street
New York NY 10013

Dear Mr. Sacher:

We have received your letter of May 11, 1999, asking for a temporary exemption for "a small number of Italjet scooters" from one requirement of Federal Motor Vehicle Safety Standard No. 123 Motorcycle Controls and Displays.

I am sorry to inform you that the petition does not meet our procedural requirements, and we request that you revise and resubmit it in accordance with the following comments. Our regulation, 49 CFR 555.5(b)(3), requires that a petition

state the full name and address of the applicant,

the nature of its organization (individual, partnership, corporation, etc.) and the name of the State or country under the laws of which it is organized.

Italjet U.S.A. appears to be petitioning on behalf of Italjet S.p.A. If our assumption is correct, please provide the identifying information for Italjet S.p.A. that the regulation requires. If Italjet U.S.A. is a wholly-owned subsidiary of Italjet S.p.A., we ask that you confirm this as well. If Italjet U.S.A. is not a wholly-owned subsidiary of Italjet S.p.A., we would like to have a copy of the authorization from Italjet S.p.A. to you to petition on its behalf.

In order that any possible exemption be limited in scope, please inform us of the model name or number of the vehicle for which you are requesting exemption.

Finally, we call your attention to 49 CFR 555.5(b)(2) which requires that temporary exemption petitions be filed in three copies; we received only one copy.

When we have this information, we shall be pleased to consider your request.

Sincerely,
Frank Seales, Jr.
Chief Counsel
ref:555
d.6/3/99

1999

ID: 20032.drn

Open

Mr. Kevin Nugent
Fleet Sales Manager
Liberty Chevrolet
90 Bay State Road
Wakefield, MA 01880

Dear Mr. Nugent:

This responds to your request for an interpretation whether you may lease a new1999 Chevrolet 12-Passenger Express Van (Model CG1406) to a local school district, when you have a letter indicating that the "primary purpose" of the van would be for "adult education students." Under the available facts, the answer is no. If you decide to sell or lease a new bus to the school district, you must sell or lease only a bus that meets the National Highway Traffic Safety Administration's (NHTSA's) school bus standards.

By way of background, NHTSA has the authority, under 49 U.S.C. 30101 et seq. (Chapter 301 or the Act) to regulate the manufacture and sale or lease of new motor vehicles. In 1974, Congress directed NHTSA to issue motor vehicle safety standards on specific aspects of school bus safety and apply those standards to all "school buses." The school bus standards we issued became effective April 1, 1977, and apply to each school bus manufactured on or after that date.

The Act at 49 U.S.C.30112 requires any person selling or leasing a new vehicle to sell or lease a vehicle that meets all applicable standards. Accordingly, persons selling or leasing a new "school bus" must sell or lease a vehicle that meets the safety standards applicable to school buses. Our statute defines a "schoolbus" as any vehicle that is designed for carrying a driver and more than 10 passengers and which, NHTSA decides, is likely to be "used significantly" to transport "preprimary, primary, and secondary" students to or from school or related events. 49 U.S.C. 30125. By regulation, the capacity threshold for school buses corresponds to that of buses - vehicles designed for carrying more than ten (10) persons. For example, a 12-person van that is likely to be used significantly to transport students is a "school bus."

If a new large (11 persons or more capacity) van were sold or leased to a school district and used on a regular or long-term basis to transport students, the vehicle must meet NHTSA's school bus standards. However, a one-time or very occasional rental would be permitted, on the grounds that the vehicle would not be used significantly to transport children to and from school and thus would not be a school bus.

You enclose a letter from Mr. David W. Pottle, Adult Education Co-ordinator of the Southern Berkshire Regional School District (in Sheffield, Massachusetts) that states that the "primary purpose" for the 12-passenger van lease would be for "transportation of adult education students." Although the primary purpose of the bus may be for adult education, the letter implies that the bus would have a substantial collateral use. The statement that the "primary purpose" is for the transportation of adult education students is not sufficient. For example, if the vehicle were used 51 percent of the time to transport adults and 49 percent of the time to transport students, it would still be a school bus required to meet our school bus safety standards.

For more information about the safety features of a school bus, I am enclosing NHTSA's publication: "School Bus Safety: Safe Passage for America's Children." If you have any further questions please feel free to contact Dorothy Nakama at this address or at (202) 366-2992.

Sincerely,
Frank Seales, Jr.
Chief Counsel
Enclosure
ref:VSA#571.3
d.11/16/99

1999

ID: 20040a.nhf

Open

Ms. Heidi Lynn Wood
8448 Grimm Lane
Cato, WI 54230

Dear Ms. Wood:

This responds to your letter requesting permission to replace the original steering wheel and column in a 1998 or 1999 Dodge Caravan with a smaller steering column and reduced diameter steering wheel. I apologize for the delay in my response. You explain that you need the new steering wheel and column to accommodate your condition, osteogenesis imperfecta. You enclosed a letter from your doctor and an evaluation from a certified driver rehabilitation specialist who recommended replacing the original equipment manufacturer's (OEM) steering wheel and column with a reduced diameter steering wheel to accommodate your limited range of motion.

This letter provides the relief you seek. We will not institute enforcement proceedings against a commercial entity that modifies the steering wheel and column on a vehicle to accommodate your condition.

We would like to begin by explaining that the National Highway Traffic Safety Administration (NHTSA) is authorized to issue Federal motor vehicle safety standards 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 the products can be offered for sale. After the first sale of a 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. In general, the "make inoperative" prohibition (49 U.S.C. 30122) 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. Violations of this prohibition are punishable by civil penalties of up to $1,100 per violation.

There is no procedure by which businesses petition for and are granted permission from NHTSA to modify a motor vehicle. Businesses are permitted to modify vehicles without obtaining permission from NHTSA to do so, but are subject to the make inoperative provision of 49 U.S.C. 30122. In certain limited situations, we have exercised our discretion in enforcing our requirements to provide some allowances to a business which cannot conform to our requirements when making modifications to accommodate the special needs of persons with disabilities.

Removing the original steering wheel and column and replacing them with a smaller wheel and column could affect compliance with seven standards: Standard No. 101, Controls and displays, Standard No. 124, Accelerator control systems, Standard No. 203, Impact protection for the driver from the steering control system, Standard No. 204, Steering control rearward displacement, Standard No. 207, Seating systems, Standard No. 208, Occupant Crash Protection, and Standard No. 209, Seat belt assemblies. For example, Standard No. 208, Occupant Crash Protection, requires vehicles to be equipped with specific manual and automatic restraint systems (e.g., seat belts and air bags) and to meet specified injury criteria during a test. Removing the air bag would affect the vehicle's compliance with Standard No. 208. However, as noted above, in situations such as yours where a vehicle must be modified to accommodate the needs of a particular disability, we have been willing to consider violations of the "make inoperative" prohibition to be justified by public need. Accordingly, NHTSA will not institute enforcement proceedings against a business that modifies the steering wheel and air bag to accommodate your condition.

We caution, however, that only necessary modifications should be made. In addition, the person performing the modifications should consult with the vehicle manufacturer to determine how to disarm the air bag. The manufacturer should be able to provide information on how the modification can be safely performed.

We are enclosing a warning label stating that the air bag has been deactivated. For the safety of everyone who may ride in the vehicle, we ask that you affix this label on the sun visor above the deactivated air bag. We encourage you to always use the vehicle's safety belts or other belt-type restraint appropriate for your disability. Finally, if you sell the vehicle, we urge you to advise the purchaser that the vehicle has been modified, and consider reinstalling the removed safety equipment if appropriate.

You may be interested to know that the agency is working on a rulemaking to regulate the aftermarket modification of vehicles for persons with disabilities by setting out exemptions from the make inoperative prohibition only for certain standards, including Standard No. 208, and under certain conditions. In place of the agency's current approach where each request for exemption from the make inoperative prohibition is reviewed case-by-case, this rulemaking would give clear guidance to modifiers about principles to follow when considering vehicle modifications to accommodate someone's disabilities.

You should show this letter to the dealer or repair business when you take your vehicle in to be modified. If you have other questions or require additional information, please contact Nicole Fradette of my staff at this address or by phone at (202) 366-2992.

Sincerely,
Frank Seales, Jr.
Chief Counsel
Enclosure
Warning Label
ref:VSA
d.10/14/99

1999

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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