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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.”

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NHTSA's Interpretation Files Search



Displaying 2671 - 2680 of 16490
Interpretations Date

ID: aiam3500

Open
Mr. G. R. Dufresne, Assistant Vice President, Textile Services Division, United States Testing Company, Inc., 14415 Park Avenue, Hoboken, NJ 07030; Mr. G. R. Dufresne
Assistant Vice President
Textile Services Division
United States Testing Company
Inc.
14415 Park Avenue
Hoboken
NJ 07030;

Dear Mr. Dufresne: This responds to your July 24, 1981, letter directed to our Office o Enforcement in which you ask whether it would be permissible to test for compliance with Standard No. 302, *Flammability of Interior Materials*, in a manner different than that prescribed in the standard. The standard states that a 14-inch long section of material shall be burned in a test oven until the flame reaches within 1 1/2 inches from the end of the material. You state that for some fabrics this requires a test that can extend to 10 minutes. In a test of this length, the test oven can cause the glass front of the oven to break. You suggest that the test be discontinued after five minutes, and the burn rate calculated.; The test requirements of the standard are provided to show how th agency will test for compliance. However, it is not compulsory that a manufacturer adhere to every facet of the test procedures if it can satisfy itself that its product will comply with the standard by testing in another manner. As you know, the standard requires only that the burn rate of a material not exceed four inches per minutes. A 14-inch long section of material that has not burned completely to its end in five minutes obviously would not exceed the 4-inch per minutes burn rate. Accordingly, we do not see any reason that you could not terminate the test five minutes after the starting point specified in paragraph S5.3(e) of the standard.; Sincerely, Frank Berndt, Chief Counsel

ID: nht80-2.48

Open

DATE: 06/09/80

FROM: AUTHOR UNAVAILABLE; Frank Berndt; NHTSA

TO: Honorable John P. Murtha, House of Representatives

TITLE: FMVSS INTERPRETATION

TEXT: This responds to your recent request for information on behalf of your constituent, Mr. Steve Zufall. Mr. Zufall is interested in the specifications applicable to the manufacture of propane tanks to be used in the conversion of gasoline-powered vehicles. He asked how to obtain "numbers" to be listed on the tanks and mentioned the designation "4VA-240", which someone had discussed with him.

The enclosed discussion sets forth the implications under Federal law of converting gasoline-powered vehicles to use propane, as well as a general discussion of auxiliary fuel tanks. The applicable statutory authority is the National Traffic and Motor Vehicle Safety Act, as amended 1974 (15 U.S.C. 1381, et seq.). The discussion first looks at the Federal Motor Vehicle Safety Standard (FMVSS) applicable to fuel systems and then at the defect responsibilities that might be involved. Next, a brief mention is made of the possibility of product liability suits.

There are no requirements under the Federal motor vehicle safety regulations that specify "numbers" which must be stamped on propane gas tanks. The designation mentioned by Mr. Zufall, "4VA-240", is actually "4BA-240" and refers to specifications under the Bureau of Motor Carrier Safety regulations relating to fuel systems on commercial vehicles or to tanks used for shipment of propane gas in interstate commerce. These regulations would not apply, however, to tanks or fuel systems on private vehicles. For further information regarding these regulations, Mr. Zufall should contact Mr. W. R. Fiste of the Bureau of Motor Carrier Safety (202-426-0033).

ENC.

MOTOR VEHICLE SAFETY

The Federal Implications of Installing Auxiliary Fuel Tanks and Of Converting Fuel Systems to Use Alternate Fuels

Before getting into the legalities of these installations and conversions, I want to stress my concern about the danger which these practices may pose to the occupants of vehicles with are altered and even to occupants of other vehicles. These practices may seriously increase the risk of fire if these altered vehicles are involved in accidents. Even where there are no legal liabilities, this threat to safety may be present.

The Act authorizes the National Highway Traffic Safety Administration (NHTSA) to issue FMVSS's applicable either to entire vehicles or to equipment for installation in vehicles. The only standard relevant to this discussion, FMVSS 301-75, is a vehicle standard. It applies to vehicles which use fuel with a boiling point above 32 degrees I. and which are (1) passenger cars, or (2) multipurpose passenger vehicles, trucks, or buses with a gross vehicle weight rating (GVWR) of 10,000 pounds or less or (3) schoolbuses with a GVWR greater than 10,000 pounds. If the need were found, a standard could also be issued for fuel systems designed for installation in new or used vehicles.

Under section 108(a)(1)(A) and (A)(1) of the Act, new Motor vehicles must comply with the FMVSS's applicable to them until they are first purchased by someone for purposes other than resale. That purchase is completed when the vehicle is delivered to the ultimate consumer. The NHTSA regulations include two measures designed to ensure compliance with applicable FMVSS's until this delivery. First, manufacturers of new vehicles are required to affix to each vehicle they produce a label which certifies the vehicle's compliance with all applicable FMVSS's. In addition, any person who prior to the first sale, alters a certified vehicle in a manner that significantly affects either its configuration or purpose is considered to be not only an alterer but also a manufacturer and therefore, must recertify the entire vehicle as complying with all applicable FMVSS's. (49 CFR 567.7 and Preamble to 37 F.P. 22800, October 25, 1972). The only alterations that a person may make prior to the first sale of a vehicle without being considered a manufacturer subject to the recertification requirements are minor finishing operations or the addition, substitution or removal of readily attachable components such as mirrors, tires, or rim assemblies. (49 CFR 567.7).

Should a noncompliance be discovered in a recertified vehicle, as a result of an alterer's modification, the alterer would be liable for a civil penalty unless he or she could establish that he or she did not have actual knowledge of the noncompliance, and that he or she did not have reason to know in the exercise of due care that the vehicle did not comply. (Section 108(b)(2) of the Act). The civil penalty imposed could be up to $ 1000 for each violation of an applicable FMVSS. (Section 109 of the Act).

With respect to FMVSS 301, the effect of the alterer provisions is that not only must the original gasoline fuel system meet the performance requirements encompassed by the standard but that any auxiliary or replacement tank added by an alterer must meet them also.

If the alterer converts the gasoline fuel system to a propane fuel system, the vehicle must still be recertified. However, FMVSS 301-75 would cease to be a factor since the standard would no longer apply to the vehicle. Propane has a boiling point below 32 degrees F. and FMVSS 301-75 applies only to vehicles using fuel with a higher boiling point. Finally, if the alterer converts a gasoline-powered vehicle so that it is both gasoline-powered and propane-powered, he must recertify the entire vehicle as complying with all applicable standards, including FMVSS 301-75.

After the first purchase of a vehicle for purposes other than resale, tampering with the vehicle is limited by section 108(a)(2)(A). That section in essence prohibits the entities and persons listed below from knowingly removing, disconnecting or reducing performance of equipment or elements of design installed on a vehicle in accordance with applicable FMVSS's. There is no prohibition against an individual person modifying his or her own vehicle. Specifically, the section provides:

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 . . .

A person or entity found to have violated this section would be liable for a civil penalty of up to $ 1000 for each violation. (Section 109 of the Act).

If a tamperer adds an auxiliary gasoline tank to a vehicle manufactured in accordance with FMVSS 361-75, and in the process knowingly reduces the performance of the fuel system originally installed in the motor vehicle, he or she has violated section 108(a)(2)(A). (N.P. No. 1191, 93d Cong., 2d Sess. 34 (1974). Such reduction of performance could occur, for example, if gasoline from the original system (a fuel system includes the filler pipe, tank, gasoline lines, fuel pump, carburetor, and engine) could be leaked through a rupture in the auxiliary tank and fuel lines, and if the design, materials, construction, installation or location of the auxiliary tank and fuel lines made them more susceptible to rupture than the original fuel system.

If a tamperer removes the original gasoline tank and installs a replacement one, section 108(a)(2)(A) is violated unless the performance (as defined by FMVSS 301-75) of the replacement tank equals or exceeds the performance of the original tank. To determine the relative performance of the replacement tank, a number of issues would have to be examined, including the quality of the replacement tank, the connection of the tank with the filler pipe and fuel lines to the fuel pump, and the location of the tank with respect to surrounding vehicle structures. For example, if unlike the original tank, the replacement tank were sufficiently near surrounding vehicle structures so that those structures might be pushed against or into the replacement tank and cause a rupture in a collision, the performance of the fuel system would have been impermissibly reduced.

There is no liability under section 108(a)(2)(A) in connection with FMVSS 301-75 if the tamperer converts a used gasoline-powered vehicle into a propane-powered vehicle. Modifying safety systems of a vehicle being converted from one vehicle type to another would not violate section 108(a)(2)(A) so long as the modified systems complied with the FMVSS's that would have been applicable to the vehicle had it been originally manufactured as the vehicle type to which it is being converted. For example, in converting a 1978 gasoline-powered car to a propane-powered car, the converter would not be covered by FMVSS 301-75 since that standard did not apply to 1978 propane-powered cars.

The case of a tamperer who modifies a used gasoline-powered vehicle so that it has a dual gasoline/propane system would be essentially the same as that of the person who adds an auxiliary gasoline tank. If the tamperer knowingly reduces the performance of the gasoline system in adding the propane system, he or she has violated section 108(a)(2)(A).

As to safety defect responsibilities under sections 151 et seq. of the Act, persons who alter new vehicles by installing auxiliary or replacement gas tanks or by converting a gasoline fuel system to a propane fuel system as well persons who produce the equipment being installed are fully subject to those responsibilities. Sections 151 et seq. provide that manufacturers of motor vehicles and motor vehicle equipment must notify owners of vehicles and equipment with safety-related defects and remedy those defects free of charge. As explained earlier the term "manufacturer" includes persons who alter new vehicles by doing more than simply adding, substituting, or removing readily attachable components or performing minor finishing operations. Since alterations involving installation of auxiliary replacement gas tanks or conversion of gasoline systems to propane systems are more substantial, persons who make those alterations are manufacturers.

Thus the alterer who installs auxiliary or replacement tanks or makes propane conversions is responsible for safety defects in the installation of the tanks and propane systems. Installation defects include defects in the method and location of installation.

Under 49 CFR Part 579, the auxiliary and replacement tanks and the propane systems would all be treated as "replacements equipment." Part 579 places the responsibility for safety defects in the performance, construction components, or materials, of replacement equipment on the manufacturer of such equipment. Therefore, the manufacturer who produces auxiliary or replacement tanks or propane systems, as distinct from the alterer who installs such equipment, would be subject to these responsibilities for production defects. A person who both produces such equipment and installs it in new vehicles prior to their delivery to the ultimate consumer would be subject to responsibilities for safety defects stemming from both production and installation of the equipment.

Under section 108(a)(1)(D) and 109(a), any person who fails to provide notification of or remedy for a safety defect is liable for a civil penalty of up to $ 1000 per violation.

Tamperers have no safety defect responsibilities for their tampering. As noted above, only manufacturers of motor vehicles or motor vehicle equipment are subject to sections 151 et seq. Since the term "manufacturer" is interpreted to refer to those who produce, assemble or import new vehicles or equipment and since tamperers, by definition, deal with used vehicles only, tamperers are not manufacturers.

Finally, there is the larger and more far reaching question of the liability of the alterers, tamperers, and manufacturers in tort. Whether or not these parties are liable under the Act for their actions, they may well be liable in tort. Both alterers and tamperers may be liable for the manner and location in which they install auxiliary or replacement gasoline tanks or propane systems in vehicles. Likewise, the manufacturers of these items of motor vehicle equipment may be liable for their design, materials, manufacture or performance. These persons may wish to consult a local lawyer on their liability in tort.

I hope that you will find this discussion helpful. If you have any further questions I will be happy to answer them.

Frank Berndt Chief Counsel

ID: aiam1057

Open
Mr. Ralph L. Finley, 12476 Dover Court, Saratoga, CA 95070; Mr. Ralph L. Finley
12476 Dover Court
Saratoga
CA 95070;

Dear Mr. Finley: Thank you for your letter of March 8, 1973, in which you reques information regarding safety standards or restrictions pertaining to rumble seat installation. The installation you have made and contemplate merchandising falls into the aftermarket category.; Aftermarket seat assemblies installed in vehicles, after the sale o such vehicles is consummated, are not required to comply with Federal Motor Vehicle Safety Standard No. 207, Seating Systems. However, it is reasonable to expect that those who manufacture, sell, and install aftermarket seats will make them at least as strong as required by the standard, and will install seat belt systems to help prevent ejection and other injuries.; I am enclosing a copy of our Summary Description of Standards an Federal Motor Vehicle Safety Standard No. 207 for your information and retention. I appreciate your interest in motor vehicle safety.; Sincerely, Robert L. Carter, Associate Administrator, Motor Vehicl Programs;

ID: nht87-1.1

Open

TYPE: INTERPRETATION-NHTSA

DATE: 01/01/87 EST

FROM: S.L. LEPOSKY -- EQUIPMENT SUPPLY CO

TO: ALL DISTRIBUTORS AND SALESMEN.

TITLE: NON USE OF DUCK BILLED STEEL TIRE HAMMERS

ATTACHMT: ATTACHED TO LETTER DATED 02/11/88 FROM ERIKA Z JONES TO BETH WHITMAN; REDBOOK A31, STANDARD 110, 120; SA 19 AR STEELHAMMERS 2J; SA 29 STEELHAMMERS 2J; LETTER DATED 01/21/87 FROM S. L. LEPOSKY TO DISTRIBUTORS; LETTER DATED 07/09/87 FROM LEO CARE Y TO BETH WHITMAN

TEXT: We have just returned from the annual National Wheel & Rim Meeting in Phoenix, Arizona. The tone of the meeting from Wheel & Rim Manufacturers was one of concern and rightly so. They have all reprinted and issued their new Rim & Tire Service Manuals ou t-lining and telling tire dealers, fleets, mining and construction users that they MUST NOT USE steel hammers to disassemble or assemble truck rim components. The practice still goes on and probably will until more people are injured and more lawsuits f iled.

For your convenience we have enclosed two pieces of instruction material produced by Rubber Manufacturers Association (RMA) and National Highway, Traffic Safety & Health Administration (NHTSHA). Have your salesmen carry this with them and discuss it wit h your customers.

The logical alternative to the steel duck bill hammer is the "COMBI" Truck & Farm Tire Bead Breaker. If your people will talk about the regulations, your customers will soon start to buy the proper equipment to replace the hammer.

One of the best places to start is with local City, County, State and Federal service operations. They are very cognizant of the OSHA regulations.

ID: aiam4683

Open
Tracey Powell Legislative Coordinator Government Relations American Motorcyclist Association P.O. Box 6114 Westerville, OH 43081-6114; Tracey Powell Legislative Coordinator Government Relations American Motorcyclist Association P.O. Box 6114 Westerville
OH 43081-6114;

Dear Tracey Powell: This is in reply to your letter of November l4 l989, with respect to existing prohibitions in some States against the use of modulating headlamps on motorcycles. The apparent basis of the prohibition is that flashing lamps are generally reserved for emergency vehicles. You point out the distinction that Standard No. 108 makes between the two types of headlamps, and ask our 'assistance in attaining uniform recognition of the legal use of modulating headlights through the United States . . . .' As you note, there is a legal distinction in Standard No. 108 between a modulating headlamp (one that goes from a higher to a lower intensity within either the upper or lower beam) and a flashing one (one that goes from either the upper or lower beam to off). Further, section S5.6.1 of Standard No. 108 provides that 'A headlamp on a motorcycle may be wired to modulate.' The authority of States to regulate this aspect of motorcycle lighting is constrained by section l03(d) of the National Traffic and Motor Vehicle Safety Act (l5 U.S.C. 1392(d)). This section provides in pertinent part that: w henever a Federal motor vehicle safety standard . . . is in effect, no State. . . shall have any authority either to extablish, or to continue in effect, with respect to any motor vehicle. . . any safety standard applicable to the same aspect of performance of such vehicle. . . which is not identical to the Federal standard.' The effect of this provision of the Safety Act with respect to lighting is to expressly prohibit a State from enacting a law that forbids a manufacturer from installing headlamp modulators on motorcycles. I hope that this responds to your concerns. Sincerely, Stephen P. Wood Acting Chief Counsel /;

ID: aiam1427

Open
Mr. Martin V. Chauvin, Chief, Carrier Inspection Section, New York State Dept. of Transportation, 1220 Washington Avenue, State Campus, Albany, NY 12226; Mr. Martin V. Chauvin
Chief
Carrier Inspection Section
New York State Dept. of Transportation
1220 Washington Avenue
State Campus
Albany
NY 12226;

Dear Mr. Chauvin: This is in reply to your letter of January 7, 1974, inquiring whethe the words emergency door' may be used in lieu of emergency exit' under S5.5 of Motor Vehicle Safety Standard No. 217. You indicate that New York's regulations manual specifies the use of the words, emergency door,' and that a revised printing of the manual presently under way still contains this requirement.; While the NHTSA does not consider the phrase emergency door' to b synonymous with emergency exit (we do not believe push-out windows or other non-door emergency exits are appropriately marked emergency door'), we would not consider a bus to fail to conform to Standard No. 217 if its emergency doors were marked emergency door.' Emergency exits other than doors, however, must be marked emergency exit.; NHTSA standards apply only to vehicles manufactured after a standard' effective date. Standard No. 217 does not apply to buses in use that were manufactured before its effective date of September 1, 1973.; I point out that the provisions of the National Traffic and Moto Vehicle Safety Act dealing with preemption of State requirements (15 U.S.C. 1392(d)) prohibit New York from enforcing its requirement that emergency exits be marked emergency door.'; Sincerely, Lawrence R. Schneider, Chief Counsel

ID: aiam4609

Open
Mr. H. Hasegawa Automotive Lighting Engineering Control Section Stanley Electric Co. Ltd.; Mr. H. Hasegawa Automotive Lighting Engineering Control Section Stanley Electric Co. Ltd.;

FAX 03-792-0007 (Japan) Dear Mr. Hasegawa: This is in reply to your FA letter of May 22, l989, to Richard Van Iderstine of this agency. You have two questions with respect to the amendment to Standard No. l08 published on May 9, l989 (Docket No. 85-15, Notice 8). Your first question is the effective date of paragraph S7.7.5.1.(a), which you point out was not previously a requirement of Standard No. l08. You suggest the need for a delayed effective date (but give no reason why one may be needed). Paragraph S7.7.5.1(a) will be effective June 8, l989. Although the requirement is a new one (the restriction on motion of a headlamp when an external aiming device is applied to it), it was proposed as part of the December 29, l987 NPRM, and no comments received indicated a need for a delayed effective date. Your supposition is correct, S7.5.5.1 will apply to all headlamps with an external aiming system, including those incorporating replaceable bulbs. Your second question relates to paragraph S7.7.5.l(b), and you ask 'whether the requirement of '0.1 in. max.' will be determined, either during the test or after the test'. In pertinent part, subsection (b) states 'nor shall the lamp recede more than 0.1 in. (2.5 mm) after being subjected to an inward force....' This means that the measurement is determined after the test. Sincerely, Stephen P. Wood Acting Chief Counsel /;

ID: aiam1996

Open
Mr. Richard A. Fisher, Wenger Corporation, Owatonna, MN 55060; Mr. Richard A. Fisher
Wenger Corporation
Owatonna
MN 55060;

Dear Mr. Fisher: This responds to your July 10, 1975, question whether an air-brake trailer which was begun before the effective date of Standard No. 121, *Air brake systems*, can be completed after the effective date of the Standard without complying with the requirements of the standard.; Section 571.7 of Title 49, Code of Federal Regulations, establishes th point at which the Federal motor vehicle safety standards apply to the manufacture of motor vehicles and states in part: '. . . each standard . . . applies according to its terms to all motor vehicles or items of motor vehicle equipment the manufacture of which is completed on or after the effective date of the standard.' Therefore, the trailer you describe must conform to the requirements of Standard No. 121 if it is completed after January 1, 1975.; I have enclosed a copy of a *Federal Register* notice that concerns th manufacture of air-braked trailers, and which explains that a trailer may be certified as conforming as a completed vehicle when it is substantially completed. You should be able to determine if the trailer in question was substantially completed prior to January 1, 1975, for purposes of certification.; Sincerely, Frank Berndt, Acting Chief Counsel

ID: aiam0194

Open
Mr. Warren M. Heath, Commander, Engineering Section, Department of California Highway Patrol, P.O. Box 898, Sacramento, CA 95804; Mr. Warren M. Heath
Commander
Engineering Section
Department of California Highway Patrol
P.O. Box 898
Sacramento
CA 95804;

Dear Mr. Heath: In response to your letter of July 9 to Mr. Toms I would like to mak clear that the creation of the subcategory 'mobile structure trailer' does not remove mobile homes towed on their own wheels from their original categorization under the Federal motor vehicle safety standards as trailers. This means that rule making actions applicable to 'trailers' are also applicable to mobile homes unless there is specific language indicating that a Federal standard or portion thereof does not apply to a mobile structure trailer.; Therefore, in answer to your specific questions: >>>(a) Proposed Standards Nos. 119 and 120 would apply to trailers an therefore to mobile structure trailers.; (b) No proposal has been issued which would extend the Federa hydraulic brake standard, No. 105, to cover trailers. Therefore a State may adopt hydraulic brake requirements for mobile homes. However, we have issued a proposal (Docket No. 70-16, 35 F.R. 10456, June 26, 1970) which would establish requirements for 'trailers equipped with air brake systems'. If adopted, this new standards would preclude a state from adopting other than identical air brake requirements for mobile homes and other trailers. The point may be academic as it is my understanding that mobile homes, as a rule, are equipped with electric brakes.<<<; Sincerely, Lawrence R. Schneider, Assistant Chief Counsel, Regulation

ID: aiam0314

Open
Mr. P.H.G. Morgan, Managing Director, Morgan Motor Company, Ltd., Pickersleigh Road, Malvern Link, Worchestershire, England; Mr. P.H.G. Morgan
Managing Director
Morgan Motor Company
Ltd.
Pickersleigh Road
Malvern Link
Worchestershire
England;

Dear Mr. Morgan: This is in reply to your letter of March 17, 1971, in which yo requested further clarification of the test procedures of the standard on side door strength, Standard No. 214. Your diagram of the Morgan Plus 8 shows a horizontal line drawn across the door 5 inches above the lowest point of the door. This would appear to be an accurate depiction of the location of the lower edge of the loading device as specified in the standard. You express concern that the line is a considerable distance from the ground, but under the requirements of the standard, the height above the lower edge of the door is the relevant height, and not the height above ground.; I hope this will help to resolve your questions with respect t Standard No. 214.; Sincerely, Lawrence R. Schneider, Acting Chief Counsel

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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