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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 13181 - 13190 of 16517
Interpretations Date

ID: nht91-5.24

Open

DATE: August 14, 1991

FROM: Paul Jackson Rice -- Chief Counsel, NHTSA

TO: Mickey Hale -- General Sales Manager, Jackie Cooper Olds-GMC

TITLE: None

ATTACHMT: Attached to letter dated 6-18-91 from Mickey Hale to Steve Kratzke (OCC 6173)

TEXT:

This responds to your letter to Steve Kratzke, our Deputy Assistant Chief Counsel for Rulemaking, asking what type of safety belt must be installed at rear seating positions in conversion vans. You indicated that these conversions would be made to used 1990 Chevrolet full-sized vans. You intend to install lap/shoulder belts at the front two seating positions and lap-only belts at each of the middle and rear seating positions, and asked if this planned installation would conflict with the safety belt installation requirements set forth in NHTSA's safety standards. The answer is that this planned installation would not conflict with Federal requirements, as explained below.

To begin, NHTSA does not classify vehicles as "vans." Instead, cargo vans are generally classified as "trucks," and passenger vans are generally classified as "multipurpose passenger vehicles." S4.2.4 of Federal Motor Vehicle Safety Standard No. 208 Occupant Crash Protection (49 CFR S571.208) requires that trucks and multipurpose passenger vehicles manufactured on or after September 1, 1991 with a gross vehicle weight rating of 10,000 pounds or less be equipped with lap/shoulder belts at front outboard and rear forward-facing outboard seating positions and with either lap/shoulder or lap-only belts at every other designated seating position. Any of these vehicles manufactured before September 1, 1991 are required to be equipped with lap/shoulder belts at front outboard seating positions and with either lap/shoulder or lap-only belts at every other designated seating position. Thus, if your van conversions were new vehicles, your planned safety belt installations would be permissible for van conversions manufactured before September 1, 1991, but impermissible for conversions manufactured after that date.

You stated, however, that the van conversions in question would not be new vehicles, but would instead be used 1990 model year vehicles. The National Traffic and Motor Vehicle Safety Act specifies that vehicles must conform with all applicable safety standards up until the first purchase for purposes other than resale. After the first purchase, the vehicle is no longer required by Federal law to conform with all safety standards. However, the Safety Act includes a provision that prohibits any manufacturer, distributor, dealer, or motor vehicle repair business from "rendering inoperative" any device or element of design installed in or on a vehicle in compliance with an applicable safety standard. This prohibition applies to both new and used vehicles and means that the named commercial entities may not remove safety equipment required by the safety standards, such as seat belts, unless the manufacturer, distributor, dealer, or repair business reasonably believes the vehicle will not be used during the time its compliance with the safety standards has been

"rendered inoperative." In the case of safety belts, this means that your dealership could remove belts to make repairs or modifications, but must reinstall or replace the belts before returning the vehicle to a customer.

NHTSA does not consider it to be a violation of the "render inoperative" prohibition when a dealer modifies a used vehicle in such a way that the vehicle is equipped with safety belts at every designated seating position and those safety belts are the type that Standard No. 208 permitted to be installed at that seating position in the vehicle when it was new. In this case, your letter states that you would equip the used 1990 conversion vans with lap/shoulder belts at front outboard seating positions and lap-only belts at all other seating positions. This belt installation was permitted by Standard No. 208 for new 1990 multipurpose passenger vehicles. Therefore, your planned installation would not violate the "render inoperative" prohibition of the Safety Act with respect to the safety belt installation requirements for these vehicles.

I hope this information is helpful. If you have any further questions or need some additional information, please feel free to contact Mr. Kratzke at this address or by telephone at (202) 366-2992.

ID: nht91-5.25

Open

DATE: August 14, 1991

FROM: Paul Jackson Rice -- Chief Counsel, NHTSA

TO: Jack Garbo -- President/General Counsel, AVM Products, Inc.

TITLE: None

ATTACHMT: Attached to letter dated 7-11-91 from Jack Garbo to Mary Versailles (OCC 6224)

TEXT:

This responds to your letter of July 11, 1991, requesting clarification of Standard No. 208. Specifically, you asked "whether the three-point seatbelt is required in all middle and rear outboard seating positions in the multipurpose vehicles after September 1, 1991." Specifically, you requested verification of your interpretation that these requirements apply only to forward-facing seating, and not rearward-facing seating. Your interpretation regarding rearward-facing seats is correct.

Beginning September 1, 1991, multipurpose passenger vehicles must have lap/shoulder belts at every forward-facing rear outboard designated seating positions. The term "rear outboard designated seating position" is defined in S4.2.4.1(b) as an "outboard designated seating position" located rearward of the front seat(s). If by the phrase "middle and rear outboard seating positions" you are referring to outboard seating positions in different rows of seats located behind the front seat(s), each such position that is forward-facing must be equipped with lap/shoulder belts after September 1, 1991. If instead the term "middle" is referring to center seating position(s) on bench seats, such positions may be equipped with either lap or lap/shoulder belts. Rearward-facing seats may also be equipped with either lap or lap/shoulder belts.

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

ID: nht91-5.26

Open

DATE: August 14, 1991

FROM: Elizabeth D. Smith -- Department Head, Community and Special Services, Division of Program Monitoring, State of South Carolina, State Health and Human Services Finance Commission

TO: Mary Versailles -- Office of Chief Counsel, NHTSA

TITLE: None

ATTACHMT: Attached to letter dated 10-15-91 from Paul Jackson Rice to Elizabeth D. Smith (A38; VSA S108(a)(2)(A); Std. 208; Std. 209; Std. 210; Std. 222)

TEXT:

I spoke with you last week regarding the addition of safety belts to a 1986 Ford Club Wagon which is currently used to transport children between three and five years of age. The vehicle is classified as a bus according to the Federal Motor Vehicle Standards. It and others like it, which are owned by our agency and assigned to child development contractors, are used primarily to transport pre-school age children to and from the child development center and on field trips. The vehicle has seat belts for 15 passengers including the driver. The question has been posed regarding the legality and safety of adding additional seat belts in order for providers to transport up to four additional children. As equipped now, the providers are physically able to belt more than one child per seat belt. However, their compliance with state laws in doing such is questionable.

I have checked with the Legal Division of the South Carolina Highway Department and have been advised by Bill Todd that there is currently no state law that would forbid someone from adding seat belts to a vehicle and transporting more than 14 children on these vans. Mr. Todd advised me to check with you regarding any Federal regulations that would prohibit this. Contact was also made with Robert Green, who represents the Coalition for Safer, Cleaner Vehicles. He saw no problem with doing this. He suggested that the anchor points may be a problem, but since the vehicles are being used to transport children, he didn't see any reason why they would be a problem.

The particular provider who has raised this question would use the local Ford dealership to install the additional belts. She has spoken with the service manager at the dealership and he feels that this can easily be accomplished without adversely affecting the safety of the vehicle. He felt that the additional weight of the extra passengers would not overload the vehicle, but planned to discuss it with his district or regional manager this week. The service manager also spoke to a Highway Patrol Sergeant who stated that the vehicle doesn't specify the seating capacity or the number of persons per seat; therefore, he saw no problem with the installation of additional seat belts. There is nothing in any of the materials regarding this vehicle that states it is a 15 passenger van. The only thing that currently defines that is the number of seat belts. Our main question for your office is whether the addition of seat belts violates the Federal Motor Vehicle Safety Standards Act.

Additional information taken from the inside door of the van is:

Date 4/86 GVWR 8000 lbs./391 KG Front GAWR: 3400 lbs. Rear GAWR: 6,084 lbs.

1,542 KG WITH 2,759 KG WITH Type Bus (not school bus) 9M

Any information that you can provide us in the very near future regarding these questions is greatly appreciated. We are certain that other child care provider would be interested in your response as many of them routinely transport more than 14 children on these vans by double belting them. If there are extenuating circumstances that impact your responses, please outline them for us. For example, the person manning your hotline number stated that, if the dealer made the installations and would re-certify the safety compliance, then it may be O.K. for the additional belts to be installed.

We don't want our providers to place their clients and their drivers at risk when riding in a vehicle that has been altered, but we also recognize their dilemmas in meeting clients' needs for transportation and the funding limitations that prevent them from purchasing another vehicle and hiring and training staff to drive it. I understand that the liability question would rest with the state if there was an accident.

Thank you for your assistance in promptly addressing this situation. If you need additional information, please feel free to call me at (803) 253-6154.

ID: nht91-5.27

Open

DATE: August 19, 1991

FROM: Phil Lanam -- Engineer, Ukiah Fire Department

TO: Taylor Vinson -- DOT/OCC

TITLE: None

ATTACHMT: Attached to letter dated 10-23-91 from Paul Jackson Rice to Phil Lanam (A38; Std. 121); Also attached to letter dated 3-4-80 from Frank Berndt to Joe Cain

TEXT:

I have been referred to you by Engineer Blane Laubis of Vehicle Safety Compliance.

My question to him was in regards to a piece of equipment we just purchased. This piece of equipment is a 1978 F700 Ford truck, 24500 GVW, VIN N75FVB89042. The problem we are having with it is the Eaton anti-skid brake system. Part of the anti-skid system has been removed. In my research, I have found this system was plagued with problems.

We would like to install standard S cam air brakes on this vehicle. I have talked with several agencies and they have made this change. My question to you concerns the legality of this change. I have been told there is a clause in the anti-skid law that allows this on some problem plagued systems.

I would greatly appreciate any information you could give me to help resolve this problem.

ID: nht91-5.28

Open

DATE: August 19, 1991

FROM: Thomas D. Turner -- Manager, Engineering Services, Blue Bird Body Company

TO: Paul Jackson Rice -- Chief Counsel, NHTSA

COPYEE: Robert Hellmuth -- OVSC

TITLE: Re Request for Interpretation: 1. 49 CFR Part 571.217 Sections S5.3 and S5.4 2. Report No. 217-MSE-90-10-TR0009-10 Bus Window Retention and Release Compliance Test-FMVSS 217 1990 Blue Bird (33 Passenger) 3. NEF-31KNu/NCI 3189 4. NEF-31KNu/NCI-3189.2

ATTACHMT: Attached to letter dated 11-13-91 from Paul Jackson Rice to Thomas D. Turner (A38; Std. 217)

TEXT:

A 1990 Blue Bird bus was compliance tested to the requirements of FMVSS 217 as reported in Reference 2. As a result of the test, NHTSA's Office of Vehicle Safety Compliance (OVSC) issued NCI letters, including references 3 and 4. Blue Bird Body company responded as requested to reference 3 and requested and attended a technical meeting on July 2, 1991 in Washington, D.C. in response to reference 4. As a result of this activity, there is one issue that needs to be formally resolved before NCI 3189 can be closed. The following paragraphs discuss the issue, provide the OVSC position, provide the Blue Bird Body Company position and request an interpretation of which position is correct according to Standard No. 217.

49 CFR Part 571.217-Sections S5.3.2 and S5.4.1

Discussion:

Section S5.3.2 provides two force application options for options for emergency exit release mechanisms. Option (a) LOW FORCE APPLICATION specifies type of motion as "Rotary or straight", and magnitude as "Not more than 20 pounds." Option (b) HIGH FORCE APPLICATION specifies type of notion as "Straight, perpendicular to the undisturbed exit surface.", and magnitude as "Not more than 60 pounds." Section S5.4.1 establishes emergency exit extension reach distances and force levels based on Section S5.3.2.

OVSC Position:

As stated in Reference 4, the OVSC position is: "In this case the release handle is pin jointed at the top much like a piano hinge. The only possible movement the handle can experience is to rotate around the pin joint. The release mechanism neither slides nor translates, IT VERY CLEARLY ROTATES. The video that Blue Bird supplied this office shows that the handle rotates during the release of the window. An occupant of the bus would then have to apply a force in a rotary notion to operate the release mechanism. The maximum release should therefore be 20 lbs."

Blue Bird Body Company Position:

Blue Bird Body Company agrees with the OVSC that the release mechanism of the pushout window design used by Blue Bird is rotary; however, it is our understanding that Standard 217 regulates the "type of motion" of the FORCE APPLICATION used to manually operate the release mechanism and does not regulate the "type of motion" of the RELEASE MECHANISM itself. Blue Bird Body Company disagrees with the OVSC that an occupant would have to use a rotary motion to operate the mechanism. The introduction of the book The Way Things Work by David Macaulay supports Blue Bird's position by stating:

MOVEMENT AND FORCE Many mechanical machines exist to convert one form of movement into another. This movement may be in a straight line (in which case it is often backward-and-forward, as in the shuttling of a piston-rod) or it may be in a circle. Many machines convert linear movement into circular or rotary movement and vice versa, often because the power source driving the machine moves in one way and the machine in another.

But whether direction is altered or not, the mechanical parts move to change the force applied into one-either larger or smaller-that is appropriate for the task to be tackled. (1)

---------- (1) David Macaulay, Houghton Mifflin Company, The Way Things Work, Copyright 1988, ISBN 0-395-42857-2

The essence of our argument and position is the principal that a straight linear force can be used to operate a rotary mechanism. A weight put on a lever arm and used to lift an object against the force of gravity is an example of this principle. The straight linear force of gravity acting on the weight is the only application force acting on the lever arm. The lever arm's reaction to this force will be rotary motion and will involve other motions and forces; however, the application force of gravity, since it acts only in a direction toward the center of the earth, remains straight and linear. As another example, a latch string, extending through the latch string hole of a door, can be pulled straight out and perpendicular to the surface of door to activate the latch bar and allow opening of the door. Note that in this example, the latch bar pivots or rotates in a different plane and direction from the application force.

Since the pushout window release mechanism of the Blue Bird pushout windows is in the high force application region and is releasable by a single occupant, operating one mechanism, using one force application that is straight, perpendicular to the undisturbed exit surface, we must be allowed the use of option (b) HIGH FORCE APPLICATION and, therefore, are allowed a magnitude of 60 pounds.

The report, reference 2, determined the type of motion of release mechanism of the Blue Bird pushout window to be rotary and, therefore, determined the required force application to 20 pounds maximum. It determined the type of motion for extension of the pushout window to be

straight and perpendicular and, therefore, allowed a 60 pound application force. The pushout windows are hinged at the top and must swing out (rotate) to open. In a nearly identical way, the release mechanism is hinged at the top and must swing in (rotate) to unlatch. The only difference, from a principle of mechanics viewpoint, is the length of the lever arm from the hinge to the point of force application. For the latch mechanism, the lever arm is short and the motion appears rotary. For the pushout window, the lever arm is long, and the motion appears linear in reality, both motions are rotary but both can be actuated by straight linear force applications. The discrepancy and inconsistency in applying different requirements to mechanisms that operate in the same manner must be resolved and the resolution must be based on established principles of mechanics.

Request for Interpretation:

Blue Bird Body Company requests confirmation that the requirements of reference 1, with regard to motion, apply to the application forces and not to the release mechanisms being activated by the forces. Further, we request confirmation of our understanding of the principles of mechanics, as applicable to FMVSS 217 requirements, that straight linear forces can cause rotary notion to occur and can be used to manually operate a rotary mechanism. Blue Bird's desire that our pushout rectangular transit window design be allowed the use of Section S5.3.2 (b) HIGH FORCE APPLICATION of 60 pounds is consistent with both the letter of FMVSS 217 and the intent of the standard. We believe the requirements as written, acknowledge the limitations in typical human physical capabilities. When rotary motion (involving gripping and forearm rotation) is required to operate a release mechanism (such as rotating a common door knob) the allowable force levels are restricted to 20 pounds. Similarly, if reach distances for straight motion are such that body and arm extension are required to reach the mechanism, the allowable force levels are restricted to 20 pounds. Hence in these cases, the "Access Region for Low Forces" and LOW FORCE APPLICATION are required. When a push or pull force is required and the reach distances are small, as is the case with the Blue Bird pushout transit window latch, a human being can easily exert higher forces and the "Access Region for High Forces" and HIGH FORCE APPLICATION are allowed. If NHTSA believes that it is more appropriate for pushout windows to operate within the Low force application requirements, such a change should be implemented through Rulemaking Action and not by interpretations made in Compliance Test Procedures.

Blue Bird Body Company requests that thoughtful and timely responses to the above requests for interpretation be provided so that NCI 3189 can be satisfactorily resolved and closed in the best interests of motor vehicle safety.

If additional information or further discussion will assist in timely resolution of the issues involved, we will be glad to visit NHTSA to provide whatever information or assistance possible.

ID: nht91-5.29

Open

DATE: August 20, 1991 EST

FROM: Jt Covelli -- President, Jt Covelli Marketing & Media

TO: Taylor Vinson -- Legal Counsel, NHTSA

TITLE: None

ATTACHMT: Attached to letter dated 9-6-91 from Paul Jackson Rice to Jt Covelli (A38; Std. 108)

TEXT:

Recently a woman in the creative department of my advertising agency saw a decal placed on the third brake light of a car in Illinois. The decal's backround was clear and in black bold letters was the name of the auto dealer. The letters appear only when the brake light is on and are only visible from a short distance.

I have been advised by the Wisconsin D.O.T. that Wisconsin has no law governing the use of a decal on the third brake light. Is there a federal law allowing the use of a clear decal in this manner?

My agency has a client we would like to present the idea to. We respectfully request your legal opinion in this matter. Thank you in advance for your consideration. Please feel free to call me with questions at 608 274-9906. I look forward to hearing from you.

ID: nht91-5.3

Open

DATE: July 19, 1991

FROM: Charles Lombard -- Lombard Industries

TO: Rick Iderstiene -- NHTSA

TITLE: Safety Standard #211

ATTACHMT: Attached to letter dated 9-12-91 from Paul Jackson Rice to Charles Lombard (A38; Std. 211); Also attached to letter dated 11-13-87 from Erika Z. Jones to William J. Maloney

TEXT:

Please send me a letter of your approval to market my new wheel and/or hubcap design at your earliest convenience.

I have worked hard and am fighting cancer. I've put in nine years in the making of this product with safety always in mind. I have worked with General Motors and Ford Motor Company for 40 years in general management positions, always making everything to be safe and clean. I have 40 years with a perfect record. I've received many awards.

The design will be a little deeper and inwards. The TIRE will ALWAYS HIT THE CURB FIRST. It's one piece and has nothing to do with holding the wheel, or rather the design has nothing to do with holding the wheel on the car or truck. It just has a sparkle affect and will keep the wheel cooler, eliminating brake fade (a good safety factor).

As you can see, the wheel will still be held on by 4, 5 or 6 lug nuts. You can see we threw weeds, cloth and other debris directly into it, and the design will not catch it. It is DEFINITELY NOT a true knock-off with sharp ends. The pictures enclosed will show a better idea of how it is held on. It is definitely stronger and much more safe than anything that the auto factories are building today.

Enclosed are some pictures of many other makes and models. Much of mine will be molded and poured in appearance only (strong and safe). The lug nuts and the outer edge of the hub are safe and much more leaning toward the safety factor than many that are on the market today. I have many factory awards for marketing all types of vehicles.

We found by throwing cloths or debris into the wire wheels of today, they will catch more than any other design and will break the spokes. The knock-off hubs and prongs I know have been outlawed many years ago. My wheel and hubcaps were studied by the marketing professosr and students of the University of Arizona three years ago. Compared to some market studies, my design was much stronger and safe, and the wheel made of steel and chrome NEVER has to be retourqued like aluminum.

I hope I pass your specifications and endorsement. Thank you so much.

Attached to drawings of wheel rims and hub caps. (Graphics omitted)

ID: nht91-5.30

Open

DATE: August 23, 1991

FROM: Jon Nisper -- K.B. Lighting, Inc.

TO: Jerry Medelin -- NHTSA

TITLE: Telephone conversation 8/20/91

ATTACHMT: Attached to letter dated 10-7-91 from Paul Jackson Rice to Jon Nisper (A38; Std. 108)

TEXT:

In reference to our telephone conversation please refer to the attached sheet showing a proposed headlamp / turnsignal assembly.

In each case, where should the 100mm separation be measured for turn signal headlamp position? The reflector being considered is an advanced variable focus highbeam / lowbeam utilizing a 9007 bulb. In both cases the inboard wall serves no functional pupose. And in fact, the inboard wall could be blackened with no loss of performance.

Thank you for your opinion. If you feel that this situation warrants it, I will follow this telefax up with a formal letter for official judgement.

Attachment

Diagram of the proposed headlamp/turnsignal assembly. (Graphics omitted)

ID: nht91-5.31

Open

DATE: September 3, 1991

FROM: Paul Jackson Rice -- Chief Counsel, NHTSA

TO: Thomas R. Steinhagen -- Custom Accessories, Inc.

TITLE: None

ATTACHMT: Attached to letter dated 8-1-91 from Thomas R. Steinhagen to Dee Fujita (OCC 6298)

TEXT:

This responds to your August 1, 1991 letter to Ms. Fujita of my off asking whether Federal Motor Vehicle Safety Standard No. 107, Reflecting Surfaces, applies to a replacement windshield wiper arm and blade sold at retail, the end consumer.

As Ms. Fujita informed you in a July 31, 1991 telephone conversation, generally speaking, the answer is no. Standard 107 applies to new motor vehicles--passenger cars, multipurpose passenger vehicles, trucks and buses (paragraph S2 of Standard 107)--and not to items of motor vehicle equipment, such as replacement wiper arms and blades. Thus, replacement wiper arms and blades may be sold to consumers without violating Federal law, even if the component does not meet Standard 107.

However, S108(a)(2)(A) of the National Traffic and Motor Vehicle Safety Act prohibits any manufacturer, distributor, dealer or repair business from "rendering inoperative" any device or element of design installed in or on a vehicle in compliance with an applicable safety standard. This prohibition applies to both new and used vehicles. If a person in the aforementioned categories installed on a vehicle a wiper arm and blade that did not meet the specular gloss requirements of Standard 107, it would be rendering inoperative the compliance of the vehicle with Standard 107. Violations of S108 of the Safety Act are subject to a civil penalty of up to $1,000 per violation. The prohibition of S108(a)(2)(A) does not apply to individual vehicle owners who alter their own vehicles. Thus, individual owners may install any item of motor vehicle equipment regardless of its effect on compliance with Federal motor vehicle safety standards. However, NHTSA encourages vehicle owners not to tamper with vehicle safety equipment if the modification would degrade the safety of the vehicle.

In addition to the above, you should be aware that manufacturers of motor vehicle equipment are subject to the requirements in sections 151-159 of the Safety Act concerning the recall and remedy of products with defects relating to motor vehicle safety. If you or NHTSA determines that a safety-related defect exists, you must notify purchasers of your product and remedy the problem free of charge. Any manufacturer which fails to provide notification of or remedy for a defect are subject to a civil penalty of up to $1,000 per violation.

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

ID: nht91-5.32

Open

DATE: September 3, 1991

FROM: D. G. Kong -- General Manager, Certification Business Dept., KIA Motors Corp.

TO: Andrew J. Sklover -- Special Assistant to the Administrator, NHTSA

TITLE: None

ATTACHMT: Attached to letter dated 10-7-91 from Paul Jackson Rice to D. G. Kong (A38; Std. 216, Part 567)

TEXT:

We are pleased to get to give our best regards to you this time since your visit to our company last year.

Since then, we are trying to do our best for developing our future models suitable for American market in accordance with the guidance of NHTSA.

For the lack of information on USA safety certification, we are in need of your help for the followings: (A) FMVSS 216 Roof Crush Resistance for Convertibles : According to S3(c) of FMVSS 216 Roof Crush Resistance, convertible vehicles are exempted from application for this rule, we understood. We'd like to know the clear & detailed definition of convertibles. Let's make an example for your reference. The soft roofline of ISUZU Amigo (Sports Utility Vehicle) is composed of half hard top with steel and half soft top with plastic or special cloth. Is it called by convertible in connection with application of FMVSS 216 requirements effective September 1, 1993? (Soft top can be detachable in use.)

(B) Submitting reports to NHTSA and state governments: In relation to USA Safety certification, there are lots of laws & regulations of federal/state goverments, we know. What regulations in addition to FMVSS do we should follow (expecially in state regulations) and what reporting (such as, Bumper-Indiana and VIN Reporting-NHTSA) do we have to submit when we proceed USA Safety Certifiction? We'd like know the relationship of laws and regulations between federal states.

We're wondering if you are in charge of these queries or not, but you are kindly requested to deliver the message to the man in charge.

We'll do endeavor to keep up with the line of NHTSA to improve the safety of motor vehicles and at last wish you and your family every happiness.

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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