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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 8671 - 8680 of 16517
Interpretations Date

ID: 22837ogm

Open

    Mr. James Arnold
    MAC Trailer Manufacturing Inc.
    14599 Commerce Street
    Alliance, OH 44601

    Dear Mr. Arnold:

    This responds to your request for an interpretation of Federal Motor Vehicle Safety Standard (FMVSS) No. 121, Air Brake Systems (49 CFR 571.121). You indicate that your company manufactures truck trailers for highway use. Your letter further indicates that a number of your dealers have asked that your company produce trailers equipped with a certain item of equipment to satisfy the antilock brake systems (ABS) requirements of FMVSS No. 121. The device in question, marketed by its manufacturer Air Brake Systems, Inc. (ABS, Inc.) as the MSQR-5000, is described in promotional material from ABS, Inc. as a "Differential Pressure Regulator Quick Release Valve." You have also attached a document from ABS, Inc. that contains a number of representations relating to the ABS requirements of FMVSS No. 121 and concludes as follows:

      Air Brake Systems Inc. hereby certifies that the MSQR-5000TM anti-lock brake system fully satisfies the definition of anti-lock brakes as required by 49 CFR 571.121 and exceeds the performance requirements of 49 CFR 30113(b)(3)(B)(ii). (Warning light excluded thereto.) ABS Brakes, Inc. Mt. Pleasant, MI 48858 USA

    Based on the aforementioned materials, you ask if a trailer equipped with the MSQR-5000 "system" installed as means of meeting ABS requirements would meet the requirements of FMVSS No. 121.

    By way of background information, the National Highway Traffic Safety Administration (NHTSA) does not provide approvals of motor vehicle or motor vehicle equipment. Under the National Traffic and Motor Vehicle Safety Act, it is the responsibility of the manufacturer to ensure that its vehicles or equipment comply with applicable safety standards. With certain exceptions related to special configurations, FMVSS No. 121 applies to vehicles - trucks, buses, and trailers - with air brake systems.

    As an equipment manufacturer, ABS, Inc., is not required to certify compliance of its product to FMVSS No. 121, but any vehicle manufacturer would be required to certify that its vehicle complies with all the requirements of FMVSS No. 121. It is not uncommon for a vehicle manufacturer to request information from an equipment manufacturer. However, the responsibility for compliance with FMVSS No. 121 and for certification of compliance rests with the vehicle manufacturer. As we have stated before, it is our opinion that reliance by a vehicle manufacturer solely on "certification of compliance" provided by an equipment manufacturer, without more, is not legally sufficient. Moreover, should it be determined that a vehicle does not comply with a Federal motor vehicle safety standard or contains a defect, the recall and remedy obligations of the National Traffic and Motor Vehicle Safety Act would fall upon the vehicle manufacturer and not the equipment manufacturer which supplied particular equipment. See 49 CFR Part 579. Possible liability in tort under state law could fall upon both the vehicle manufacturer and the equipment manufacturer. A private attorney could advise you about this possibility.

    The following represents our opinion based on the facts presented in your letter, the attachments provided with your letter and agency review of other data obtained from ABS, Inc.

    In marketing and selling the MSQR-5000, ABS, Inc., has represented, in advertisements, promotional materials and in direct contact with potential customers, that the MSQR-5000 is an ABS whose installation in a vehicle will result in the vehicle meeting the ABS requirements of FMVSS No. 121 (49 CFR 571.121). The configuration of the MSQR-5000 and the fact that the device has no electrical or electronic components has apparently led some potential customers of ABS, Inc. to ask NHTSA if the MSQR-5000 is a device which, if installed on a vehicle, would allow that vehicle to meet the ABS requirements of FMVSS No. 121. As discussed below, based on a review of the promotional materials describing the device and the principles involved in its operation, it is NHTSA's view that the installation of the MSQR-5000 alone would not allow a vehicle to meet FMVSS No. 121's ABS requirement.

    Among other things, FMVSS No. 121 requires that trailers (S5.2.3) and trucks (S5.1.6) be equipped with an ABS. For the purposes of FMVSS No. 121, ABS is defined in S4 of the standard as follows:

    Antilock brake system or ABS means a portion of a service brake system that automatically controls the degree of rotational wheel slip during braking by:

      (1) Sensing the rate of angular rotation of the wheels;

      (2) Transmitting signals regarding the rate of wheel angular rotation to one or more controlling devices which interpret those signals and generate responsive controlling output signals; and

      (3) Transmitting those controlling signals to one or more modulators which adjust brake actuating forces in response to those signals.

    In addition, in order to ensure that vehicle owners and operators have knowledge of the status of an ABS system installed on a truck, truck tractor or trailer, FMVSS No. 121 also contains extensive and detailed requirements for malfunction indicators that illuminate a light when the ABS is not working properly. These requirements, found in S5.1.6.2, S5.1.6.3 and S5.2.3.2, specify that a truck, truck tractor or trailer must have an electrical circuit that is capable of signaling a malfunction in the vehicle's antilock brake system, and must have the means for connection of this antilock brake system malfunction signal circuit to a trailer or towing vehicle. Such a signal must be present whenever there is a malfunction that affects the generation or transmission of response or control signals in the antilock brake system. The signal must remain present as long as the malfunction exists, whenever power is supplied to the antilock brake system, and each message about the existence of such a malfunction must be stored in the antilock brake system whenever power is no longer supplied to it.

    The ABS requirements of FMVSS No. 121 were incorporated into the standard by a final rule published in the Federal Register on March 10, 1995 (60 FR 13216). In the preamble to that final rule, the agency noted that 10 to 15 percent of heavy combination vehicle crashes involved braking induced instability or loss of control. These crashes resulted in significant property damage, injury and loss of life. In order to address the safety consequences of braking related instability, NHTSA amended FMVSS No. 121 to require effective antilock braking systems.

    One of the primary considerations in developing the new requirements was what, at a minimum, an antilock braking system must do in order to prevent or reduce crashes. The agency determined that due to the wide range of surfaces a vehicle may encounter in normal use, an effective ABS system must have the ability to determine if and when a braked wheel is momentarily locked as it passes from high to low traction conditions. Because of such varying conditions, the agency determined that any effective ABS must be a "closed loop" system - i.e., a system that continuously monitors the rate of wheel rotation, adjusts that wheel rotation when needed and reacts to ongoing changes in rotation caused by the operation of the system, changing road surfaces or both (60 FR 13217). Similarly, NHTSA determined that warning light requirements that established a minimum level of safety were also important for reducing crashes, deaths and injuries. The warning light requirements would inform operators of an ABS malfunction and both facilitate and encourage repairs of faulty ABS systems (60 FR 13244).

    The MSQR-5000 appears to lack one or more features that an ABS must have to meet FMVSS No. 121. Based on literature provided to us, the MSQR-5000 does not seem to have any means of automatically controlling wheel slip during braking by sensing, analyzing, and modulating the rate of angular rotation of a wheel or wheels. The components identified and described in the MSQR-5000 promotional materials do not have a means for measuring wheel rotation, recognizing wheel lockup, controlling or modulating brake pressure to a locked wheel, or preventing one or more wheels from locking if a driver applies maximum brake pressure to the system. Therefore, standing alone, the MSQR-5000 does not satisfy the definition of ABS as set forth in FMVSS No. 121.

    In addition, the MSQR-5000 also appears to lack any provision for illuminating a warning light providing notification of an ABS malfunction. In fact, the materials distributed by ABS, Inc., including the "Certification of Compliance, "indicate that the company believes that the ABS warning light requirements of FMVSS No. 121 are "excluded"by virtue of a decision issued by the United States Court of Appeals for the 10th Circuit in the case of Washington v. Department of Transportation, 84 F.3d 1222 (1996).

    The Washington case involved a challenge to the validity of FMVSS No. 121's ABS requirements on two grounds - that the requirements conflicted with existing Federal Highway Administration regulations governing motor carriers and that NHTSA exceeded its authority in issuing the rule by establishing that an ABS must have certain characteristics. Mr. Washington argued that the requirement that an ABS have certain minimum characteristics unduly restrained design choices. The Court of Appeals ruled in favor of NHTSA in regard to both of these claims. Moreover, while the Court's decision discussed the fact that manufacturers may apply for an exemption from an existing standard or petition the agency to modify an existing standard, the decision did not provide for any such exemption or "exclusion"for ABS, Inc., or any other manufacturer. The claims now made by ABS, Inc. - that the ABS warning light requirements of FMVSS No. 121 were "excluded,"or that ABS, Inc. is exempt from meeting this requirement - are incorrect. Similarly, any assertion that the Court of Appeals found that FMVSS No. 121 unduly restricted design choices is in error.

    If you have any questions, please contact Otto Matheke of my staff at (202) 366-5253.

    Sincerely

    John Womack
    Acting Chief Counsel

    ref.121
    d.6/4/01


Addendum: 09/26/01

At the request of Air Brake Systems, Inc. ("ABS, Inc."), the opinions stated in the foregoing letter are under further consideration by the agency, based, in part, on additional materials that ABS, Inc. has provided, or may submit, to the agency in the near future. The agency is now undertaking further review, after which NHTSA will, if appropriate, issue a revised interpretation to MAC Trailer.

2001

ID: 2283y

Open

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. l08 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. l08 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. l08 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 / ref:VSA#l08 d:2/l/90

1970

ID: 22843

Open



    Mr. Matz Larsson
    Sales Manager
    Broderna Holmbergs Fabriks AB
    Box 63
    SE-334 21 Anderstorp
    Sweden



    Dear Mr. Larsson:

    This is in response to your letter of March 7, 2001, asking whether the buckle release on your child restraint system meets the area requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 213, "Child Restraint Systems." The answer is yes.

    S5.4.3.5(c) of Standard No. 213 requires any buckle in a child restraint system to "[m]eet the requirements of S4.3(d)(2) of FMVSS No. 209," which reads:

      A buckle designed for pushbutton application of buckle release force shall have a minimum of 452 mm with a minimum linear dimension of 10 mm for applying the release force, or a buckle designed for lever application of buckle release force shall permit the insertion of a cylinder 10 mm in diameter and 38 mm in length to at least the midpoint of the cylinder along the cylinder's entire length in the actuation portion of the buckle release. A buckle having other design for release shall have adequate access for two or more fingers to actuate release.

    Since your buckle requires a sliding action to activate the buckle release, we consider your buckle release to be designed for slide application rather than pushbutton or lever application. Thus, your buckle release falls under the "other design for release" category.

    Under the last sentence of S4.3(d)(2), a buckle having other design for release must have adequate access for two or more fingers to actuate release. You claim that your buckle release meets this requirement. We agree. All of our staff working on this response were able to place two fingers into your slide action release button to actuate release. Thus, we have determined that your buckle release meets the requirement of S4.3(d)(2).

    If you have any further questions, please feel free to contact Mr. Dion Casey of this office at (202) 366-2992.

    Sincerely,

    John Womack
    Acting Chief Counsel
    ref:213#209
    d.4/10/01



2001

ID: 2284y

Open

Mr. Diana L.D. Regan
43 Rockwood Drive
Larchmont, NY 10538

Dear Ms. Regan:

This responds to your letter seeking an interpretation of how our laws and regulations would apply to a product you have invented. Your product is designed to alter the alignment of the webbing of a lap/shoulder safety belt to improve the fit of the safety belt on children weighing between 40 and 85 pounds. According to your letter, the product is designed to be firmly attached to the webbing of both the lap belt portion and the shoulder belt portion of the safety belt. When the product is attached, it pulls down the shoulder belt portion of the safety belt so that it will pass across the child's chest and shoulder, instead of the neck. You asked whether this product would be considered a safety belt or a child restraint system for the purposes of our safety standards. The answer is that your product would not be considered to be either for the purposes of our standards, as explained below.

Section S3 of Standard No. 209, Seat Belt Assemblies (49 CFR 571.209) defines a "seat belt assembly" as "any strap, webbing, or similar device designed to secure a person in a motor vehicle in order to mitigate the results of any accident, including all necessary buckles and other fasteners, and all hardware designed for installing such seat belt assembly in a motor vehicle." (Emphasis added). Your device is not itself designed to secure a child in a motor vehicle. Instead, your device is designed to alter the alignment of the existing safety belt in the vehicle, so that the existing safety belt system in the vehicle can be adjusted to better fit a child occupant. Therefore, your device would not be a "seat belt assembly" within the meaning of Standard No. 209.

Section S4 of Standard No. 213 (49 CFR 571.213) defines a "child restraint system" as "any device except Type I or Type II seat belts, designed for use in a motor vehicle or aircraft to restrain, seat, or position children who weigh 50 pounds or less." (Emphasis added). As explained above, your device is not a Type I or Type II seat belt. Additionally, for the reasons explained above, your device is not itself designed to restrain, seat, or position children. The restraining of the child would be accomplished entirely by the safety belt system already installed in the vehicle. Your device would simply alter the alignment of that safety belt system for the child. Therefore, your device would not be a "child restraint system" within the meaning of Standard No. 213.

You also asked for information regarding your responsibilities as the manufacturer and seller of this product. I have enclosed an information sheet we have prepared for new manufacturers of motor vehicle equipment. I have also enclosed copies of a February 11, 1988 letter to Mr. Roderick A. Boutin and a November 22, 1988 letter to Ms. Claire Haven. These two letters describe how products intended to enhance the comfort of safety belt wearers could be affected by our laws and regulations. The information sheet explains how to obtain copies of our laws and regulations. I hope this information is helpful.

Sincerely,

Stephen P. Wood Acting Chief Counsel

Enclosures

/ref:208#209#213 d:2/l4/90

1970

ID: 22851ogm

Open



    Ms. Shannon Dunn
    Lorensen Toyota
    P.O. Box 427
    Old Saybrook, CT 06475



    Dear Ms. Dunn:

    This responds to your letter requesting information regarding modification of a 2001 Toyota Avalon for a passenger with a urologic condition. Your letter, which was accompanied by a letter from the vehicle owner's physician, indicates that the owner is unable to wear a seat belt due to the aforementioned disability. You request permission to remove or disable a warning light that illuminates whenever the front passenger seat is occupied while the seat belt for that seating position remains unfastened.

    I would like to begin by explaining that the National Highway Traffic Safety Administration 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 they can be offered for sale. After the first sale of the vehicle, manufacturers, distributors, dealers, and repair businesses are prohibited from "knowingly making inoperative" any device or element of design installed on or in a motor vehicle in compliance with an applicable standard. In general, the "make inoperative" prohibition (49 U.S.C. 30122) requires businesses that 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 $5,000 per violation.

    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. Paragraph S7.3 of Standard No. 208 requires a seat belt warning system with a warning light and an audible signal to warn when the driver's lap belt is not fastened. However, S7.3 applies only to the driver's seating position and does not apply to the passenger seating position.

    The seat belt warning light for the passenger seating position is not required by Standard No. 208 or any other Federal motor vehicle safety standard. Accordingly, a manufacturer, distributor, dealer or repair business would be able to disable or remove the passenger seatbelt warning light described in your letter without violating Federal law. However, such a business could not disable the warning light applicable to the driver's seating position.

    If you have other questions or require additional information, please contact Otto Matheke of my staff at this address or by phone at (202) 366-2992.

    Sincerely,

    John Womack
    Acting Chief Counsel

    ref:VSA
    d.6/1/01



2001

ID: 2285y

Open

Mr. Victor Crisci
70 Lenox Road
Wayne, NJ 07470

Dear Mr. Crisci:

This is in response to the telephone call you made to me after receiving the interpretation of Motor Vehicle Safety Standard No. l08 furnished you on August 7, l989.

To summarize, you wished to know whether a "safety light flasher" to be installed on your motorcycle would conflict with DOT regulations. This device flashes a motorcycle headlamp between upper and lower beam for 2 to 4 seconds, then returns the light to the beam it was in when the flasher was activated. If the headlamp is off, the flasher will turn it on and initiate an identical flash cycle. We advised you that Standard No. l08 allowed flashing headlamps only on vehicles equipped with turn signals (S5.5.10(c)), and that the provision applicable to motorcycle headlamps (S5.5.l0(d)) permitted only headlamp modulators, which must provide varying intensities within a single beam, and not between beams.

You have questioned this interpretation because motorcycles are required to be equipped with turn signals. We have reviewed Standard No. l08, and have concluded that your device is prohibited, albeit for reasons other than section S5.5.10(c). Section S5.5.1 requires that the means for switching between upper and lower beams conform to one of two SAE Recommended Practices, either J564a, or J565b. The first requires that the switch be operated by a simple movement of the driver's hand or foot. We do not interpret this as allowing automatic switching between upper and lower beams. Although the second provides for automatic switching, it is in the context of changing the upper beam to the lower one when oncoming traffic is approaching. Your device does not contain this feature.

We must also bring your attention to section S5.1.3. This section prohibits the installation of supplementary lighting devices if they impair the effectiveness of lighting equipment that is required by Standard No. l08. In our opinion, a device that switches between upper and lower beam at times when the headlamp is illuminated would impair the roadway illumination that the headlamp is intended to supply. In addition, if the flasher caused lamps other than the headlamp to flash (such as the taillamp, which must be activated when the headlamp is steady-burning), that are required to be steady-burning in use, a noncompliance with section S5.5.11(e) would result.

Sincerely,

Stephen P. Wood Acting Chief Counsel

/ref:l08 d: 2/l4/90

1970

ID: 22874.ztv

Open



    Mr. Markus Evans
    PMA-Racine
    Racine Operations
    1733 90th Street
    Sturtevant, WI 53177



    Dear Mr. Evers:

    This is in reply to your fax of March 13, 2001, to Dave Coleman of this agency asking for an interpretation regarding whether it is necessary for a certain product to comply with Federal Motor Vehicle Safety Standard No. 121, Air Brake Systems.

    You state that Putzmeister is "one of the world's largest manufacturer of truck-mounted concrete pumps." You ask whether a contemplated model would need to be equipped with an anti-lock braking system (ABS), or "can it be regarded as construction equipment without need to be equipped with ABS?"

    Your question indicates that you are familiar with the long-standing interpretations of this agency that mobile construction equipment vehicles are not motor vehicles which must comply with the Federal motor vehicle safety standards. We are currently reviewing our position in this matter. I enclose a copy of a letter that we sent on March 21, 2001, to the Colorado State Patrol, as the latest expression of our opinion.

    In brief, our interpretations have been in compliance with a Federal District Court decision of 1978. We are now concerned that mobile construction equipment may be using the public roads with greater frequency than the equipment that the Court decided were not motor vehicles subject to our jurisdiction. A later Supreme Court decision may provide us with a basis for deciding that mobile construction vehicles are, in fact, motor vehicles. If we decide that they are motor vehicles, your planned product might have to be manufactured with ABS and to comply with all other relevant Federal motor vehicle safety standards as well.

    However, we have not yet undertaken the analysis needed to address the issue. This means that your planned product need not be equipped with ABS. In the event that we decide that mobile construction equipment vehicles are motor vehicles, we will announce it publicly, and would establish an effective date that will accommodate the realities of manufacturing mobile construction equipment.

    If you have any questions, you may call Taylor Vinson of this Office.

    Sincerely,

    John Womack
    Acting Chief Counsel

    Enclosure
    ref:571
    d.4/19/01



2001

ID: 22892twobarsfromonerod

Open



    Mr. Chris Tinto
    Director, Technical & Regulatory Affairs
    Toyota Motor North America, Inc.
    Washington Office
    1850 M Street, NW, Suite 600
    Washington, DC 20036



    Dear Mr. Tinto:

    This responds to your March 19, 2001, letter concerning Federal Motor Vehicle Safety Standard No. 225, "Child Restraint Anchorage Systems" (49 CFR '571.225). The standard requires the installation of child restraint anchorage systems consisting of two lower anchorages and a top tether anchorage. You ask about the configuration requirements specified in S9.1 for the lower anchorages.

    Toyota would like to form the two lower anchorages by bending two bar segments from a long, continuous 6 millimeter (mm) diameter rod. According to the diagram you attached to your letter, each bar segment to which a child restraint would latch onto is approximately 35 mm long and parallel to the main portion of the rod. The rod is bent such that the bar segments protrude about 67 mm (about 2.5 inches) from the rest of the rod. You ask if forming the two lower anchorages from one continuous piece of rod would be permitted if the anchorages were so configured.

      Our answer is yes, the bar segments are permitted to be configured as you described.

    S9.1.1 of Standard No. 225 specifies that "[t]he lower anchorages shall consist of two bars that . . .  [a]re not more than 40 mm in length . . . ." (1)  Your question raises the issue of whether your anchorages consist of two bars. The bars are formed from one continuous rod. However, because the bars protrude 67 mm from the main portion of the rod and the part of the rod between the two bars would be in the seat bight and not visible to the consumer, two distinct bars are presented to consumers. A consumer is not likely to be confused about where a child restraint should be attached. We thus conclude that the lower anchorages consist of two bars, each of which is not more than 40 mm in length. We could have concluded otherwise had the bars not protruded 67 mm (or some other substantial distance) from the rest of the rod. For example, if they protruded only 10 mm from the rest of the rod, it would not be apparent that two bars are present. An anchorage system with such a design would not meet S9.1.1 of the standard.

    I hope this information is helpful. If you have further questions, please contact Deirdre Fujita of my staff at (202) 3366-2992.

    Sincerely,

    John Womack
    Acting Chief Counsel

    Ref:225
    d.7/30/01





    1. 1 The agency has received petitions for reconsideration asking that the maximum limit ofm 40 mm be deleted or increased to 50 mm. See Docket No. 98-3390, Notice 2. NHTSA will be responding to the petitions in the near future.



2001

ID: 22894.ztv

Open



    Mr. Tadashi Suzuki
    Manager, Regulation & Homologation
    Stanley Electric Co., Ltd.
    2-9-13, Nakameguro, Meguro-ku
    Tokyo 153-8636
    Japan



    Dear Mr. Suzuki:

    This is in reply to your letter of March 12, 2001, asking for an interpretation of S7.8.5 of Federal Motor Vehicle Safety Standard No. 108.

    S7.8.5 specifies that "When activated in a steady-burning state, headlamps shall not have any styling ornament or other feature, such as a translucent cover or grill, in front of the lens." This prohibition was developed when the only headlamps available were sealed beam units. You state that the majority of headlamps today are individually designed for specific vehicles and you believe that the performance of these headlamps can be controlled so that if they have additional parts, the headlamp designer has complete control over them. Therefore "banning of styling parts for all kinds of headlamps has no meaning to safety." For this reason, you "believe S7.8.5 is not applicable to headlamps designed for specific vehicle models."

    We do not agree with your interpretation. S7.8.5 contains no qualifying language; it applies to all headlamps. However, S7.8.5 does not prohibit use of a "styling ornament or other feature" in the lens itself, or behind the lens, if the headlamp with these features is certified as complying with Standard No. 108.

    We also call your attention to S5.1.3 which, in effect, prohibits additional motor vehicle equipment that impairs the effectiveness of lighting equipment required by Standard No. 108. Any styling feature or other part of a motor vehicle that is in front of the lens of a headlamp in use has the potential to impair the light output of the lamp. Even if there is no impairment initially, grills and covers prevent the lamps from being cleaned. Covers themselves are susceptible to accumulations of dirt and moisture on their inner surface. These accumulations on the outer surface of the headlamp lens can cause glare and reduction in roadway illumination

    (S5.1.3 would also prohibit, as original equipment, covers over required lighting equipment other than headlamps, for the same reason of impairment). While our laws do not prohibit the sale of lamp covers in the aftermarket, their installation would create a noncompliance with Standard No. 108. In that instance, there would be a violation of 49 U.S.C. 30122(b) if the covers were installed by a manufacturer, dealer, distributor, or motor vehicle repair business.

    Sincerely,

    John Womack
    Acting Chief Counsel

    ref:108
    d.5/9/01



2001

ID: 22898ogm

Open



    Mr. Ray Metzger
    KayRay Products
    P.O. Box 6787
    Spring Hill, FL 34611



    Dear Mr. Metzger:

    This responds to your letter concerning a device your company manufactures known as the "Relax-A-Strap." As indicated by the sample of the device enclosed with your letter, the "Relax-A-Strap" is intended to slide over the shoulder portion of a lap and shoulder seat belt and position this portion of the belt so it does not contact the neck or collarbone of vehicle occupants. According to the instructions accompanying the device, the "Relax-A-Strap" allows an occupant to position the shoulder belt in the manner they desire and then use the device to prevent the belt from being retracted against their body. You request that the agency advise you as to whether the "Relax-A-Strap is safe "for the general consumer to use as per instructions and illustrations."

    The National Highway Traffic Safety Administration (NHTSA) has the authority to issue Federal motor vehicle safety standards for new motor vehicles and new items of motor vehicle equipment. The agency does not approve, certify or endorse any vehicles or equipment. Instead, manufacturers are required to certify that their vehicles and equipment meet all applicable standards. The following represents our opinion based on the facts provided in your letter.

    The agency cannot provide you with the opinion that you seek. There is currently no Federal motor vehicle safety standard that would apply to your product (FMVSS). We do have a standard (FMVSS No. 209, Seat belt assemblies) that sets forth requirements for new seat belt assemblies. However, since your product would not be installed as part of a new seat belt assembly, the standard would not apply.

    Your product is apparently intended to restrict the operation of the retractor attached to the shoulder portion of a Type II seat belt and allow the shoulder belt to move away from the neck and shoulder of the occupant. It functions as a seat belt positioner. At this time, NHTSA does not have a standard or regulation for seat belt positioners. However, in a notice of proposed rulemaking (NPRM) published in the Federal Register on August 13, 1999 (64 FR 44164)(copy enclosed), we proposed to adopt a consumer information regulation for seat belt positioners. In the NPRM, we proposed to define "seat belt positioner" as "a device, other than a belt-positioning seat, that is manufactured to alter the positioning of Type I and/or Type II belt systems in motor vehicles." Among other things, the NPRM proposed to require the devices to be labeled as not suitable for children of a certain age, e.g., under 6 years old, or a certain height.

    It appears that the Relax-A-Strap would be considered a seat belt positioner under the proposed definition. Assuming we issue a final rule adopting a consumer information regulation, the rule's definition of "seat belt positioner" could be the same as the definition in the NPRM or a logical outgrowth of the proposed definition. We anticipate issuing a final decision on the NPRM in the near future.

    While no FMVSS currently applies to your product, your device is considered to be an item of motor vehicle equipment. As a manufacturer of motor vehicle equipment, you are subject to the requirements of 49 U.S.C. 30118-30121 concerning the recall and remedy of products with safety related defects. I have enclosed an information sheet that briefly describes those and other manufacturer responsibilities. In the event you or NHTSA determines that your product contains a safety-related defect, you would be responsible for notifying purchasers of the defective equipment and remedying the problem free of charge. We encourage you to undertake a complete evaluation of your product to determine if its use would degrade the performance of safety belts.

    In addition, manufacturers, distributors, dealers, and motor vehicle repair businesses are subject to 49 U.S.C. section 30122, which prohibits them from installing the device if the installation "makes inoperative" the vehicle's compliance with any safety standard. It appears unlikely from the nature of your product that it would be placed in vehicles by commercial businesses instead of consumers. However, if your product were to be installed by a commercial business, it must ensure that its installation does not compromise the safety protection provided by the vehicle belt system. The prohibition of section 30122 does not apply to the actions of vehicle owners in adding to or otherwise modifying their vehicles or items of motor vehicle equipment.

    I hope this information has been helpful. If you have any other questions, please contact Otto Matheke of my staff at this address or by phone at (202) 366-5253.

    Sincerely,

    John Womack
    Acting Chief Counsel

    Enclosure
    ref:208
    d.9/13/01



2001

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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