Skip to main content

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 311 - 320 of 16510
Interpretations Date
 search results table

ID: 7271-2

Open

Mr. Ray Wyatt
5207 N. 33rd St.
Phoenix, AZ 85018

Dear Mr. Wyatt:

This letter responds to your inquiry regarding the conversion of race cars into cars for use on the public roads. I apologize for the delay in this response. As I understand the question, based upon your letter and subsequent telephone conversations with David Elias of my staff, you intend to convert a race car designed for use solely on a race track into a vehicle that can be used on the public roads. I am pleased to have this opportunity to explain our regulations for you.

NHTSA has authority to regulate the manufacture and sale of new motor vehicles and items of motor vehicle equipment. The National Traffic and Motor Vehicle Safety Act (the Safety Act) defines "motor vehicle" as one "manufactured primarily for use on the public streets, roads, and highways... ." 15 U.S.C. 1391(3). The Safety Act requires every manufacturer to certify that each of its new motor vehicles complies with all applicable safety standards (15 U.S.C. 1403) and prohibits any person from manufacturing, importing, or selling any new vehicle that does not comply with all applicable safety standards (15 U.S.C. 1397(a)(1)(A)). However, these requirements apply only until the first sale of the vehicle for purposes other than resale (15 U.S.C. 1397(b)(1)).

After that first purchase, the Safety Act prohibits any manufacturer, distributor, dealer, or repair shop from "rendering inoperative" any device or element of design installed in or on the vehicle in compliance with an applicable safety standard (15 U.S.C. 1397(a)(2)(A)). Manufacturers, distributors, dealers, and repair shops are thus free to modify vehicles after the first purchase of the vehicle. However, these entities are prohibited from performing any modification that would result in the vehicle no longer complying with the safety standards. In addition, unlike the situation with new vehicles, manufacturers, distributors, dealers, and repair shops that modify used motor vehicles are not required to certify that the vehicle complies with all applicable safety standards.

Hence, if these race cars had ever been certified as motor vehicles complying with the safety standards, your conversions would be subject only to the "render inoperative" prohibition of the Safety Act. Your situation appears to be different, however, in that you wish to place a race car, which had never been certified, on the public roads. Race cars are not "motor vehicles" within the meaning of the Safety Act, so no party has ever certified that these vehicles meet the applicable safety standards. This means that the first introduction into interstate commerce or sale of these converted race cars as "motor vehicles" for the purposes of the Safety Act would be by you after you perform the conversion. Accordingly, you would be legally responsible for certifying that the converted race cars comply with all applicable safety standards, in accordance with the regulations set forth in 49 CFR Part 567.

As a manufacturer of a new motor vehicle under the provisions of the Safety Act, you would also be subject to the notification and remedy requirements of the Safety Act (15 U.S.C. 1411 et seq.) and 49 CFR Parts 573 and 577. This means that if either you or the agency determined that a non-compliance with a safety standard or safety related defect exists in your converted vehicles, you, as the manufacturer, would be required to notify purchasers of the determination and remedy the problem without charge to the purchaser. I have enclosed for your convenience an information sheet for new manufacturers that gives a brief overview of our laws and regulations and explains how to get copies of those regulations.

You may also want to contact the State of Arizona to learn whether there are any state laws or regulations that would affect the conversion of a racing car to a passenger automobile, and its sale and registration in the state, as well as the insurance ramifications of such a conversion and sale.

If you have any further questions or need any further information on this subject, please contact David Elias of my office at (202) 366-2992.

Sincerely,

Paul Jackson Rice Chief Counsel

Enclosure

ref:VSA#567 d:10/14/92

1992

ID: 7282

Open

The Honorable Dave Durenberger
United States Senate
Washington, D.C. 20510-2301

Dear Senator Durenberger:

Thank you for your letter of April 28, 1992, concerning a product developed by your constituent, McNaughton Incorporated of Minneapolis, Minnesota. The product is a device to prevent a child from opening the buckle of a safety belt without adult assistance. You requested information on any regulations that pertain to this product.

The agency has received inquiries about similar products in the past. While we understand parents' concerns that young children should not be able to easily get out of a safety belt, we have significant reservations about these types of products because they could significantly increase the difficulty of using the buckle release and thus hinder a person attempting to release the belt in an emergency. I am enclosing an August 6, 1986, letter from NHTSA's Chief Counsel to Ms. Ann Boriskie. As this letter explains, your constituent's product could not be installed by a commercial entity without violating Federal law. In addition, installation of your constituent's product by any person would be inconsistent with this agency's policy to encourage vehicle owners not to remove or otherwise tamper with vehicle safety equipment.

You also asked for information on how McNaughton Incorporated could become involved in the national safety belt campaign. The Agency is currently working with a variety of public and private sector organizations to increase safety belt use to 70 percent by the end of 1992. The strategy focuses on increased law enforcement efforts coupled with aggressive community-based public information.

There are many ways McNaughton can support these efforts. They can consider developing and implementing an in-house safety belt education program targeting their employees or applying for the 70 percent Honor Roll Program. They might be interested in supporting community awareness initiatives that promote the campaign, including the posting of billboards and the inclusion of safety belt messages in their on-going advertising. An expanded list of ideas is attached. If McNaughton Incorporated is interested in additional campaign information, they can contact Susan Gorcowski, Office of Occupant Protection, (202) 366-2683.

I appreciate your interest in the safety of motor vehicles and hope this information is helpful.

Sincerely,

Jerry Ralph Curry

Enclosures

ref:209 d:5/28/92

1992

ID: 7288

Open

Mr. Peter K. Brown
President, KC HiLites, Inc.
Avenida de Luces
Williams, AZ 86046-0155

Dear Mr. Brown:

This responds to your letter of May 6, 1992, with respect to your "quad beam" product. You point out that, in normal operation, the headlamp lower beam is extinguished when the upper beam is activated; "quad beam" ensures that the lower beam remains activated when the upper beam is used. We advised you on July 2, 1990, that installation of "quad beam" would be acceptable on certain types of four-lamp headlighting systems. You have now asked whether the device can "legally be used on two headlamp systems, either sealed beam or replaceable bulb type?"

Paragraph S5.5.9 of Federal Motor Vehicle Safety Standard No. 108 states that "[except for certain four-lamp systems enumerated in S5.5.8] the wiring harness or connector assembly of each headlamp system shall be designed so that only those light sources intended for meeting lower beam photometrics are energized when the beam selector switch is in the lower beam position, and that only those light sources intended for meeting upper beam photometrics are energized when the beam selector switch is in the upper beam position." This would preclude installation of the "quad beam" on two lamp headlamp systems.

Sincerely,

Paul Jackson Rice Chief Counsel

ref:108 d:6/15/92

1992

ID: 7289

Open

Herr Tilghman Spingler
Robert Bosch GmbH
Dept K2/ELS 11
Postfach 13 42
D-4710 Reutlingen
Germany

FAX (49)7121-1792

Dear Herr Spingler:

This responds to your FAX of July 9, 1992, asking for a "quick answer" to your question regarding the aim of replaceable bulb headlamps.

Specifically, you ask whether the requirement of "a vertical aim range of +/-4 degrees and a horizontal aim range of +/- 2.5 degrees" means "that a headlamp has to meet both ranges in addition, i.e. 2.5 degrees horizontal at a full range of 4 degrees vertical and vice-versa?"

The requirements to which you refer are found in paragraphs S7.7.3 and S7.7.4 of Standard No. 108. Paragraph S7.7.3 requires in pertinent part that "When a headlamp system is tested in a laboratory, the range of its vertical aim shall be not less than +/- 4 degrees from the nominal correct aim position for the intended vehicle application." Paragraph S7.7.4 requires that "When a headlamp system is tested in a laboratory, the range of its horizontal aim shall be not less than 2.5 degrees from the nominal correct aim position for the intended vehicle application."

We call your attention to paragraph S7.7.2.2. With respect to headlamps aimed by moving the reflector relative to the lens and headlamp housing, or vice versa, the paragraph requires conformance with respect to the applicable photometrics "with the lens at any position relative to the reflector within the aim range limits of paragraph S7.7.3 and S7.7.4 or any combination." This clearly indicates that when a replaceable bulb headlamp that is aimable as provided in S7.7.2.2 is adjusted to the extreme of its range, and at all positions in between, it must continue to meet all applicable photometrics. We interpret this requirement as also applying to headlamp systems of replaceable bulbs subject to S7.7.3 and S7.7.4, but aimable in a manner outside S7.7.2 (such as movement of the entire headlamp, rather than its lens or reflector).

I hope that this answers your question. Please note that under recent amendments to Standard No. 108, paragraphs S7.7.2.2, S7.7.3, and S7.7.4 have been renumbered respectively S7.8.2.2, S7.8.3, and S7.8.4.

Sincerely,

Paul Jackson Rice Chief Counsel

ref:108 d:8/3/92

1992

ID: 7293

Open

Mr. Timber Dick
Safeline Children's Products Co.
5335 W. 48th, Suite 300
Denver, CO 80212

Dear Mr. Dick:

This responds to your letter concerning Standard No. 213, "Child Restraint Systems," and the Sit'n'Stroll child restraint system you manufacture. The restraint is designed to be rear-facing for children weighing up to 25 pounds.

Your letter relates to our April 22, 1992 interpretation to Mr. Mark Sedlack regarding rear-facing restraints for children weighing up to 25 pounds. In that letter, I stated that under Standard No. 213, such a restraint could be tested with either the six-month-old or the three-year-old dummy in the agency's compliance tests. I further stated that the restraint must physically permit the dummies to be positioned in accordance with the procedures in S6.1.2.3.1 of Standard No. 213. If the restraint cannot permit the dummies to be so positioned, the restraint cannot be recommended for children weighing more than 20 pounds.

You ask whether we would consider the Sit'n'Stroll as permitting the proper positioning of the three-year-old dummy. The photographs enclosed with your letter show the dummy in the restraint with its legs at a right angle to the torso. The backs of the dummy's heels rest on the standard seat assembly's seat back, about five inches below the top of the seat back.

At the outset, I must note that NHTSA cannot provide you with an unqualified answer on whether your restraint accommodates the three-year-old dummy, because we do not know the details of your design. However, we can offer general guidance on the positioning of the dummy's legs, an aspect of the dummy's positioning that is of particular concern to you.

S6.1.2.3.1(b) and (d) of Standard No. 213 specify the procedure for positioning the three-year-old dummy's legs in the child restraint. S6.1.2.3.1(b) states: "... Extend the legs of the dummy as far as possible in the forward horizontal direction, with the dummy feet perpendicular to the centerline of the lower legs." S6.1.2.3.1(d) states: "...[R]otate each dummy limb downwards in the plane parallel to the dummy's midsagittal plane until the limb contacts a surface of the child restraint system or the standard seat .... Position the limbs, if necessary, so that limb placement does not inhibit torso or head movement in [the standard's dynamic] tests...."

Based on the photographs you enclosed, the Sit'n'Stroll permits the dummy's legs to be positioned as specified in S6.1.2.3.1(b). That is, the legs are extended "as far as possible" in the forward horizontal direction. The standard does not specify whether "forward" is relative to the standard seat assembly or to the child. However, interpreting "forward" as relative to the seat assembly would have the effect of disallowing the use of the three-year-old dummy to test a rear-facing restraint, since the positioning procedures would be inappropriate for the restraint. In the absence of language in the standard to that effect, we are disinclined to so conclude. Instead, we conclude "forward" as used in S6.1.2.3.1(b) is relative to the child.

Although the Sit'n'Stroll permits the legs to be positioned in accordance with S6.1.2.3.1(b), under S6.1.2.3.1(d) the leg placement must not inhibit torso or head movement during the dynamic tests of the standard. It does not appear that the dummy's legs would inhibit torso or head movement due to the forward (relative to the seat assembly) movement of the torso and head in the dynamic tests. However, we cannot make a definite determination based on the information in your letter.

Please note that it is likely that NHTSA will propose amending Standard No. 213 such that a child restraint designed for use with children weighing up to 25 pounds would be tested with a new array of child test dummies, such as the 9-month-old dummy described in subpart J of our regulations (49 CFR Part 572). It is possible that a future amendment to the standard could specify that a new dummy, such as the 9-month-old, will be used instead of the 3-year-old dummy to test such a child restraint. NHTSA has announced its intention to consider rulemaking on incorporating new dummies, including the 9- month-old, in Standard No. 213 compliance tests. This intention was discussed at length in NHTSA's "Planning Document on Potential Standard 213 Upgrade," July 1991.

I also would like to note our concern with the ability of your restraint to meet Standard No. 213's occupant excursion requirement (S5.1.3.2). S5.1.3.2 states: "In the case of each rear-facing child restraint system, [in a dynamic test] ... no portion of the target point on either side of the dummy's head shall pass through the transverse orthogonal planes whose intersection contains, the forward-most and top- most points on the child restraint system surfaces ...." It appears from your photograph that the restraint's seat back might be too low to enable the restraint to meet S5.1.3.2 in a dynamic test. One means of avoiding any potential compliance problem with the excursion requirement would be for your company to raise the height of the seat back on this child restraint system.

I hope this information is helpful.

Sincerely,

Paul Jackson Rice Chief Counsel

ref:213 d:8/18/92

1992

ID: 7297

Open

Mr. Charles Henry, Jr.
537 Rock Springs Road
Atlanta, Georgia 30324

Dear Mr. Henry:

This responds to your letter that requested information about how the laws and regulations administered by this agency would apply to a device you wish to market. Since your device is an item of "motor vehicle equipment," it would be subject to our jurisdiction as explained below.

In your letter, you stated that when installed in a motor vehicle, your device would automatically shut down the "lighting circuits of an automobile or vehicle" within a prescribed time period after the motor is turned off. In a telephone conversation with Dorothy Nakama of my staff, you explained that the lights controlled by the device are the headlights and tail lights.

By way of background information, NHTSA has no authority to approve, endorse or offer assurances of compliance for any motor vehicle or item of motor vehicle equipment. Instead, the National Traffic and Motor Vehicle Safety Act of 1966 ("Safety Act," 15 U.S.C. 1381 et seq.) authorizes this agency to regulate "motor vehicles" and "motor vehicle equipment." Section 102(4) of the Safety Act (15 U.S.C. 1391(4)) defines "motor vehicle equipment," in part, as:

any system, part, or component of a motor vehicle as originally manufactured or any similar part or component manufactured or sold for replacement or improvement of such system part, or component or as any accessory or addition to the motor vehicle...

As an "addition" to the motor vehicle that automatically shuts off the vehicle's lights, after the motor is shut down, we would consider your device as "motor vehicle equipment."

There are no specific provisions in the safety standards that set forth requirements for devices that automatically shut off lights on motor vehicles, after the motor is shut down. Thus, your company as the manufacturer of such a device would not have to certify that the device complies with any safety standards before offering it for sale to the public.

From your letter, it appears that your device is initially intended for installation after first sale of the motor vehicle to the public, but may later be sold for installation before such sale. The addition of this device to a vehicle before the vehicle's first sale could affect the vehicle's compliance with the safety standards. NHTSA's certification regulation requires vehicle manufacturers to permanently attach a label to each of their new vehicles stating that the vehicle complies with all applicable safety standards. See 49 CFR 567.4. The certification regulation also sets forth requirements for persons who modify previously certified vehicles by adding, modifying, or substituting readily attachable components. Such persons are considered "alterers" of the previously certified vehicles. Alterers are required to leave the original manufacturer's label in place and affix an additional label identifying the alterer and stating that the vehicle, as altered, continues to comply with all applicable safety standards. See 49 CFR 567.7. As you may be aware, Federal Motor Vehicle Safety Standard No. 101; Controls and displays, specifies requirements for the illumination of motor vehicle controls and displays, and Standard No. 108; Lamps, reflective devices, and associated equipment, specifies requirements for lamps on motor vehicles.

While your letter gave no details about how this device would be installed in a vehicle, it seems highly unlikely that a device would be regarded as "readily attachable" if it is designed to automatically shut off lights on a motor vehicle, when the motor is shut down. Thus, any person that installed this device on a new vehicle before the vehicle's first sale to the public would be required to certify that the vehicle complies with all applicable safety standards, including Standards No. 101 and 108, with this device installed.

After the first sale of the vehicle to the public, certain persons who modify vehicles are subject to the prohibition in section 108(a)(2) of the Safety Act (15 U.S.C. 1397(a)(2)). That section provides that: "No manufacturer, distributor, dealer, or motor vehicle repair business shall knowingly render inoperative, in whole or in 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..."

To avoid a "rendering inoperative" violation for vehicles that comply with any of our safety standards, commercial after market installers of your device should examine any installation instructions that you may have for your device and compare those instructions with the requirements of our safety standards, to determine if installing the device in accordance with those instructions would result in the vehicle no longer complying with any of those safety standards. If the installation of your device would not result in a "rendering inoperative" of the vehicle's compliance with the safety standards, the device can be installed by manufacturers, distributors, dealers and repair shops without violating any Federal requirements.

The prohibitions of Section 108(a)(2)(A) do not apply to the actions of a vehicle owner in modifying his or her vehicle. Thus, a vehicle owner would not violate the Safety Act by installing your device even if doing so would adversely affect some safety feature in his or her vehicle.

Manufacturers of motor vehicle equipment such as your device are also subject to the requirements in sections 151-159 of the Safety Act (15 U.S.C. 1411-1419) concerning the recall and remedy of products with defects related to motor vehicle safety. The Safety Act specifies that if either your company or this agency determines that a safety-related defect exists in your device, your company as the manufacturer must notify purchasers of the safety-related defect and must either:

(1) repair the product so that the defect is removed; or

(2) replace the product with identical or reasonably equivalent products which do not have a defect.

Whichever of these options is chosen, the manufacturer must bear the full expense and cannot charge the owner for the remedy if the equipment was purchased less than 8 years before the notification campaign.

For your information, I have enclosed a copy of an information sheet for new manufacturers of motor vehicles and new motor vehicle equipment. This sheet gives a brief description of our regulations and explains how to obtain copies of those regulations. You should also be aware that state laws may apply to the use of your device. For further information on state laws, you may wish to contact the American Association of Motor Vehicle Administrators at 4600 Wilson Boulevard, Arlington, Virginia 22203.

I hope this information is helpful. Please feel free to contact Dorothy Nakama of my staff at this address or by telephone at (202) 366-2992 if you have any further questions or need additional information.

Sincerely,

Paul Jackson Rice Chief Counsel

Enclosure ref:VSA#101#108 d:8/l7/92

1970

ID: 7302

Open

The Honorable George Allen
U. S. House of Representatives
255 West Main Street, Room 102
P.O. Box 136
Charlottesville, VA 22902-0136

Dear Mr. Allen:

Thank you for your letter in support of Philatron International's request for an immediate temporary exemption from the oil resistance requirement of Federal Motor Vehicle Safety Standard 106, Brake Hoses. The National Highway Traffic Safety Administration (NHTSA) can appreciate the concern you have for distributors of Philatron's brake hoses such as your constituent, Truck Parts East.

NHTSA closely examined Philatron's request and determined that the agency cannot provide the requested exemption. The reasons underlying this conclusion are fully explained in a May 26, 1992, letter from Chief Counsel Paul Jackson Rice to Anthony D. Padgett, counsel for Philatron. In his letter, the Chief Counsel explained that Philatron, as a manufacturer of motor vehicle equipment, is not eligible to be considered for an exemption under the National Traffic and Motor Vehicle Safety Act. The Chief Counsel also concluded that a proceeding resulting from Philatron's rulemaking petition must include a full notice and comment procedure. A copy of the letter is enclosed.

I would like to clarify an aspect of our rulemaking procedures mentioned in your letter. While it is correct that the National Highway Traffic Safety Administration granted Philatron's rulemaking petition to amend Standard 106's oil resistance requirement, the agency did not inform Philatron that such an amendment would in fact be adopted. Whenever the agency grants a rulemaking petition, it states that it will subsequently decide whether to issue the requested rule based on all available information developed in the course of the rulemaking proceeding, in accordance with statutory criteria.

We hope that this information is helpful.

Sincerely,

Frederick H. Grubbe Acting Administrator Enclosure Letter Dated May 26, 1992

cc: Washington Office

ref:106 d:6/15/92

1992

ID: 7307-2

Open

Mr. William E. Lawler
Manager, Specifications
Indiana Mills & Manufacturing, Inc.
18881 U.S. 31 North
P.O. Box 408
Westfield, Indiana 46074-0408

Dear Mr. Lawler:

This responds to your letter of May 18, 1992, concerning the test requirements of Standard No. 210, Seat Belt Assembly Anchorages. Your questions concern a final rule published on December 5, 1991 (56 FR 63682) clarifying the definition of "seat belt anchorage." That final rule had the effect of requiring seat belt attachment hardware, which previously was not included within the definition of "seat belt anchorage," to comply with the requirements of Standard No. 210. Your five questions are addressed below.

The first three questions refer to a safety belt design which incorporates a retractor.

l. If a test harness is used, can one end of the harness be attached to the attachment hardware (retractor frame), or must it be attached to the retractor spool?

The use of test harnesses for Standard No. 210 testing was permitted in a final rule published April 30, 1990, and effective September 1, 1992. More specifically, the final rule specified that "material whose breaking strength is equal to or greater than the breaking strength of the webbing for the seat belt assembly installed as original equipment" be used to transfer the test loads from the body block to the anchorages during the Standard No. 210 compliance tests. The amended standard also specifies that the attachment of this material should "duplicate the geometry" of the original webbing.

The amended definition of "seat belt anchorage" explicitly states that the seat belt anchorage is

any component, other than the webbing or straps, involved in transferring seat belt loads to the vehicle structure, including, but not limited to, the attachment hardware, seat frames, seat pedestals, the vehicle structure itself, and any part of the vehicle whose failure causes separation of the belt from the vehicle structure.

If the retractor spool breaks during a crash, the safety belt will not remain attached to the vehicle. Therefore, the retractor spool is a part of the vehicle whose failure causes separation of the belt from the vehicle structure, and, under the definition set forth above, is part of the seat belt anchorage. If a test harness is used, it must be attached such that the retractor spool is tested as part of the seat belt anchorage. The harness may not be attached directly to the retractor frame, since the retractor spool would not be tested in that instance.

2. If the harness must be attached to the spool, may it be attached around the spool as opposed to being inserted into the spool?

As stated previously, Standard No. 210 specifies use of "material whose breaking strength is equal to or greater than the breaking strength of the webbing for the seat belt assembly installed as original equipment" for Standard No. 210 tests. For compliance tests, NHTSA's preference is to use the original safety belt webbing whenever possible. When this cannot be done, due to elongation or breakage of the original webbing, NHTSA's first choice is to attach substitute webbing or other material to the original webbing near the anchorage. If the substitute material cannot be attached to the original webbing, NHTSA would attach the substitute webbing directly to the retractor spool. If the substitute webbing cannot be inserted into the spool in the same manner as the original webbing, attaching the substitute webbing around the spool would most closely duplicate the geometry of the original webbing.

3. We assume it is the intent of the agency to test only the strength of the attachment hardware--not the locking mechanism of the retractor built in accordance with FMVSS 209.

The strength requirement in S4.2 of Standard No. 210 specifies that anchorages must withstand certain forces when tested under specified conditions. Under S4.2.3, permanent deformation or rupture of a seat belt anchorage or its surrounding area is not considered to be a failure, if the required force is sustained for the specified time. If breakage of the locking mechanism (a part of the anchorage because it is "involved in transferring seat belt loads to the vehicle structure") caused separation of the belt from the vehicle structure, such breakage would be a failure of the Standard No. 210 test, as the anchorage would not have withstood the test forces. However, if the locking mechanism broke or released during the test without allowing the webbing to separate from the vehicle structure, the agency would not consider it a failure of the strength requirement test, since the belt would still be anchored to the vehicle structure.

4. A commonly used design is the "cable buckle". The buckle assembly is positioned in convenient reach of the seat occupant by attaching the buckle to a cable by a method called swaging. The attachment hardware consists of a flat end containing a hole for an attaching bolt and a ferrule which is swaged to the cable. The ferrule and the flat end are made in one piece. Please confirm that the attachment ferrule bolted to the seat/vehicle is what is required to withstand the forces dictated by FMVSS 210; separation of the cable from the ferrule would not constitute malfunction of the test harness and not non-compliance to FMVSS 210.

In the December 5, 1991 final rule, the agency stated that "the definition of seat belt anchorage included only the attachment points of the seat belt, and not the webbing, straps, or similar device, or the buckles which comprise the seat belt itself." For this design, the cable is a "similar device" to seat belt webbing, and would be considered part of the seat belt, not the anchorage. If the cable broke, the agency would consider that an incomplete test, just like breakage of webbing. However, it would be a failure of the Standard No. 210 test if the cable pulled out of the ferrule, since such pulling out would result from a failure of the ferrule rather than a broken cable.

5. Please confirm that the test harness could delete the buckle mechanism and attach directly to the upper end of the cable in the cable/ferrule assembly.

The answer to this question is yes. As stated previously, buckles are part of the seat belt, not the anchorage, and therefore, are not subject to the strength requirement of Standard No. 210.

I hope you find this information helpful. If you have any other questions, please contact Mary Versailles of my staff at this address or by phone at (202) 366-2992.

Sincerely,

Paul Jackson Rice Chief Counsel ref:210 d:7/23/92

1992

ID: 7322

Open

Mr. Douglas Berg
President
Ascend Productions
9823 Lake Avenue
Cleveland, Ohio 44102

Dear Mr. Berg:

This responds to your letter requesting that the National Highway Traffic Safety Administration provide "recognition and support" for your item of motor vehicle equipment, the "Hazard Helper Safety Sign." You explained that this reversible device attaches to the driver's window and displays either a help needed symbol (a stick figure with extended arms and legs) or a hazard alert symbol (a triangle). Your sales literature indicates that the help needed symbol is intended to be displayed in the event of medical emergencies, mechanical breakdown, having a flat tire, or being stuck in snow or being out of fuel. The hazard alert symbol is intended to be displayed for going for gasoline, doing roadside repairs, resting, or awaiting known assistance.

As discussed below, this agency does not recognize, support or otherwise endorse particular products. Moreover, based on the information provided with your letter, it appears that your device would not comply with certain provisions of Federal Motor Vehicle Safety Standard No. 125, Warning Devices (49 CFR 571.125, copy enclosed).

By way of background information, the National Traffic and Motor Vehicle Safety Act (15 U.S.C. 1381 et seq., the "Safety Act") gives this agency the authority to issue safety standards applicable to new motor vehicles and new items of motor vehicle equipment. We have exercised this authority to establish Standard No. 125, Warning Devices. The Safety Act provides that no person shall "manufacture for sale, sell, offer for sale, or introduce or deliver for introduction in interstate commerce, or import into the United States" any new motor vehicle or new item of motor vehicle equipment unless the vehicles or equipment comply with the applicable standard. (See 15 U.S.C 1397(a)(1)(A).) NHTSA has no authority under the Safety Act to approve, certify, or otherwise endorse any commercial product. Instead, the Safety Act establishes a self-certification process under which each manufacturer is required to certify that each of its products meets all applicable Federal Motor Vehicle Safety Standard. (See 15 U.S.C. 1403.) I am enclosing a general information sheet explaining NHTSA's regulations.

Section S3 of Standard No. 125 specifies that the standard "applies to devices, without self-contained energy sources, that are designed to be carried in motor vehicles, and used to warn approaching traffic of the presence of a stopped vehicle, except for devices designed to be permanently affixed to the vehicle." (Emphasis added.) Your device has no self-contained energy source, is designed to be carried in motor vehicles, and is not permanently affixed to the vehicle. Another condition set forth in S3 is that the device must be designed to be used to "warn approaching traffic of a stopped vehicle." Devices that are not intended to warn approaching traffic of a stopped vehicle, but only to alert passing traffic of the stopped vehicle's need for assistance, are not subject to Standard No. 125. An example of such a device would be a "HELP" message printed on a folding cardboard sunshade.

The "help needed" portion of your device appears to be designed to function in the same manner as other non-warning devices, i.e., it does not appear to be intended to warn approaching traffic of a stopped vehicle, but to alert passing traffic that the stopped vehicle needs assistance. This portion of the device would therefore not be subject to Standard No. 125.

However, the "hazard alert" portion of your device does appear to be intended to warn approaching traffic of a stopped vehicle, and must therefore comply with all of the requirements of Standard No. 125. From the enclosed copy of the standard you will see that some of the specific requirements with which your device must comply include minimum size, durability, material, container, labeling, configuration, color, reflectivity, luminance, and stability. From the information you provided with your letter, it appears that your device would not comply with several of these requirements.

Please be aware that violations of Safety Act provisions are punishable by civil fines of up to $1,000 for each violation of a safety standard. In addition, the Act requires manufacturers to remedy their products if they fail to comply with any applicable safety standards.

I hope this information is helpful. If you have any further questions about NHTSA's safety standards, please feel free to contact Marvin Shaw of my staff at this address or by telephone at (202) 366-2992.

Sincerely,

Paul Jackson Rice Chief Counsel Enclosure

Ref:125 d:7/28/92

1992

ID: 7323

Open

Mr. Kevin B. Brown
EG&G Idaho, Inc.
P.O. Box 1625
Idaho Falls, ID 83415-4103

Dear Mr. Brown:

This responds to your letter concerning 49 CFR 567 requirements for intermediate or final stage manufacture vehicle labeling. I apologize for the delay in responding. You stated in your letter that EG&G Idaho, as prime contractor for the Department of Energy, Idaho Field Office, procures and maintains all government-owned vehicles, and occasionally procures truck chassis purchased through the General Services Administration for subsequent mounting of service bodies.

I am pleased to have this opportunity to explain our regulations to you. Before addressing the specific issues raised in the letter, some background information may be helpful. The National Traffic and Motor Vehicle Safety Act of 1966, as amended, 15 U.S.C., 1381-1431 (hereinafter "Safety Act") authorizes this agency to establish Federal motor vehicle safety standards for new motor vehicles and items of motor vehicle equipment. NHTSA, however, does not approve motor vehicles or motor vehicle equipment. Rather, the Safety Act establishes a self-certification process which requires each manufacturer, in the exercise of due care, to ensure and certify that its products meet all applicable Federal safety standards. Thereafter, NHTSA periodically tests vehicles and equipment for compliance with the standards and investigates allegations of safety-related defects.

In addition, the Safety Act only requires new vehicles to comply with applicable safety standards. The only provision of the Safety Act that would apply after the first purchase of a vehicle is 15 U.S.C. 1397 (a)(2)(A), which states in relevant part that:

No manufacturer, distributor, dealer, or motor vehicle repair business shall knowingly render inoperative, in whole or in part, any device or element of design installed on or in a motor vehicle ... in compliance with an applicable Federal motor vehicle safety standard.

The first question to be answered is whether EG&G Idaho is a manufacturer. Under 49 CFR 568.3, a final-stage manufacturer is "a person who performs such manufacturing operations on an incomplete vehicle that it becomes a completed vehicle." An incomplete vehicle is "an assemblage consisting, as a minimum, of frame and chassis structure..." that requires "further manufacturing operations, other than the addition of readily attachable components... ." Readily attachable components include items such as mirrors or tire and rim assemblies. Service bodies are not "readily attachable components." Therefore, in installing service bodies on new chassis, EG&G is acting as a final-stage manufacturer under federal regulations.

49 CFR 586.6 establishes certain requirements for final-stage manufacturers, including:

(a) Each final-stage manufacturer shall complete the vehicle in such a manner that it conforms to the standards in effect on the date of the manufacture of the incomplete vehicle, the date of final completion, or a date between those two dates. ... (b) Each final-stage manufacturer shall affix a label to the completed vehicle in accordance with 567.5 of this chapter.

EG&G must attach the proper label to the completed vehicle as set out in 49 CFR 567.5(c), a copy of which is enclosed for your convenience. According to your letter, EG&G mounts bodies in accordance with the original (i.e., incomplete) manufacturer's instructions or recommendations. In that case, EG&G's certification that the completed vehicle conforms to all applicable safety standards can state simply that the vehicle has been completed in accordance with the prior manufacturer's instructions, per 567.5(c)(7).

When EG&G mounts a new body on a new chassis, the resulting vehicle is subject to the Safety Act and the certification requirements of 49 CFR 567 and 568. However, according to your letter, you also mount bodies on "existing used" chassis. 49 CFR 571.7(e) deals with combining new and used components:

When a new cab is used in the assembly of a truck, the truck will be considered newly manufactured for purposes of paragraph (a) of this section [stating that safety standards apply to all relevant motor vehicles], the application of the requirements of this chapter, and the [Safety] Act, unless the engine, transmission, and drive axle(s) (as a minimum) of the assembled vehicle are not new, and at least two of these components were taken from the same vehicle.

This means that the vehicle resulting from placing a new body upon a used chassis is a used vehicle. If, in addition to adding a new body, the operation also modifies the chassis by adding new components, such as new engine, transmission, suspension, etc., it is more likely that the resulting vehicle would be considered a new vehicle. If your vehicles produced with "existing used chassis" will incorporate the engine, transmission, and drive axle from the existing used chassis, the completed vehicles would be "used" and would not require vehicle certification. Some of our standards, however, apply to individual items of motor vehicle equipment (e.g., brake hoses and fluids, lighting equipment, tires, seatbelt assemblies, glazing). If your converted vehicles incorporate new items of these types of equipment, the items must comply with the applicable Federal safety standards. For example, lights are subject to requirements specified in Standard No. 108, and glazing is subject to requirements specified in Standard No. 205.

Finally, you ask whether "EG&G Idaho need[s] to be certificated... ." There is no procedure to certify any manufacturer. It is the manufacturer that must certify that its vehicles meet the applicable federal safety standards. However, you should submit the manufacturer's information required by 49 CFR 566 to NHTSA. This information includes the name and address of the manufacturer (in this case, EG&G), a description of the type of vehicle manufactured, the use for which it is intended, and the fact that EG&G is a final stage manufacturer. I have enclosed a copy of Part 566 for your information.

For your information, I have also enclosed a general information sheet for new manufacturers that gives a succinct outline of the relevant NHTSA regulations and explains how to get copies of those regulations.

I hope this information is helpful. If you have any further questions or need some additional information on this subject, feel free to contact David Elias of my staff at this address or by telephone at (202) 366-2992.

Sincerely,

Paul Jackson Rice Chief Counsel Enclosures ref:567 d:9/4/92

1992

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.