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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 14891 - 14900 of 16514
Interpretations Date
 search results table

ID: nht95-7.60

Open

TYPE: INTERPRETATION-NHTSA

DATE: December 12, 1995

FROM: Samuel J. Dubbin -- Chief Counsel, NHTSA

TO: Tom Byrne -- Vice President, Goodridge (USA) Inc.,

TITLE: NONE

ATTACHMT: 10/3/95 letter from Tom Byrne to John Womack

TEXT: This responds to your letter requesting an interpretation of Federal Motor Vehicle Safety Standard No. 106; Brake hoses. According to your letter, you plan to sell a brake hose assembly for hydraulic brake systems that you refer to as "Stainless Steel Braided Brakelines." n1 You then asked several questions about selling your product in this country.

n1 The standard defines a "brake hose assembly" as a "brake hose, with or without armor, equipped with end fittings for use in a brake system . . ."

By way of background information, the National Highway Traffic Safety Administration (NHTSA) administers Federal requirements for the manufacture and sale of new motor vehicles and certain items of motor vehicle equipment, including brake hose assemblies. Congress has established a "self-certification" process under which each manufacturer is responsible for certifying that its products meet all applicable Federal motor vehicle safety standards (FMVSSs). This process requires each manufacturer to determine that its products meet all applicable requirements. NHTSA tests vehicles and equipment sold to consumers for compliance with the FMVSS's and investigates defects relating to motor vehicle safety. If a manufacturer or NHTSA determines that a noncompliance or safety-related defect exists, the manufacturer must notify purchasers of its product and remedy the problem free of charge. A manufacturer of a noncomplying product is also subject to a civil penalty of up to $ 1,000 for each noncomplying item it produces. I have enclosed an information sheet that highlights the responsibilities you must meet as a manufacturer of motor vehicle equipment.

Standard No. 106 applies to new motor vehicles and to brake hoses, brake hose end fittings, and brake hose assemblies. The standard specifies labeling and performance requirements for these products to reduce the likelihood of brake system failure from ruptures in the brake hose or brake hose assembly. New brake hoses, end fittings, and assemblies must meet these requirements to be sold in or imported into this country. If the items do not comply, the manufacturer is subject to the civil penalties and the recall responsibilities mentioned above.

You first asked NHTSA to "confirm" that an independent laboratory certification is valid for the United States. As explained above, NHTSA does not approve manufacturers' products or conduct pre-sale testing of their products. In the United States, the individual manufacturer must certify that its product complies with all applicable FMVSS's.

You then asked NHTSA to confirm that such a brake hose assembly can be used with an adapter into the master cylinder or caliper. Your brake hose assembly can be used at any place in a motor vehicle, provided that in installing it, a vehicle manufacturer, distributor, dealer or repair business does not knowingly make inoperative, in whole or in part, a vehicle or item of equipment which is in compliance with any applicable safety standard. Specifically, inclusion of your brake hose assembly could not modify a hydraulic brake system subject to FMVSS No. 105, Hydraulic Brake Systems, to the extent that it no longer complies with the standard.

Your next question asked whether there are any special marking requirements for brake hose assemblies manufactured for sale in the United States. Section S5.2.4 sets forth labeling requirements for brake hose assemblies.

Section S5.2.4 states that

Each hydraulic brake hose assembly, except those sold as part of a motor vehicle, shall be labeled by means of a band around the brake hose assembly as specified in this paragraph or at the option of the manufacturer, by means of labeling as specified in S5.2.4.1. The band may at the manufacturer's option be attached so as to move freely along the length of the assembly, as long as it is retained by the end fittings. The band shall be etched, embossed, or stamped in block capital letters, numerals or symbols at least one-eighth of an inch high, with the following information:

(a) The symbol DOT constituting certification by the hose assembler that the hose assembly conforms to all applicable motor vehicle safety standards.

(b) A designation that identifies the manufacturer of the hose assembly which shall be filed in writing with: Office of Vehicle Safety Standards, Crash Avoidance Division, National Highway Traffic Safety Administration, 400 Seventh Street SW., Washington DC 20590. The designation may consist of block capital letters, numerals or a symbol.

In addition, section S5.2.4.1 provides as an option that at least one end fitting be etched, stamped or embossed with a designation at least one-sixteenth of an inch high that identifies the manufacturer of the hose assembly.

I have also enclosed copies of two procedural requirements you must satisfy in order to sell your products in this country. The first requirement is NHTSA's regulation for manufacturer identification (49 CFR Part 566). This regulation requires a manufacturer of equipment to which an FMVSS applies (e.g., brake hoses) to submit its name, address, and a brief description of the items of equipment it manufacturers to NHTSA within 30 days after it first imports its products into the United States.

The second requirement is NHTSA's regulation for designations of agents (49 CFR Part 551, Procedural Rules, Subpart D). The regulation requires all manufacturers headquartered outside of the United States to designate a permanent resident of the United States as the manufacturer's agent for service of all process, notices, orders and decisions. This designation should be mailed to me at the following address: Chief Counsel, Room 5219, National Highway Traffic Safety Administration, 400 Seventh St., S.W., Washington, D.C., 20590. The designation must include the following information:

1. A certification that the designation of agent is valid in form and binding on the manufacturer under the laws, corporate-by-laws, or other requirements governing the making of the designation at the time and place where it is made;

2. The full legal name, principal place of business and mailing address of the manufacturer;

3. Marks, trade names, or other designations of origin of any of the manufacturer's products which do not bear its name;

4. A statement that the designation shall remain in effect until withdrawn or replaced by the manufacturer;

5. A declaration of acceptance duly signed by the agency appointed, which may be an individual, a firm or a United States corporation; and,

6. The full legal name and address of the designated agent.

7. In addition, the designation must be signed by a person with authority to appoint the agent. The signer's name and title should be clearly indicated beneath his or her signature.

I hope this information is helpful. If you have further questions, please contact Mr. Marvin Shaw of this office at (202) 366-2992.

ID: nht95-7.61

Open

TYPE: INTERPRETATION-NHTSA

DATE: December 15, 1995

FROM: Samuel J. Dubbin -- Chief Counsel, NHTSA

TO: Hai Tee Young

TITLE: NONE

ATTACHMT: 8/14/95 letter from Hai Tee Young to Secretary of Transportation

TEXT: This responds to your August 14, 1995, letter to the Secretary of Transportation asking whether there are any Federal regulations prohibiting your sunshade invention. The Secretary referred your letter to me because the National Highway Traffic Safety Administration (NHTSA) is the Department of Transportation agency that issues Federal motor vehicle safety standards (FMVSS's) for new motor vehicles and new items of motor vehicle equipment. From the patent application materials and drawings you enclosed with your letter, your invention appears to be venetian blind-type slats for use as a sunshade device on all windows of a motor vehicle, especially the windshield.

In a September 6, 1995 phone conversation with Paul Atelsek of my staff, you stated that you were not concerned about confidentiality of this public letter, even though your patent application has not been made. You also indicated that you wanted us to supplement your letter with additional drawings and letters. We received those materials by facsimile on September 18, 1995.

Let me briefly review the important points of your letter. The blinds for side windows are depicted as being attached to hooks above and below the windows. For the windshield, they are attached to the existing sunvisor and the dashboard. In these drawings, blind deployment appears to be manual and require two hands. However, you state that you could also design the slats to be installed between two layers of glass and have them adjusted either manually or by electric automatic control. You believe that in a crash the blinds would cushion unbelted vehicle occupants before they hit the glass.

The short answer to your question is that, while there are no regulations that directly prohibit your invention, there are Federal requirements that it must satisfy. We also have some safety concerns regarding this invention.

The FMVSS most relevant to your blinds is Standard No. 205, Glazing materials. Among other things, this standard requires the glazing to permit 70 percent of the incident

(Page 2 is missing.)

The manufacturer of these blinds, which are motor vehicle equipment, would be subject to the requirements in sections 30118-30122 of Title 49 of the U.S. Code concerning the recall and remedy of products with defects related to motor vehicle safety. In the event that a manufacturer or NHTSA determines that the product contains a safety-related defect, the manufacturer would be responsible for notifying purchasers of the defective equipment and remedying the problem free of charge.

Other legal requirements could apply depending on how your product is marketed. If your product were installed by a vehicle manufacturer as original equipment, i.e., on a new vehicle, the vehicle manufacturer would have to certify that the vehicle with the blinds installed complies with all FMVSS's, including the standards discussed above. In addition, if your invention were installed by motor vehicle manufacturers, distributors, dealers or repair businesses, those commercial enterprises would have to take care not violate section 30122(b) of Title 49, which prohibits them from "knowingly mak[ing] inoperative any part of a device or element of design installed on or in a motor vehicle . . . in compliance with an applicable. Federal motor vehicle safety standard . . ." For instance, compliance with Standard No. 201 might be degraded if the blinds were mounted in front of the driver. Any violation of this "make inoperative" prohibition would subject the violator to a potential civil penalty of up to $ 1,000 for each violation.

The "make inoperative" prohibition does not apply to modifications that vehicle owners make to their own vehicles. Thus, Federal law would not apply to individual vehicle owners who install your blinds in their own vehicles, even if the installation were to result in the vehicle no longer complying with the safety standards. However, NHTSA encourages vehicle owners not to degrade any safety device or system installed in their vehicles. In addition, since individual States have the authority to regulate modifications that individual vehicle owners may make to their vehicles, you might wish to consult State regulations to see whether your device would be permitted.

I hope this information is helpful. I am also enclosing a copy of a fact sheet titled "Information for New Manufacturers of Motor Vehicles and Motor Vehicle Equipment." If you have any further questions, please feel free to contact Paul Atelsek of my staff at this address or by telephone at (202) 366-2992.

ID: nht95-7.62

Open

TYPE: INTERPRETATION-NHTSA

DATE: December 21, 1995

FROM: Kenneth N. Weinstein -- Assistant Chief Counsel for Litigation, NHTSA

TO: Lewis H. Goldfarb, Esq. -- Assistant General Counsel, Chrysler Corporation

TITLE: Compliance of MY 1995 Cirrus/Stratus with Federal Motor Vehicle Safety Standard No. 210

ATTACHMT: 12/12/95 letter from Lewis H. Goldfarb to Kenneth Weinstein

TEXT: This responds to your letter of December 12, 1995, which transmitted a memorandum containing Chrysler Corporation's legal position on whether the National Highway Traffic Safety Administration (NHTSA) may rely on a July 11, 1995 compliance test to demonstrate that model year 1995 Chrysler Cirrus and Dodge Stratus vehicles fail to comply with Federal Motor Vehicle Safety Standard No. 210.

In the July 10 test, NHTSA's contractor placed the pelvic body block several inches forward from the seat back. n1 In that test, and in subsequent tests conducted by Chrysler with the body block in that location, the rear seat anchorage in the Cirrus/Stratus failed before the 3000 pound test load set out in S5.2 of Standard No. 210 was reached. Chrysler has submitted a summary report describing a recent test in which the anchorage did not fail when the body block was positioned against the seat back, which is the position that Chrysler customarily uses when it tests its vehicles to ascertain whether they comply with Standard No. 210. It is Chrysler's position that since "neither the procedures specified in the standard nor the published laboratory test protocol specify the location of the body block," its test with the body block against the seat should be accepted by NHTSA as demonstrating compliance with Standard No. 210.

n1 Your memorandum states on several occasions that the body block in the NHTSA test was placed four inches in front of the seat back. This distance represents the post-test location of the body block. In fact, the post-test photographs reveal that the floor structure had been distorted during the test procedure, thus indicating that the body block was less than four inches from the seat back prior to the test.

The agency agrees that neither the standard itself nor the laboratory test procedure developed by the Office of Vehicle Safety Compliance (OVSC) specifies a precise distance that the body block is to be placed in front of the seat back. However, rather than support Chrysler's argument, this fact demonstrates that the failure of the Cirrus anchorages to withstand the test loads in NHTSA's test reflects a noncompliance with the standard. In the preamble issued by the agency in connection with its 1991 reconsideration of several amendments to Standard No. 210, NHTSA reiterated its longstanding view of a manufacturer's compliance responsibilities under these circumstances (56 FR 63676, 63677; December 5, 1991):

As a general matter, when a standard does not specify a particular test condition, there is a presumption that the requirements of the standard must be met at all such test conditions. This presumption that the standard must be met at all positions of unspecified test conditions may be rebutted if the language of the standard as a whole or its purposes indicate an intention to limit unspecified test conditions to a particular condition or conditions.

In the case of the strength requirements in Standard No. 210, nothing in the language of the standard suggests that the strength requirements were only to be measured with the safety belt or other vehicle features at certain adjustment positions. Indeed, the purpose of the standard is to reduce the likelihood that an anchorage will fail in a crash. To serve this purpose, the anchorage must be capable of meeting the strength requirements with the safety belt and other vehicle features at any adjustment, since those features could be at any adjustment position during a crash.

The quoted statement, which was made in response to assertions by auto manufacturers that the test procedure was not sufficiently "objective" because certain test conditions were not sufficiently specified in the standard, demonstrates the fallacy of the contention in your memorandum (at pages 6-7) that the positioning of the body block in the July 10 test "introduc[es] a variable in the compliance test procedure that is not authorized by the NHTSA standard . . ." It also completely undermines Chrysler's assertion (at page 7) that the agency is "retroactively interpret[ing]" the standard. The industry was certainly "fairly informed" that "the standard must be met at all positions of unspecified test conditions."

NHTSA also disputes Chrysler's assertion (at page 4) that "the most natural and representative location for the body block" is against the seat back. To the contrary, that location is not consistent with any possible occupant use. Conversely, the location of the body block in the July 10 test conducted for NHTSA reflects the approximate belt geometry that would exist if a 5th percentile female occupied the seat. n2

n2 Standard No. 210 requires seat belt anchorages to be installed at each designated seating position, which is defined in 49 CFR 571.3(b) in part as a "location capable of accommodating a person at least as large as a 5th percentile female." This is yet another indication that all anchorages should be strong enough to withstand the required test loads when occupied by a person at least as large as a 5th percentile female.

As reflected in the preamble to the 1990 amendments to Standard No. 210 (55 FR 17970; April 30, 1990) and the discussion of the petitions for reconsideration of those amendments (56 FR 63676; December 5, 1991), the agency has endeavored to have the test procedure be as representative as possible of real world crash conditions. See, e.g., 55 FR at 17976-77 (simultaneous testing of anchorages); 55 FR at 17980, Col. 1 (limits on substitute materials to "ensure that the loading imposed during compliance testing is a realistic simulation of actual anchorage loading"); 55 FR at 17980, Col. 3 (effort to assure that reduced body block width will not be "unrepresentative of persons likely to occupy the seating position . . ."); 56 FR at 63677, Col. 1 (use of original attachment hardware "to ensure that the load application onto the anchorage is as realistic as possible"); and 56 FR 63677, Col. 3 (requiring that test setups using replacement webbing "duplicate the geometry" of the original webbing at the initiation of the test "to protect vehicle manufacturers from the agency identifying apparent noncompliances based upon test conditions with unrealistic loading"). n3 n3 NHTSA recognizes that in some respects the test procedure for Standard No. 210 does not simulate real-world conditions. See 55 FR at 17972-73 (explaining why the load onset and load holding times in the standard are "orders of magnitude greater than the corresponding time periods observed in crashes").

Your memorandum contends that an interpretation of Standard No. 210 under which a vehicle could be found noncompliant on the basis of a test with the body block several inches in front of the seat back would render the standard not "objective," and thus inconsistent with 49 U.S.C. @ 30111(a), citing Chrysler Corporation v. Department of Transportation, 472 F.2d 659, 675-676 (6th Cir. 1972). However, that case merely prohibits NHTSA from establishing test procedures that are based on "subjective determinations:"

Objective . . . means that tests to determine compliance must be capable of producing identical results when test conditions are exactly duplicated, that they be decisively demonstrable by performing a rational test procedure, and that compliance is based upon the readings obtained from measuring instruments as opposed to the subjective opinions of human beings.

NHTSA's test procedure, as implemented by its contractor in the July 10 test, clearly satisfies each of these three criteria for objectivity. There can be no dispute that it produces "identical results," as demonstrated by the fact that the anchorages failed in tests performed by Chrysler using that procedure. The procedure is also "rational," in that it reflects a belt geometry that is found in the real world (as opposed to the belt geometry in the body block location favored by Chrysler). Finally, the anchorage failed in a test conducted in accordance with measurable readings, rather than any "subjective opinions of human beings."

Your memorandum states (at page 4) that Chrysler's review of prior NHTSA compliance tests suggests that "the agency has also customarily located the pelvic body block against the seat back during FMVSS 210 compliance tests." Our review of the tests conducted by the agency indicates that this statement is not correct. As I advised you approximately ten days ago, the distance of the body block from the seat is not a data point that is memorialized in the test reports. Therefore, OVSC personnel reviewed the test photos and/or films of all Standard No. 210 tests conducted by NHTSA contractors of MY 1990 and later vehicles in an attempt to ascertain the body block position in those tests. Of the 21 tests in which the body block position could be definitely ascertained, in all but one (a test of the front seat anchorage in a MY 1992 Geo Storm), the block was not flush against the seat back.

In accordance with its usual procedures, OVSC provided Chrysler with contemporaneous reports of the Standard No. 210 compliance tests that the agency performed on its vehicles. Photos of the two Standard Nos. 207/210 tests conducted on Chrysler vehicles during the past five years (on the 1994 Dodge Caravan and the 1994 Dodge Ram Van) reveal that the test body block was placed at some distance from the seat back. Thus, Chrysler cannot legitimately claim that it was surprised by the body block location used by the contractor in the July 10 test.

In sum, although Chrysler has submitted a test that indicates that the anchorages in the 1995 Cirrus did not fail when the body block was placed against the seat back, such a result is not sufficient to demonstrate compliance with Standard No. 210 when the anchorage fails in tests at other body block positions, and particularly where those positions are more reflective of real world belt geometry.

Under the circumstances, if Chrysler does not promptly notify the agency that it has decided that a noncompliance exists and conduct a notification and remedy campaign in accordance with 49 U.S.C. Chapter 301, the Associate Administrator for Safety Assurance would be justified in issuing an initial decision pursuant to 49 U.S.C. @ 30118(a) that such a noncompliance exists. Please advise me or Michael Brownlee of your intentions immediately.

ID: nht95-7.63

Open

TYPE: INTERPRETATION-NHTSA

DATE: December 22, 1995

FROM: Samuel J. Dubbin -- Chief Counsel, NHTSA

TO: Terence J. Kann -- P.A.

TITLE: NONE

ATTACHMT: 11/14/95 letter from Terence J. Kann to Ricardo Martinez (occ 11392)

TEXT: This responds to your letter of November 14, 1995, to Ricardo Martinez, M.D. Administrator of the National Highway Traffic Safety Administration. You have asked whether "pole trailers such as those used in the logging industry, [are] required to have retro-reflective sheeting, reflex reflectors, or a combination?" If not, you asked whether NHTSA issued "any explanation for failing to extend the requirements to pole trailers."

As you noted, Section S3(a) of Motor Vehicle Safety Standard No. 108 applies to "trailers (except pole trailers) . . ." This means that pole trailers, as defined in 49 CFR 571.3(b) are exempted from all the requirements of Standard No. 108 including those of Section S5.7 which specifies conspicuity requirements for "each trailer of 80 or more inches overall width and with a GVWR over 10,000 pounds".

Pole trailers have always been excluded from Standard No. 108 (see 23 CFR 255.51, Motor Vehicle Safety Standard No. 108, Section S2, effective January 1, 1968). Thus, the agency never proposed in the first instance that conspicuity requirements apply to pole trailers, and there was no discussion of pole trailers in the preambles to the proposal and final rule. Apparently, pole trailers were defined and excluded on the basis of comments to Standard No. 108 as originally proposed late in 1966 that a standardized lighting scheme might be impracticable for this category of vehicle.

If you have any questions, you may refer them to Taylor Vinson of this Office (202-366-5263).

ID: nht95-7.64

Open

TYPE: INTERPRETATION-NHTSA

DATE: December 22, 1995

FROM: Samuel J. Dubbin -- Chief Counsel, NHTSA

TO: Kenneth W. Easterling -- Plan B Engineering, Inc.

TITLE: NONE

ATTACHMT: 11/16/95 letter from Kenneth W. Easterling to Taylor Vinson (OCC 11372); 7/30/93 letter from John Womack to Wayne Ferguson

TEXT: This responds to your letter of November 16, 1995, asking for our opinion of "G-Lamps", ("proportional deceleration indicator lamps) intended as a rear end collision avoidance device. Your system would flash the stop lamps proportionally to the rate of deceleration.

Over the years, the agency has received many requests for interpretations of the laws which it administers as they relate to deceleration warning systems. Our reply has been that it is impermissible to wire the stop lamp system so that it flashes, no matter what the purpose of the flashing. I enclose for your information, as a representative reply, a copy of our letter of July 30, 1993, to Wayne Ferguson of the Virginia Department of Transportation, which fully sets forth our views and interpretations.

If you have questions about these matters, you may telephone Taylor Vinson of this office at 202-366-5263.

Enclosure: (see 7/30/93 letter from John Womack to Wayne Ferguson)

ID: nht95-7.65

Open

TYPE: INTERPRETATION-NHTSA

DATE: December 22, 1995

FROM: Samuel J. Dubbin -- Chief Counsel, NHTSA

TO: Richard L. Russell

TITLE: NONE

ATTACHMT: 11/15/95 letter from Rick Russell to Blane Laubis

TEXT: This responds to your FAX of November 15, 1995, to Blane Laubis of this agency, asking for an interpretation of Federal lighting regulations as they may affect your plans to modify your 1956 Jeep.

You wish to add two additional auxiliary lights to supplement your upper beams, and you ask whether these lights are "required to be DOT approved." The answer is no; the DOT regulation on motor vehicle lighting (Federal Motor Vehicle Safety Standard No. 108 Lamps, Reflective Devices, and Associated Equipment does not prescribe requirements for lamps intended to supplement the headlamps, and thus the lamps of which you speak do not have to be certified as meeting Standard No. 108. As a matter of information, your use of the words "DOT approved" reflects a common misconception. We have no authority to approve or disapprove lighting equipment. Under our statute, a lighting (or vehicle) manufacturer is required to certify that its equipment (or vehicle) meets Standard No. 108 (if it is replacement equipment included in the standard), and the use of the DOT symbol on the item is the most frequently used method of certification. This means that the "DOT approved" headlamps on your 1956 Jeep are probably replacement sealed beams with DOT markings on them.

You ask whether there is any limitation to bulb wattage for auxiliary lamps used to supplement the headlamps when used on the upper beam. There is no wattage limitation; however, if auxiliary lamps were installed by the dealer on a new vehicle before its first sale, we would regard the vehicle manufacturer's certification as negated if the brightness and location of the auxiliary lamps were such as to affect an oncoming driver's ability to perceive the front turn signals.

Although your Jeep was manufactured long before the effective date of Standard No. 108 (January 1, 1969), we ask you to consider this safety concern when adding auxiliary lamps. We do not know the local laws on this subject, and recommend that you seek advice from the Department of California Highway Patrol.

If you have any further questions, Taylor Vinson of this Office will answer them for you (phone 202-366-5263).

ID: nht95-7.66

Open

TYPE: INTERPRETATION-NHTSA

DATE: December 22, 1995

FROM: Samuel J. Dubbin -- Chief Counsel, NHTSA

TO: David T. Zelis -- Marketing Manager, Buyers Products Company

TITLE: NONE

ATTACHMT: 11/13/95 letter from David T. Zelis to Office of Chief Counsel, NHTSA

TEXT: This is in response to your letter of November 13, 1995, forwarding literature concerning The Pintle Mount Bumper, which you describe as a new product being offered by your company that is designed to take the place of a vehicle bumper and the receiver tube assembly on a light duty truck. In a telephone conversation with Coleman Sachs of my staff on November 22, 1995, you described this bumper as an aftermarket product that will not be supplied as original equipment on new motor vehicles. You have requested copies of any standards issued by the National Highway Traffic Safety Administration (NHTSA) that may apply to the use or manufacture of this product.

NHTSA has issued Federal motor vehicle safety standards, found at 49 CFR Part 571, and a Bumper Standard, found at 49 CFR Part 581. None of these standards apply to the product that is the subject of your inquiry.

The Bumper Standard applies only to vehicles and not to bumpers sold as items of replacement equipment. Moreover, as stated in 49 CFR 581.3, the only vehicles to which the Bumper Standard applies are "passenger motor vehicles other than multipurpose passenger vehicles." The term "passenger motor vehicle" is defined for purposes of the Bumper Standard at 49 U.S.C. @ 32101 (10) as

a motor vehicle with motive power designed to carry not more than 12 individuals, but does not include- (A) a motorcycle; or (B) a truck not designed primarily to carry its operator or passengers.

Because the light duty pickup trucks for which your product is designed do not fall within this definition, the Bumper Standard does not apply to those vehicles.

The Federal motor vehicle safety standards (FMVSS) apply only to new motor vehicles and items of replacement equipment. Because your bumper is only being sold as aftermarket equipment, it could not affect the compliance of new motor vehicles with the FMVSS. Moreover, there are no FMVSS that would apply to your bumper as a replacement equipment item.

Under 49 U.S.C. @ 30122(b), a motor vehicle manufacturer, distributor, dealer, or repair business is prohibited from "knowingly mak[ing] inoperative any part of a device or element of design installed on or in a motor vehicle . . . in compliance with an applicable motor vehicle safety standard . . ." This provision would be violated if any of the entities to which it refers installed your bumper on a vehicle and, as a result of that installation, the vehicle no longer complied with any applicable FMVSS. For example, the installation of an aftermarket bumper could affect a vehicle's compliance with FMVSS No. 108, Lamps, Reflective Devices, and Associated Equipment, if the bumper obscured any lights or other equipment required by the standard.

Because your bumper is sold as "an addition to a motor vehicle," it meets the definition of "motor vehicle equipment" in 49 U.S.C. @ 30102(a)(7)(c). As the manufacturer of such equipment, you are responsible under 49 U.S.C. @ 30118 for furnishing NHTSA and anyone purchasing your bumper with notification of, and a remedy for, any defect relating to motor vehicle safety that is determined to exist in the bumper.

If you have any further questions regarding this matter, feel free to contact Coleman Sachs of my staff at the above address, or by telephone at (202) 366-5238.

ID: nht95-7.67

Open

TYPE: INTERPRETATION-NHTSA

DATE: December 26, 1995

FROM: Samuel J. Dubbin -- Chief Counsel, NHTSA; Signature by John Womack

TO: Jane Thornton Mastrucci, Esq. -- Thornton, Mastrucci & Sinclair

TITLE: NONE

ATTACHMT: 11/08/95 letter from Jane Thornton Mastrucci to John Womack

TEXT: This responds to your request for an interpretation as to which passenger vehicles and which multipurpose passenger vehicles (MPVs) meet the Federal Motor Vehicle Safety Standards (FMVSSs). You ask this since Florida law allows transportation of pupils in MPVs that meet "all federal motor vehicle safety standards for passenger cars." As explained below, in recent years many of the FMVSSs have been amended to have the same requirements for passenger cars and MPVs. However where differences exist, the only way your client, Dade County School Board, will be able to determine that a specific MPV meets the FMVSSs applicable to passenger cars would be to contact the vehicle's manufacturer.

NHTSA is authorized under 49 U.S.C. Chapter 301 Motor Vehicle Safety to issue FMVSSs for new motor vehicles and new items of motor vehicle equipment. The FMVSSs are codified at Title 49 of the Code of Federal Regulations (CFR), Part 571. There are presently 53 FMVSSs. Each FMVSS's applicability section specifies the motor vehicles and/or equipment to which it applies.

Under 49 U.S.C. section 30112, a person may not manufacture or sell any motor vehicle unless the vehicle meets all applicable FMVSSs and is so certified. Section 30115 establishes a self-certification system whereby the vehicle manufacturer is responsible for certifying that the vehicle meets the safety requirements in the standards applicable to the vehicle. In the certification, the manufacturer must specify the vehicle type (e.g., passenger car, MPV, truck, bus) of the vehicle. Each vehicle type's definition is found at 49 CFR Part 571.3 Definitions. Thus, a new passenger car sold in the U.S. must be certified by the manufacturer as meeting the FMVSSs applicable to passenger cars, and a new MPV must be certified as meeting the standards applicable to MPVs.

In recent years, many FMVSSs have been amended to specify the same requirements for passenger cars and MPVs. For example, for model year 1998 vehicles, Standard No. 208, Occupant crash protection will specify identical requirements for passenger cars and MPVs. For Standard No. 214, Side impact protection, in July 1995, NHTSA issued a final rule in which MPVs manufactured after September 1, 1998 would be required to meet the same dynamic testing requirements as passenger cars.

However, some safety standards that apply to both passenger cars and MPVs do not specify identical requirements for each vehicle type. For example, Standard No. 103 Windshield defrosting and defogging systems applies to passenger cars and MPVs, but specifies different requirements for each vehicle type.

There is no easy way to determine whether a particular MPV meets the passenger car safety standards. Because of differences in FMVSS requirements for passenger cars and MPVs, for information whether a particular MPV meets the passenger car standards, you should contact the MPV's manufacturer. Please note that for some safety standards such as Standard No. 208, a manufacturer may have phased-in the compliance of its MPVs with the safety standard over several years. Therefore, some MPVs manufactured in a particular year may meet the newer standard but other MPVs may not. For information about whether a specific MPV meets the passenger car standards, the manufacturer should be provided with the MPV's seventeen digit vehicle identification number (VIN), which can be found on the vehicle's certification label on the hinge pillar, the door-latch post, or the door edge that meets the door-latch post, next to the driver's seating position.

I hope this information is helpful. If you need any further information, please contact Dorothy Nakama of my staff at (202) 366-2992.

ID: nht95-7.68

Open

TYPE: INTERPRETATION-NHTSA

DATE: December 28, 1995

FROM: Samuel J. Dubbin -- Chief Counsel, NHTSA

TO: Jeffrey S. Bakst, Esq -- Attorney at Law

TITLE: NONE

ATTACHMT: 12/6/95 letter from Jeffrey S. Bakst to Dorothy Nakama (occ 11412)

TEXT: This responds to your request for the views of the National Highway Traffic Safety Administration (NHTSA) on two questions related to litigation in which you are currently involved, that refer to Federal Motor Vehicle Safety Standard No. 124, Accelerator control systems. The two questions and our responses are set out below.

You advise us that you are "dealing with a 1988 Dodge Ram 50 truck manufactured by Mitsubishi in Japan, sold in July, 1988." You informed Dorothy Nakama of my staff that in December 1990, your client was injured while driving the Dodge Ram truck. You further informed Ms. Nakama that our October 26, 1995 interpretation letter to Hugh Bode, Esq. addressed Mr. Bode's questions stemming from the same accident and lawsuit as yours.

Question 1. If the manufacturer discovers a safety-related problem after the vehicle has been sold to the first purchaser in good faith, does the manufacturer have a legal duty to notify NHTSA and/or the purchaser of this problem? If yes, what must a manufacturer do for the purchaser?

The answer to the first part of this question is yes. Pursuant to 49 U.S.C. @ 30118(c):

A manufacturer of a motor vehicle . . . shall notify [NHTSA] by certified mail, and the owners purchasers, and dealers of the vehicle . . . if the manufacturer --

(1) learns the vehicle contains a defect and decides in good faith that the defect is related to motor vehicle safety . . .

Under 49 U.S.C. @ 30120, where such notification is required, the manufacturer "shall remedy the defect . . . without charge when the vehicle is presented for remedy." The vehicle manufacturer may choose to remedy the defect by repairing the vehicle, replacing it with an identical or reasonably equivalent vehicle, or refunding the purchase price, less a reasonable allowance for depreciation. The requirement that the remedy be provided without charge does not apply if the vehicle was bought by the first purchaser more than eight years prior to the manufacturer's defect determination.

Question 2. Assume there is a safety-related defect in a brand new carburetor that results in engine overspeed. If the "two sources of energy" are not sufficient to return the throttle to idle position when the driver removes the actuating force from the accelerator control in use, does the carburetor fail to comply with FMVSS 124?

The relevant portion of FMVSS No. 124 (S5.1) provides as follows:

There shall be at least two sources of energy capable of returning the throttle to the idle position within the time limit specified by S5.3 from any accelerator position or speed whenever the driver removes the opposing actuating force. In the event of failure of one source of energy by a single severance or disconnection, the throttle shall return to the idle position within the time limits specified by S5.3, from any accelerator position or speed whenever the driver removes the opposing actuating force.

Under the standard, with either energy source severed or disconnected, the standard requires that the remaining energy source return the throttle to the idle position within the specified time from any accelerator position or speed whenever the driver removes the opposing actuating force.

NHTSA's Office of Vehicle Safety Compliance, (at (202) 366-2832), is the office within NHTSA which has the authority to investigate whether there is a noncompliance with the Federal Motor Vehicle Safety Standards. We are not in a position to render an opinion as to whether the facts you describe indicate the existence of a safety-related defect.

For your information, I am enclosing a copy of our October 26, 1995 letter to Hugh J. Bode, Esq. If you have any further questions, please contact Dorothy Nakama of my staff at this address or at (202) 366-2992.

ID: nht95-4.34

Open

TYPE: INTERPRETATION-NHTSA

DATE: September 25, 1995

FROM: John Womack -- Acting Chief Counsel, NHTSA

TO: Charles Holmes

TITLE: NONE

ATTACHMT: ATTACHED TO 7/15/95 LETTER FROM CHARLES HOLMES TO NHTSA OFFICE OF CHIEF COUNCIL (OCC 11084)

TEXT: Dear Mr. Holmes:

This responds to your letter asking about Federal requirements for door locks and handles on a 1989 truck with a gross vehicle weight rating (GVWR) of 33,000 pounds. You state that you rented the truck from a rental company.

In your letter, you described an accident you had with the rented truck. You stated that your son fell out of the vehicle when one of its doors opened as you rounded a curve. You are sure that you had locked the door. (You also said you buckled your s on in a seat belt, but believe that he had unbuckled the belt.) After the accident, your son told you he had his hand "over the door handle . . . [and] was tring [sic] to hold on and the door came open."

You ask several questions relating to requirements for "a safety lock" for the door of the truck. As explained below, our safety standards do not require trucks to have "safety locks."

Let me begin with some background information about our safety requirements. Federal law authorizes the National Highway Traffic Safety Administration (NHTSA) to issue Federal motor vehicle safety standards (FMVSS) applicable to new motor vehicles and ne w items of motor vehicle equipment. One such standard is Safety Standard No. 206, Door Locks and Door Retention Components (copy attached). Standard No. 206 established certain requirements for door latches, hinges, and locks for new passenger cars and multipurpose passenger vehicles, and new trucks of all weight ratings. Each new truck must meet Standard No. 206 when the vehicle is first sold at retail. With regard to the truck in question, this means that the truck had to meet the applicable door lock requirements of Standard No. 206 when it was sold "new" to the rental company.

Your first question asks whether we required the truck to have a "safety lock." Standard No. 206 requires each door on a new truck to be equipped with a lock, but without the features we believe you have in mind. When engaged, the lock has to disable th e outside door handle, but not the inside handle. Some manufacturers of passenger vehicles voluntarily install "child safety locks" on some doors, which when engaged, makes the inside door handle inoperative even when the lock is in the "unlocked" posit ion. Child safety locks are not required by NHTSA.

Your next question asked whether the truck in question would be considered a passenger vehicle, since it is a "rental vehicle." The answer is no. A vehicle that is designed primarily for transporting property is a "truck" under our regulations, regardle ss of whether it is a rental vehicle.

Your third question asked what Federal case laws reverse or overrule our regulations. Although some of our regulations have been overruled or modified pursuant to court order, FMVSS No. 206 has not been affected by court action.

Your final question asked for the names and addresses of people injured in accidents similar to yours. We are unable to provide that information. Our data do not include instances in which occupants fall out of moving vehicles where there was no accide nt and where there were no fatalities or injuries.

I hope the above information is helpful to you. Should you have any further questions of need additional information, please feel free to contact Walter Myers of my staff at this address or at (202) 366-2992, or FAX (202) 366-3820.

Enclosure (COPY OF REGULATION IS OMITTED.)

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.