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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 1371 - 1380 of 16490
Interpretations Date

ID: nht91-1.50

Open

DATE: February 26, 1991

FROM: Paul Jackson Rice -- Chief Counsel, NHTSA

TO: Jim Holperin -- State Representative, 34th Assembly District

TITLE: None

ATTACHMT: Attached to letter dated 1-3-91 from Jim Holperin to Taylor Vinson (OCC 5600)

TEXT:

This is in reply to your letter of January 3, 1991, to Taylor Vinson of this Office, on behalf of your constitutent LeRoy E. Mueller. Mr. Mueller is a manufacturer of trailers, and is concerned that if he builds certain tilt deck trailers to specifications they will fail to conform to Federal Motor Vehicle Safety Standard No. 108. Specifically, a stationary ramp "might obscure a clear view of the trailer's tail lights from a 45 degree angle . . . ." You have asked whether his concern "regarding an obstructed view of the tail light" is a legitimate one.

As Mr. Mueller indicates, Standard No. 108, Lamps, Reflective Devices, and Associated Equipment, incorporates by reference SAE Standard J585e, Tail Lamps (Rear Position Lamps), Sept. 1977, which applies to trailers. This standard requires that "Signal from lamps on both side of the vehicle shall be visible through a horizontal angle from 45 deg. to the left to 45 deg. to the right. The SAE standard further specifies that "To be considered visible, the lamp must provide an unobstructed projected illuminated area of outer lens surface, excluding reflex, at least 2 square inches in extent, measured at 45 deg. to the longitudinal axis of the vehicle." We note that stop lamps and rear turn signal lamps must also meet this requirement.

You have enclosed a photocopy of a photograph of the rear of a trailer taken from what we assume represents a 45 degree angle to the left of the horizontal centerline of the trailer. Certain lamps, visible from another photocopy of a picture taken on the centerline, appear to be obscured at the 45 degree angle. Thus, it appears that Mr. Mueller's concern to be a legitimate one. Under the National Traffic and Motor Vehicle Safety Act, it is the responsibility of the manufacturer to determine whether his vehicle conforms to all applicable Federal motor vehicle safety standards, and to ensure that it does before affixing a certification of compliance to it upon completion of its manufacture. If this agency has reason to believe that a motor vehicle or item of motor vehicle equipment has been manufactured and/or certified in violation of the Vehicle Safety Act, this agency conducts an investigation and, if appropriate, an enforcement action.

However, we would like to point out that if trailer equipment prevents compliance of a required lamp, like a tail lamp, with any of Standard No. 108's requirements, paragraph S5.3.1.1 of the standard permits a manufacturer to install an auxiliary lamp meeting the standard's requirements.

ID: 15541.pad

Open

Ms. Ginny Schafer
1790 Highgrove Dr.
Alpharetta, GA 30201

Dear Ms. Schafer:

This responds to your June 26, 1997, letter asking whether the "slipcover type product" you wish to make must meet Federal flammability standards. Your letter does not describe the product in detail, but presumably it would be used to protect the vehicle seat against wear and tear. You state that the slipcover "will be slipped on over the seat, and it will not interfere with seat belts or children's car seats. (There will be an opening in the fabric to accommodate seat belts.)" The product would be sold to consumers in the aftermarket for installation in their own vehicles.

By way of background information, the National Highway Traffic Safety Administration (NHTSA) has the authority to issue Federal motor vehicle safety standards for new motor vehicles and new items of motor vehicle equipment. NHTSA does not, however, approve or certify any vehicles or items of equipment. Instead, Congress has established a "self-certification" process under which each manufacturer is responsible for certifying that its products meet all applicable safety standards. The following represents our opinion based on the information set forth in your letter.

There currently is no Federal motor vehicle safety standard that directly applies to your product. Safety Standard No. 302, Flammability of Interior Materials, applies to new, completed vehicles and not to aftermarket items of equipment sold separately from a vehicle, such as a slipcover sold in the aftermarket. Thus, your aftermarket product need not meet Federal flammability requirements.

While no safety standard applies to your product, you should be aware that under 49 U.S.C. 30118-30121, each manufacturer of motor vehicle equipment (such as aftermarket vehicle seat slipcovers) is responsible for ensuring that its product is free of safety-related defects. If you or NHTSA determines that a safety related defect exists, you would be responsible for notifying purchasers of the defective equipment and remedying the problem free of charge.

In addition, 30122 of our statute prohibits motor vehicle manufacturers, distributors, dealers and repair businesses from knowingly making inoperative any part of a device or element of

design installed on or in a vehicle in compliance with the Federal safety standards. While it is unlikely that your product would be installed by persons listed in 30122, if a commercial entity does install it, it must ensure that the product does not undermine the vehicle's compliance with the flammability resistance requirements.

The prohibition of 30122 does not apply to individual owners who install equipment in their own vehicles. Thus, individual owners may install any item of motor vehicle equipment regardless of its effect on compliance with Federal motor vehicle safety standards. However, NHTSA encourages vehicle owners not to degrade the safety of their vehicles.

Because the slipcover is used with child seats and vehicle belts, you should ensure that the product not interfere with the performance of those safety systems. The opening on the slipcover for the belts must not restrict the belt's ability to remain taut or to tighten up in a crash. The slipcover should not have padding that can compress in a crash and introduce slack into the vehicle belt system. Excessive slack can cause the child seat to move too far out of the seating position in a crash, which can result in a greater likelihood the child's head would contact hard surfaces.

State or local jurisdictions might have their own requirements for the slipcover you wish to produce. For information about those requirements, you should contact the Department of Motor Vehicles in any state in which the equipment will be sold or used.

You identified two types of fabric by name and manufacturer and ask if they meet Federal flammability requirements. NHTSA does not test products before their sale, nor can we assure manufacturers that a particular supplier meets the Federal requirements. If you intend that your slipcovers meet flammability resistance requirements, which would be a decision we would encourage, you should contact the manufacturer of the fabric for information on conformance of the product.

If you have any other questions, please contact Deirdre Fujita of my staff at this address or by phone at (202) 366-2992.

Sincerely,
John Womack
Acting Chief Counsel
ref:213#302
d.8/21/97

1997

ID: nht93-7.27

Open

DATE: October 19, 1993

FROM: Jason Backs -- Engineering Department, Travis Body and Trailer, Inc.

TO: Taylor Vinson

TITLE: None

ATTACHMT: Attached to letter dated 11/18/93 from John Womack to Jason Backs (A41; Std. 108)

TEXT: Recently, I spoke with Patrick Boyd (Room 5307) concerning the conspicuity law and how it will affect the business at which I work. Mr. Boyd suggested that I direct my question to you. Allow me to fill you in on the details. I am an engineer at Travis Body & Trailer in Houston, TX. We manufacture aluminum and steel end dump trailers. We will be required to meet the trailer conspicuity law which becomes effective December 1. The law is very detailed about most aspects of its implementation. However, I would like to be sure that my suggested installation is indeed conforming to the law. The rubrail is the obvious placement for the reflective tape on a dump trailer. However, since our present extrusions have raised ridges on the outer surface, it is not convenient to apply the reflective tape to the rubrail. As the final alternative, we could order three new extrusion dies. This would be quite expensive. Presently, I propose that we apply fifteen separate 18" lengths of the tape (11" red, 7" white, made by 3M) to the side sheet directly above the rubrail and in between each side stake. Using these lengths yields 58% coverage of a 39' trailer. This installation places the tape in full view from a point normal to the side of the trailer. At approximately 30 degrees from normal to the side of the trailer, the edge of the tape begins to be obstructed by the side stake. At 45 degrees from normal to the side of the trailer, 1 1/2" (8.33%) of each 18" section of tape is obstructed by the side stake. At 60 degrees from normal to the side of the trailer, 4" (22.22%) of each 18" section of tape is obstructed by the side stake. At 60 degrees from the normal to the side of the trailer, the tailgate reflective tape is in view. This placement of the tape in a slightly recessed position on the trailer which causes obstruction at large angles from normal to the trailer side is why I question that it conforms to the law. We can comply to the application of the reflective tape on the full width of the tailgate (rear of the tailer) with no question. I would like from you in writing that this specific installation of the reflective tape is in fact in compliance to the law in every respect. This would be helpful to have on file in the future should any of our trailer's conformity to the conspicuity law ever arise. Should any of the drawings depicting the placement of the stickers be unclear, feel free to call me. If you deem that this installation is not in compliance to the full extent of the conspicuity law, please contact me to further discuss our options.

ID: 11594.MLS

Open

Mr. Thomas D. Petru
Assistant Director -LP-Gas Section
Railroad Commission of Texas
Gas Services Division
1701 North Congress Avenue
P.O Box 12967
Austin, TX 78711-2967

Dear Mr. Petru:

This responds to your letter requesting information about the use of acoustic emissions for retesting certain types of Compressed Natural Gas (CNG) containers installed on transit buses. Your letter was referred to us by the Federal Transit Administration. You stated that a study comparing acoustic emissions testing with hydrostatic testing would be beneficial. You asked for views concerning the possibility of the Texas Railroad Commission suspending the retesting of CNG containers that have expired until after such a study could be completed.

By way of background information, Congress has authorized NHTSA to issue Federal Motor Vehicle Safety Standards applicable to new motor vehicles and items of motor vehicle equipment. (49 U.S.C. 30101 et seq.) NHTSA, however, does not approve or endorse motor vehicles or motor vehicle equipment. Instead, the statute establishes a "self-certification" process under which each manufacturer is responsible for certifying that its products meet all applicable safety standards

NHTSA has no authority to require the retesting of motor vehicles or items of motor vehicle equipment after the vehicles or equipment are sold to consumers.

NHTSA has issued Federal Motor Vehicle Safety Standard No. 304, Compressed Natural Gas Fuel Container Integrity, (49 CFR 571.304), which specifies requirements for the integrity of new CNG containers used to fuel motor vehicles. The standard applies to all CNG containers manufactured on or after March 27, 1995 (the date the standard took effect), and requires that new CNG containers comply with a hydrostatic burst test. The manufacturers must certify that their containers meet the requirements at the point of sale. However, after the first consumer purchase of a motor vehicle or an item of motor vehicle equipment, NHTSA's authority is much more limited and does not extend to periodic retesting of motor vehicles or such equipment.

NHTSA has no position on the relative merits of acoustic emissions or hydrostatic testing. Nor is this agency planning to conduct a study to evaluate the relative merits of these two retesting methods.

The U.S. Department of Transportation=s Research and Special Programs Administration (RSPA) is authorized by Congress to issue standards for containers used to transport hazardous materials, including CNG containers. Such CNG containers may carry RSPA=s DOT specification or exemption markings, including retest markings. RSPA, however, does not have the statutory authority to regulate CNG containers that are used to fuel a motor vehicle. In other words, there are no Federal requirements applicable to the periodic retesting of CNG containers designed to fuel a motor vehicle.

I hope you find this information helpful. If you have any other questions, please contact Marvin Shaw at this address or by phone at (202) 366-2992.

Sincerely,

Samuel J. Dubbin Chief Counsel

ref: 304 d:4/29/96

1996

ID: 11594MLS

Open

Mr. Thomas D. Petru
Assistant Director -LP-Gas Section
Railroad Commission of Texas
Gas Services Division
1701 North Congress Avenue
P.O Box 12967
Austin, TX 78711-2967

Dear Mr. Petru:

This responds to your letter requesting information about the use of acoustic emissions for retesting certain types of Compressed Natural Gas (CNG) containers installed on transit buses. Your letter was referred to us by the Federal Transit Administration. You stated that a study comparing acoustic emissions testing with hydrostatic testing would be beneficial. You asked for views concerning the possibility of the Texas Railroad Commission suspending the retesting of CNG containers that have expired until after such a study could be completed.

By way of background information, Congress has authorized NHTSA to issue Federal Motor Vehicle Safety Standards applicable to new motor vehicles and items of motor vehicle equipment. (49 U.S.C. 30101 et seq.) NHTSA, however, does not approve or endorse motor vehicles or motor vehicle equipment. Instead, the statute establishes a "self-certification" process under which each manufacturer is responsible for certifying that its products meet all applicable safety standards

NHTSA has no authority to require the retesting of motor vehicles or items of motor vehicle equipment after the vehicles or equipment are sold to consumers.

NHTSA has issued Federal Motor Vehicle Safety Standard No. 304, Compressed Natural Gas Fuel Container Integrity, (49 CFR 571.304), which specifies requirements for the integrity of new CNG containers used to fuel motor vehicles. The standard applies to all CNG containers manufactured on or after March 27, 1995 (the date the standard took effect), and requires that new CNG containers comply with a hydrostatic burst test. The manufacturers must certify that their containers meet the requirements at the point of sale. However, after the first consumer purchase of a motor vehicle or an item of motor vehicle equipment, NHTSA's authority is much more limited and does not extend to periodic retesting of motor vehicles or such equipment.

NHTSA has no position on the relative merits of acoustic emissions or hydrostatic testing. Nor is this agency planning to conduct a study to evaluate the relative merits of these two retesting methods.

The U.S. Department of Transportation=s Research and Special Programs Administration (RSPA) is authorized by Congress to issue standards for containers used to transport hazardous materials, including CNG containers. Such CNG containers may carry RSPA=s DOT specification or exemption markings, including retest markings. RSPA, however, does not have the statutory authority to regulate CNG containers that are used to fuel a motor vehicle. In other words, there are no Federal requirements applicable to the periodic retesting of CNG containers designed to fuel a motor vehicle.

I hope you find this information helpful. If you have any other questions, please contact Marvin Shaw at this address or by phone at (202) 366-2992.

Sincerely,

Samuel J. Dubbin Chief Counsel

ref:304 d:4/29/96

1996

ID: nht78-2.27

Open

DATE: 08/16/78

FROM: A. MALLIARIS FOR M. M. FINKELSTEIN -- NHTSA

TO: Department of Radiology and Nuclear Radiology

TITLE: FMVSS INTERPRETATION

TEXT: This is in response to your letter of July 21, 1978, regarding the height of head restraints in U.S. manufactured cars.

Federal Motor Vehicle Safety Standard No. 202, Head Restraints, Passenger Cars, copy enclosed, requires that when the head restraint is adjusted to its fully extended design position, the top of the head restraint shall not be less than 27.5 inches above the seating reference point. The 27.5 inches approximates the distance from the hip point to the occiput of a 95% percentile anthropometric male figure. The seating reference point in turn corresponds to the hip point. Therefore, head restraints would be expected to be adjustable to the normal sitting height of 95 percent of the male population.

On March 10, 1978, the National Highway Traffic Safety Administration (NHTSA) issued a notice of a draft plan for rulemaking, copy enclosed. Plans for rulemaking concerning head restraints are noted on page 11106 under Docket 74-13. To support future rulemaking regading the height of head restraints we would appreciate any data that you may have in your possession regarding cervical spine injuries in rear impact accidents. It may be forwarded to NHTSA, Docket 74-13.

A copy of your letter is being forwarded to the docket as a matter for the public record.

SINCERELY,

Orlando General Hospital

U.S. Department of Transportation National Highway Safety Administration Office of the Rule Making

July 21, 1978

Dear Sir:

It is my opinion that the headrest on U.S. manufactured cars are designed to prevent injury to the cervical spine and the skull. Through personal experience and experience as a Radiologist, I find that the maximum height of these headrests are not high enough to prevent injury to taller people.

I strongly encourage that the headrests installed in U.S. manufactured automobiles be adjustable by the occupant so that people over 6 foot 2 inches tall may have the benefit of safety. At the present time, the maximum height sometimes encourages more traumatic injuries of the cervical spine rather than preventing them in regards toward tall people.

Bodo E. Pyko, D.O. Chairman Department of Radiology and Nuclear Radiology

ID: 10-001612_Hansen_motorcycle_crs

Open

Ms. Sara Hansen

RS Hansen Enterprises

N5804 Albany N

Mondovi, WI 54755-9608

Dear Ms. Hansen:

This responds to your letter asking whether a German motorcycle child seat for scooters or motorcycles is regulated by the National Highway Traffic Safety Administration (NHTSA). You ask about the laws and regulations that would apply to this product.

By way of background, NHTSA is authorized under the National Traffic and Motor Vehicle Safety Act (49 U.S.C. Chapter 301, Safety Act) to issue and enforce Federal motor vehicle safety standards (FMVSSs) applicable to new motor vehicles and items of motor vehicle equipment manufactured for sale, sold, offered for sale or imported into the United States of America. NHTSA does not approve motor vehicles or motor vehicle equipment, nor do we endorse any commercial products. Manufacturers are required to certify that their vehicles and equipment meet all applicable standards. Under the Safety Act, manufacturers also must ensure that their products are free from safety-related defects. The term manufacturer includes not only persons who manufacture or assemble vehicles and equipment, but also persons who import them for sale in the U.S.

In your brief letter, you state that you would like to import the child seat. You attached a two-page instruction pamphlet produced by the child seat manufacturer. The instructions indicate that the child seat is fitted over the scooter or motorcycle seats back or sides, or is placed on top of the seat. It has a retaining strap that attaches the child seat to the vehicle seat. One strap attaches to the seat cushion, another strap attaches forward of the child seat to prevent the child seat from slipping backwards, and other straps loop around the scooters or motorcycles rack or bar behind the child seat. The child seat has no safety belts for the child. The instructions state: 1. Place the child in the child seat so that his/her back is flat against the backrest. 2. Place the feet in the footrests. 3. The driver then sits back on the vehicle seat until his/her behind is touching the child. This will prevent the child from sliding forwards.

The following is our interpretation based on the information you provided.

While the device you ask about is considered an item of motor vehicle equipment under the Safety Act, it is not subject to any FMVSS. NHTSA issued FMVSS No. 213, Child Restraint Systems, which applies to the manufacture and sale of new child restraint systems. Child restraint system is defined in S4 of the standard to mean any device, except Type I or Type II seat belts, designed for use in a motor vehicle or aircraft to restrain, seat, or position children

who weigh 30 kilograms (kg) or less. FMVSS No. 213 was not intended to apply to seats for motorcycles. Its requirements were developed and drafted with the intention that they apply to restraint devices used in the interiors of vehicle types like passenger cars and multipurpose passenger vehicles.

Further, the device you describe is designed to seat children who weigh 30 kg (65 pounds) or less, but the seat is not designed for use in a motor vehicle or aircraft. (Emphasis added.)

Since the item of equipment is not a child restraint system regulated by FMVSS No. 213, the manufacturer would be prohibited from making any statements stating or implying that the seat is certified as meeting FMVSS No. 213. Under the Safety Act, an importer is a manufacturer. Accordingly, you would be prohibited from stating that the device meets FMVSS No. 213 or labeling the device as meeting the standard.

You should also be aware of several other matters.

As noted above, the Safety Act imposes responsibilities on manufacturers of motor vehicles and motor vehicle equipment regarding safety-related defects. Manufacturers are responsible for ensuring that the vehicles and equipment they manufacture are free from safety-related defects and can perform their intended function safely. If the manufacturer or NHTSA determines that a safety-related defect exists, the manufacturer is obligated under the Safety Act to notify purchasers of its product and remedy the problem free of charge.

Note that individual States are responsible for setting requirements for the operation of vehicles in their jurisdictions, including requirements for restraining and otherwise transporting children. We suggest you check State law as to whether the equipment item you described would be permitted to be used in the various States.

Finally, in addition to the provisions discussed above, there is a possibility of liability in tort should your device prove to be unsafe in operation. You may wish to consult a local lawyer concerning liability in tort.

We would like to take this opportunity to highlight the following about transporting children on motorcycles. There is a significantly greater risk of death and injury to motorcycle riders and passengers than that to occupants of passenger cars. The fatality rate per vehicle miles traveled (VMT) in a motorcycle is 39 times greater than that in a passenger car, and the injury rate per VMT in a motorcycle is 8 times greater than that in a passenger car. In 2008, the fatality rate per 100 million VMT was 36.52 in a motorcycle, compared to 0.92 in a passenger car. Similarly, the injury rate per 100 million VMT was 663 in a motorcycle, compared to 83 in a passenger car. These data show that children are much safer transported in cars than on motorcycles.



We are interested in reviewing any data you have on how the motorcycle child seat has performed in the field, such as data showing whether the device has had a bearing on the incidents, extent or nature of injuries and fatalities to child passengers on motorcycles. Please send the information to NHTSAs Office of Crashworthiness Standards, 1200 New Jersey Avenue, Washington, D.C. 20590.

If you have further questions, please contact Deirdre Fujita of my staff at (202) 366-2992.

Sincerely,

O. Kevin Vincent

Chief Counsel

11/19/2010

ID: 004597drn

Open

    Michael E. Ogle, Sales Manager
    Schiller International Corp.
    120 Newsons Gait
    Fayetteville, GA 30215

    Dear Mr. Ogle:

    This responds to your request for an interpretation whether a Liebherr mobile construction crane that your company has imported into the United States is a "motor vehicle." This letter confirms that the National Highway Traffic Safety Administration (NHTSA) does not consider the mobile construction crane to be a "motor vehicle."

    You have enclosed brochures (with a photograph and diagrams) describing the crane at issue, the Liebherr LTM 1090/2, 110 ton mobile crane.

    By way of background information, NHTSA interprets and enforces the laws under which the Federal motor vehicle safety standards are promulgated. NHTSAs statute at 49 U.S.C. Section 30102(a)(6) defines the term "motor vehicle" as follows:

    a vehicle driven or drawn by mechanical power manufactured primarily for use on public streets, roads, and highways, but does not include a vehicle operated only on a rail line.

    Further, if a vehicle is a "motor vehicle," it must comply with all applicable Federal motor vehicle safety standards in order to be imported into the United States (49 U.S.C. 30112(a)). The question is whether the Liebherr LTM 1090/2 is a "motor vehicle."

    Whether the agency will consider a construction vehicle, or similar equipment, to be a motor vehicle depends on its use. It is the agency's position that this statutory definition does not encompass mobile construction equipment, such as cranes and scrapers, which use the highway only to move between job sites and which typically spend extended periods of time at a single job site. In such cases, the on-highway use of the vehicle is merely incidental and is not the primary purpose for which the vehicle was manufactured. In instances where vehicles, such as dump trucks, frequently use the highway going to and from job sites, and stay at a job site for only a limited time, such vehicles are considered motor vehicles for purposes of the Safety Act, since the on-highway use is more than "incidental."

    Based on the literature provided in your letter, we believe the on-highway use of your equipment is merely incidental and not the primary purpose for which they were manufactured. Therefore, we do not consider it to be a "motor vehicle."

    We note that our interpretations in this area are based on a court decision issued in 1978. Subsequent legal developments make the holding of that court decision open for reassessment. Moreover, some mobile construction equipment may be using the public roads with greater frequency than the equipment the court decided were not motor vehicles subject to our jurisdiction. At some point in the future, we may revisit the issue of whether certain mobile construction equipment should be considered motor vehicles. However, if we were to take such action, we would announce it publicly, and address such issues as what standards should apply to the vehicles and what effective date is appropriate.

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

    Sincerely,

    Jacqueline Glassman
    Chief Counsel

    ref:VSA 102(3)
    d.10/20/03

2003

ID: 14056dre.am

Open

Ms. Carol Dingledy
Manager, Corporate Communications
Cosco Inc.
2525 State St.
Columbus, IN 47201

Dear Ms. Dingledy:

This responds to your January 27, 1997 letter concerning the air bag warning label requirement adopted in Standard 213 by a November 27, 1996 final rule (61 FR 60206). You ask whether you can revise the label for Cosco's "Dream Ride" car bed.

The November 1996 rule requires that beginning May 27, 1997, rear-facing child seats must have a specified label "that conforms in content to Figure 10...." Figure 10, also adopted by the rule, depicts a label with the word "Warning" and an alert symbol in the heading, and a message and pictogram under that heading. The text of the message appears as:

DO NOT place rear-facing child seat on front seat with air bag.

DEATH OR SERIOUS INJURY can occur.

The back seat is the safest place for children 12 and under.

You state that the Dream Ride can be used rear-facing, and side-facing as a car bed. According to the installation information you enclosed, Cosco believes that the Dream Ride "can be used as a car bed in seating locations where there is an air bag." You ask whether the standard would permit you to add a sentence at the beginning of the required text, stating:

Dream Ride can be used with an air bag in the car bed position ONLY.

You believe this sentence is needed "to make the intent crystal clear and prevent anyone from either facing the car seat forward or putting an infant who must be watched alone in the rear seat."

Our answer is that the standard does not permit the additional sentence on the label. S5.5.2(k)(4) requires a label that, among other things, "conforms in content to Figure 10." NHTSA provided flexibility in the final rule concerning the format and size of the label, but stated that "Manufacturers agreed that NHTSA should specify the label content and prohibit additional labels." 61 FR at 60210. Thus, flexibility as to the content of the label was not provided.

References to car bed use, while precluded from inclusion on the label, may be included in the installation instructions for the restraint. Please note, however, that the January 6, 1997 final rule extending the time period during which manual cutoff switches for the passenger-side air bag are permitted (62 FR 798) expressed the following concerns about car beds:

Given the limited information that is available [on the use of car beds], NHTSA is not prepared to recommend placing a car bed in front of an air bag. The agency did conduct a test in which the air bag deployed primarily over the top of a car bed, barely contacting the bed. However, NHTSA used an infant dummy that was not instrumented, and thus did not obtain measurements of the potential for injury.* * * The agency does not know how hard the air bag impacted the bed, or what the effect the impact would have on a four, five or ten pound infant, with or without a medical problem. Moreover, the agency does not know the extent to which that particular test was representative of current vehicle seats and air bags. Finally, NHTSA notes that car beds cannot fit on bucket seats. (62 FR at 804, column 3)

We would appreciate learning the basis for your determination that the Dream Ride is safe to use side-facing in front of an air bag.

Sincerely,

John Womack

Acting Chief Counsel

ref:213

d:3/31/97

1997

ID: nht88-1.34

Open

TYPE: INTERPRETATION-NHTSA

DATE: 02/11/88 EST

FROM: ERIKA Z. JONES -- CHIEF COUNSEL, NHTSA

TO: LLOYD J. OSBORN -- CHIEF, CUSTOMS AND QUARANTINE DIVISION, DEPARTMENT OF COMMERCE, GOVERNMENT OF GUAM

TITLE: NONE

ATTACHMT: MEMO DATED 12-11-87, FROM LLOYD J. OSBORN, TO NHTSA, 20950

TEXT: This is in reply to your letter of December 11, 1987, to the Office of Vehicle Safety Standards of this agency in which you request a "list of vehicles which have been determined by NHTSA to be excluded as motor vehicles."

The agency does not maintain a list of this nature. The National Traffic and Motor Vehicle Safety Act defines a "motor vehicle" as a vehicle, with or without motive power manufactured primarily for use on the public streets, roads, and highways. This c ategory includes vehicles capable of off-road use but which are nevertheless generally licensed for use on the public roads. Over the years, NHTSA has provided interpretations that the following types of vehicles are not "motor vehicles": single seat ra cing cars; stock cars modified to the point that they are no longer licensable for use on the public roads; all-terrain vehicles, racing motorcycles and off-road motorcycles that are trailered over the public roads, golf carts, in-plant vehicles lacking doors and lighting devices, airport crash and rescue vehicles, and shuttle buses, snowmobiles, mobile homes, farm tractors, farm trailers whose use of the public roads is limited to crossing from one field to another, and trailers like mobile compressors which spend lengthy periods of time at an off road worksite and only infrequently travel by road to a new worksite. In addition, the agency does not consider construction cranes to be "motor vehicles". Finally, vehicles manufactured pursuant to militar y contracts, while "motor vehicles", are nevertheless exempted from compliance with the Federal motor vehicle safety standards.

If you have any further questions we shall be happy to answer them, as well as furnish whatever other assistance you may require in formulating your Customs procedures.

Request an Interpretation

You may email your request to Interpretations.NHTSA@dot.gov or send your request in hard copy to:

The Chief Counsel
National Highway Traffic Safety Administration, W41-326
U.S. Department of Transportation
1200 New Jersey Avenue SE
Washington, DC 20590

If you want to talk to someone at NHTSA about what a request for interpretation should include, call the Office of the Chief Counsel at 202-366-2992.

Please note that NHTSA’s response will be made available in this online database, and that the incoming interpretation request may also be made publicly available.

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