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
| Interpretations | Date |
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ID: nht94-3.57OpenTYPE: Interpretation-NHTSA DATE: July 5, 1994 FROM: Barbara Pietra -- Dabble, Inc. (Los Angeles, CA) TO: John Womack -- Chief Counsel, Office of National Highway Traffic Safety Administration TITLE: None ATTACHMT: Attached to letter dated 8/26/94 from John Womack to Barbara Pietra (A42; Std. 213) TEXT: Several months ago I spoke with you about the Cair Bag I was developing. This product is designed to be used by children in an automobile (or airplane) who have outgrown their child restraint system (car seat or booster seat). This product allows a chi ld to rest or sleep more comfortably, keeping their seat belt positioned properly. In the course of consideration of this product the legal department of Toyota USA has asked me to obtain a letter from you stating that the Cair Bag is not a child restraint system as described in FMVSS No. 213. I spoke with Dee Fujita, Esq. and Susan S tack last Friday, who referred me to you. In the course of the development of this product I spoke to Patricia Breslin, Veronica Ferguson, Carolyn Jeeter of NHTSA, Cheryl Neverman, Susan Stack and Paul Snodgrass of the Department of Transportation, Art Hayes of the FAA and Cecil Smith of the US Products Consumer Safety Commission. Mr. Cecil Smith stated I should state on the label that this product is not intended for use by children under the age of 24 months. Everyone else I spoke with felt this was a great product and the only requirement would be that it not interfere with the automatic locking mechanism of the seat belt, which it dos not do. I felt it was necessary to further state that it is not intended for use by children under 40 pounds, to make it clear that this product is not in tended to compete with or in any way replace child restraint systems (car seats and booster seats). Great care was taken in designing the Cair Bag product; keeping foremost in mind the comfort, safety and reliability of this product. The Cair Bag is a very lightweight (approximately one pound), under-stuffed styrene pellet bag with a removable, washab le cotton fabric outer bag. The Cair Bag is attached to the lap portion of the seat belt with a reinforced velcro and nylon strap. When the child gets tired, he can attach the Cair Bag and lean into it, keeping the shoulder and lap belts positioned properly. This product would help to prevent the child from lying down on the seat of the car with the seat belt improperly, uncomforta bly and dangerously positioned.
The weight of the Cair Bag is distributed over the lap of the child, eliminating its force on the lap portion of the seat belt. Because the filling is very moldable in nature, the Cair Bag adapts to the legs and upper body of the child maintaining the proper positioning of the seat belt; taught across the lap and shoulder of the child. Several months ago a representative from NHTSA sent me the enclosed excerpts from the "Child Passenger Safety Resource Manual". At that time it was determined that the Cair Bag would not interfere with the automatic locking mechanism of the seat belt. Since that time, I have been informed that this product should be recommended for use by children over 50 pounds as to prevent it from being used as a child restraint system. All literature will be changed to show this recommendation. In conclusion, this product is desparately needed to aid in the comfort and safety of children who rest or sleep in the car. It can be seen as a comfort pillow and direct claims will not be made about the safety factor. I have enclosed a copy of the label which will be attached to the Cair Bag, several photographs showing how children lie down on the car seat and the literature designed for Toyota for you evaluation. I look forward to hearing from you. Please do not hesitate to call me if you have any questions about this product at (310) 471-5242. Attachments Cair Bag label. Cair Bag brochure. |
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ID: nht89-2.94OpenTYPE: INTERPRETATION-NHTSA DATE: 09/06/89 FROM: MARGRET SCHMOCK -- ROBERT BOSCH TO: R. VAN IDERSTINE -- NHTSA TITLE: HIGH MOUNTED STOP LAMP ATTACHMT: ATTACHED TO LETTER DATED 11/06/89 FROM STEPHEN P. WOOD -- NHTSA TO FRAU MARGRET SCHMOCK -- ROBERT BOSCH; REDBOOK A34; STANDARD 108 TEXT: Dear Mr. Van Iderstine, Could you please answer to the following questions: 1. Is it allowed to use 6 wedge-base-bulbs (3cp) on one high mounted stop lamp? 2. SAE J186 Nov. 82 says that the effective projected luminous area shall not be less than 29 cm<2>. How would you measure the projected luminous area of a lamp with 6 bulbs? 3. Must each bulb reach the required photometric values? 4. What will happen, if one bulb is defect? Thank you very much in advance and all the best wishes, |
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ID: nht89-2.95OpenTYPE: INTERPRETATION-NHTSA DATE: 09/07/89 FROM: STEPHEN P. WOOD -- NHTSA ACTING CHIEF COUNSEL TO: TERRY HUDYMA -- VICE PRESIDENT, ENGINEERING LAFORZA AUTOMOBILES, INC. TITLE: NONE ATTACHMT: LETTER DATED 11/16/88 FROM TERRY HUDYMA -- LAFORZA AUTOMOBILES TO CHIEF COUNSEL NHTSA; REF 49CFR 567, CERTIFICATION; OCC 2857; LETTER DATED 05/06/85 FROM JOFFREY R. MILLER CHIEF COUNSEL TO HAYLEY ALEXANDER TEXT: Dear Mr. Hudyma: Thank you for your letter requesting an interpretation of 49 CFR Part 567, Certification. Specifically, you asked about certification requirements for multipurpose passenger vehicles that will be assembled in Italy and in Michigan. I apologize for the d elay in this response. The vehicles in question will be assembled in Italy to the extent that they will be "complete with everything except the engine (and associated equipment such as ignition and air conditioning, etc.), transmission and transfer case in Italy." These assemblies will then be imported into the United States where the vehicles will be completed. You state that both the operations in Italy and in Michigan will be performed pursuant to a contract with LAFORZA, who will have "complete co ntrol over the manufacturing process at all times." It is your understanding that in the fact situation described above, LAFORZA is considered to be the manufacturer of the vehicle and therefore LAFORZA is responsible for affixing the certification label on the completed motor vehicle pursuant to 49 CFR P art 567. You asked us to confirm this interpretation. We cannot do so. Under our law and regulations, the company that completes the vehicles in Michigan is a "manufacturer" of the vehicles in question. The information provided in your letter is inad equate to allow us to determine whether LAFORZA might also be considered a "manufacturer" of these vehicles. The first issue to be addressed in our analysis is whether the products in question are "incomplete vehicles" when they arrive in the United States. An "incomplete vehicle" is defined at 49 CFR @568.3 as: . . . an assemblage consisting, as a minimum, of frame and chassis structure, power train, steering system, suspension system, and braking system, to the extent that those systems are to be part of the completed vehicle, that requires further manufact uring operations, other than the addition of readily attachable components, such as mirrors or tire and rim assemblies, or minor finishing operations such as painting, to become a completed vehicle. Your letter states that the products that arrive in the United States will not have an engine or transmission, which means they will not have a power train. Accordingly, @568.3 makes clear that these products would not be "incomplete vehicles" for the purposes of our regulations. In previous interpretations, we have referred to products that do not qualify as "incomplete vehicles" as an "assemblage of items of motor vehicle equipment". In those previous letters, we have stated that the assemblage should be labeled as items of motor vehicle equipment for importation into the United States and that the importer of the assemblage must certify that each item of motor vehicle equipment that is covered by a Federal motor vehicle safety standard complies with such standard. See the enclosed May 6, 1985 letter to Mr. Hayley Alexander. This finding also means that the Italian company that produces these "assemblages of items of motor vehicle equipment" is not a "manufacturer" of motor vehicles with respect to the vehicles in question. Section 102(5) of the National Traffic and Motor V ehicle Safety Act (15 U.S.C. 1391(5); the Safety Act) defines a "manufacturer" as "any person engaged in the manufacturing or assembling of motor vehicles or motor vehicle equipment, including any person importing motor vehicles or motor vehicle equipme nt for resale." In this case, the Italian company producing the assemblage of items of motor vehicle equipment has not manufactured or assembled any motor vehicles, nor has it imported any motor vehicles. Hence, it does not fit the statutory definition of a "manufacturer" of the vehicles in question. After these assemblages are imported into the United States, the operations performed by the Michigan company will transform the items of motor vehicle equipment into a motor vehicle. Therefore, the Michigan company would be a "manufacturer" of these ve hicles for the purposes of the Safety Act and our regulations. Since @567.4(g)(1) requires the certification label to include the name of the manufacturer, the vehicles could comply if the name of the Michigan company were shown on the certification lab el. The information in your letter was inadequate to allow us to make even a tentative determination of whether LAFORZA may also be considered a manufacturer of these vehicles. The agency discussed the issue of vehicles with more than one "manufacturer" at length in its proposal to establish rules of attribution for determining which of the manufacturers would be responsible for complying with the phase-in requirements in Standard No. 208, Occupant Crash Protection (49 CFR @571.208). In that proposal, NHT SA said: Since the National Traffic and Motor Vehicle Safety Act places the responsibility of compliance with safety standards on manufacturers, the agency does not have authority to attribute a vehicle to a party other than one of the vehicle's manufacturers. However, the agency considers the language in section 102(5) of the Vehicle Safety Act that a manufacturer is "any person engaged in the manufacturing or assembling of motor vehicles . . ." to be sufficiently broad to
include sponsors, depending on the circumstances. For example, if a sponsor contracts for another manufacturer to produce a design exclusively for the sponsor, the sponsor may be considered the manufacturer. This follows from application of basic princ iples of agency law. In this case, the sponsor is the principal. On the other hand, the mere purchase of vehicles for resale by a company which also is a manufacturer of motor vehicles does not make the purchaser the manufacturer of those vehicles. 50 FR 14589, at 14596; April 12, 1985. According to your letter, LAFORZA has a contractual relationship with the company in Intaly that is producing the assemblage of items of motor vehicle equipment and a contractual relationship with the company in Michigan that is assembling the motor vehi cle. These contractual relationships led you to assert that ". . . LAFORZA Automobiles will have complete control of the manufacturing process at all times." If LAFORZA merely has contractual relationships under which it purchases products for resale fr om the companies in Italy and Michigan, LAFORZA would not be considered the manufacturer of those vehicles. If you can provide us with information about any role LAFORZA has in producing these vehicles besides contracting with other companies to assembl e the vehicles, we will review that information and offer our interpretation of whether LAFORZA could be considered a "manufacturer" of these vehicles for the purposes of the Safety Act and our regulations. Sincerely, ENCLOSURE |
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ID: nht89-2.96OpenTYPE: INTERPRETATION-NHTSA DATE: 09/07/89 FROM: STEPHEN P. WOOD -- NHTSA ACTING CHIEF COUNSEL TO: BOB BERGMAN -- COMMANDER U.S. ARMY MISSILE COMMAND AMCPM-FM-TM ALABAMA TITLE: NONE ATTACHMT: LETTER DATED 08/07/89 FROM JERRY L. DOOLEY -- US ARMY TO NHTSA; OCC 3833 TEXT: Dear Commander: This is in reply to a letter of August 7, 1989, from Jerry L. Dooley, Deputy Project Manager, Non-Line of Sight, with respect to "safety standards of the military nature", in particular those that would apply to the M1037 High Mobility Multipurpose Wheel Vehicle (HMMWV), as well as the M993 Bradley Fighting Vehicle System (BFVS). This agency has jurisdiction over all motor vehicles, defined as vehicles driven or drawn by mechanical power which are manufactured primarily for use on the public roads. Our principal role is the issuance of the Federal motor vehicle safety standards, and the monitoring of the notification and remedial campaigns of manufacturers upon the occurrence of noncompliances with the standards, or safety related defects in vehicles. We have never issued safety standards for military vehicles. Quite the oppo site; although we interpret our authority as covering military vehicles, the agency has always specifically exempted from compliance with the standards any motor vehicles manufactured for, and sold directly to, the Armed Forces of the United States in ac cordance with contractual specifications. Frequently, military contracts for procurement of vehicles will call for their conformance with the Federal safety standards, when the nature of the vehicle is such (e.g. passenger car, bus) that conformance with the standards is not inconsistent with th e configuration required to accomplish their mission. None of our safety standards for civilian vehicles cover driver field of view, basic visibility requirements, or ingress/egress. Our glazing standard does specify minimum levels of light transmittance, and our rearview mirror standard covers rear view mirror placement and rearward field of view. I am enclosing copies of these standards for your information. If you have further questions, we will be pleased to answer them. Sincerely, Enclosures - Standards Nos. 111, 205 |
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ID: nht89-2.97OpenTYPE: INTERPRETATION-NHTSA DATE: 09/08/89 FROM: ELIZABETH M. LUCAS -- MANAGER, PRODUCT DEVELOPMENT TO: DELL RANDLE -- SHIKARI CONSULTANT FIRM, LTD. TITLE: NONE ATTACHMT: ATTACHED TO LETTER DATED 12/1/89 FROM STEPHEN P. WOOD -- NHTSA TO U.S. CONGRESSMAN GEORGE MILLER; REDBOOK A34; STANDARD 125; LETTER DATED 10/17/89 FROM NANCY L. BRUCE -- D.O.T. OFFICE OF CONGRESSIONAL AFFAIRS TO GEORGE MILLER, U.S. HOUSE OF REP RESENTATIVES; LETTER DATED 10/12/89 FROM GEORGE MILLER, U.S. CONGRESSMAN TO NANCY BRUCE -- D.O.T. OFFICE OF CONGRESSIONAL AFFAIRS; LETTER DATED 10/4/89 FROM DELL RANDLE TO CONGRESSMAN GEORGE MILLER TEXT: Dear Mr. Randle: The New Products Committee recently reviewed your Shi-Lite Holder. We are declining your offer to sell this product because it does not meet federal requirements as set by the Department of Transportation. We wish you luck in your endeavors. Very truly yours, |
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ID: nht89-2.98OpenTYPE: INTERPRETATION-NHTSA DATE: SEPTEMBER 13, 1989 FROM: STEPHEN P. WOOD -- ACTING CHIEF COUNSEL, NHTSA TO: TAYLOR HONG -- PRESIDENT, FAIR SUN INDUSTRIAL CO., LTD., TAIPEI, TAIWAN TITLE: NONE ATTACHMT: Letter dated August 4, 1988 from Taylor Hong, Fair Sun Industrial Co., Ltd., to U.S. Dept. of Transportation is attached; [OCC-2718]. TEXT: This is in reply to your letter with reference to motor vehicle flashers that you wish to sell in the United States. You have asked the following questions: 1. "How do we get DOT approval?" 2. "Should ask for an application forms from you and sent one lot of samples for your test?" The Department has no authority to "approve' flashers, and no laboratory of its own in which it tests them. Under our law, the National Traffic and Motor Vehicle Safety Act, the manufacturer of the flashers, not the Department, determines in the first i nstance whether or not they comply with the SAE materials incorporated into Federal Motor Vehicle Safety Standard No. 108. If the manufacturer is convinced that they comply, it certifies that the flashers meet Standard No. 108, either with a statement o n the container in which the flashers are shipped, a tag attached to each flasher, or a DOT symbol on the flasher itself. From time to time, the Department buys flashers for testing. In this manner, the Department has discovered that a number of those manufactured in Taiwan have not met Federal requirements, and lacked the required certification. In some instances, civil penalties have been imposed against the manufacturer or importer of the flashers. 3. "We may send samples to any other Laboratory and get an approval?" To aid you in reaching a conclusion whether the flashers are designed to conform with Standard No. 108, you may send samples to any test laboratory you wish. Although the standard deems a flasher compliant if not less than 17 of 20 flashers tested meet the requirements, we caution you that you should not accept such a result as a guarantor of compliance. Because of the tolerances involved in production of flashers, we believe that a manufacturer wishing to ensure that at least 17 of 20 flashers will p ass whenever the government tests them should not be satisfied until 20 of 20 flashers submitted for test meet both the performance and durability requirements of Standard No. 108. Further, even obtaining this result on a single occasion is not a guarant ee that flashers will continue to meet Standard No. 108 over time. Accordingly, we urge flasher manufacturers to test their products periodically as an assurance that the flashers remain in compliance. Although you have no obligation to obtain "approval" from the Department, there are two requirements that manufacturers of flashers must meet before offering their products for sale in the U.S. You must designate an agent for service of process (49 CFR 551.45) and file an identifica- tion statement (49 CFR Part 566). I enclo se a copy of these regulations for your information. If you have any further questions we shall be pleased to answer them. Sincerely, Enclosures |
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ID: nht89-2.99OpenTYPE: INTERPRETATION-NHTSA DATE: 09/14/89 FROM: S. WATANABE -- MANAGER AUTOMOTIVE LIGHTING ENGINEERING CONTROL DEPT. STANLEY ELECTRIC COMPANY TO: STEPHEN P. WOOD -- ACTING CHIEF COUNSEL U.S. DOT, NHTSA TITLE: NONE ATTACHMT: ATTACHED TO LETTER DATED 11/01/89 FROM STEPHEN P. WOOD -- NHTSA TO JOHN K. MOODY -- MOODY AND MOODY ENTERPRISES; REDBOOK A34; STANDARD 108; LETTER DATED 08/30/89 FROM JOHN K. MOODY -- MOODY AND MOODY ENTERPRISES TO TAYLOR VINSON -- NHTSA; OCC 3 905 TEXT: Dear Sir, We are now developing a Head Lamp equipped with VHAD, whose structure is shown in the attached drawing. Please give us the advice to the following questions about this Head Lamp. 1) Does a VHAD without a function which compensates the deviation of floor slope satisfy FMVSS No. 108 S7.7.5.2.(a).(1).(V)? 2) This Head Lamp is designed to be aimed vertically by means of observing only one spirit level placed on the movable reflector, as shown in the drawing. Does this structure of VHAD satisfy FMVSS No. 108 S7.7.5.2.(a).(1).(V)? Any information that might be of our interest when designing the Head Lamp with VHAD, as well as the answers to the above questions, would be highly appreciated. Yours faithfully, |
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ID: nht89-3.1OpenTYPE: INTERPRETATION-NHTSA DATE: SEPTEMBER 21, 1989 FROM: STEPHEN P. WOOD -- ACTING CHIEF COUNSEL, NHTSA TO: JIM BOWEN -- VICE PRESIDENT OF QUALITY, SERVICE AND PARTS, GULF STREAM COACH, INC. TITLE: N ATTACHMT: LETTER DATED APRIL 20, 1989 TO OFFICE OF CHIEF COUNSEL FROM JIM BOWEN, GULF STREAM COACH, INC. ATTACHED. TEXT: This responds to your letter concerning the installation of a television receiver in view of the driver of a vehicle. You asked whether the television is required to be off, when the ignition switch is turned on. I regret the delay in responding. Your question is responded to below. By way of background information, the National Highway Traffic Safety Administration (NHTSA) does not provide approvals of motor vehicles or motor vehicle equipment. Under the National Traffic and Motor Vehicle Safety Act, it is the responsibility of th e manufacturer to ensure that its vehicles and equipment meet applicable standards. The following represents our opinion based on the facts provided in your letter. I have enclosed a copy of a June 4, 1987 letter, addressed to Panasonic, which discusses a number of issues relating to the installation of television receivers in motor vehicles. The letter notes that NHTSA does not have any safety standards specifical ly covering television receivers. The letter also explains that is possible that the installation of a television receiver could affect the compliance of a vehicle with some safety standards. With respect to your specific question concerning whether a television receiver installed in view of the driver of a vehicle is required to be off when the ignition is turned on, I would like to draw your attention to one requirement of Standard No. 101, Controls and Displays. Section S5.3.5 of that standard reads as follows: Any source of illumination within the passenger compartment which is forward of a transverse vertical plane 4.35 inch (110.6 mm) rearward of the manikin "H" point with the driver's seat in its rearmost driving position, which is not used for the controls and displays regulated by this standard, which is not a telltale, and which is capable of being illuminated while the vehicle is in motion, shall have either (1) light intensity which is manually or automatically adjustable to pr ovide at least two levels of brightness, (2) a single intensity that is barely discernible to a driver who has adapted to dark ambient roadway conditions, or (3) a means of being turned off. This requirement does not apply to buses that are n ormally operated with the passenger compartment illuminated. The purpose of this requirement is to prevent glare visible to the driver. If a television receiver installed in view of the driver is capable of operation while the vehicle is in motion, it would be subject to this requirement. While NHTSA does not have any safety standards specifically covering television receivers, the installation of a television receiver in view of the driver which is capable of operation while the vehicle is in motion would raise obvious safety concerns re lated to possible driver distraction. If you are considering such installation, we recommend that you carefully evaluate the safety implications of such action. Finally, I note that state laws may cover the installation of television receivers in motor vehicles. The American Association of Motor Vehicle Administrators may be able to provide information on that issue. Its address is: 4200 Wilson Boulevard, Sui te 600, Arlington, Virginia 22203. Sincerely, |
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ID: nht89-3.10OpenTYPE: INTERPRETATION-NHTSA DATE: 10/06/89 FROM: STEPHEN P. WOOD ACTING CHIEF COUNSEL NHTSA TO: SADATO KADOYA -- MAZDA RESEARCH & DEVELOPMENT OF NORTH AMERICA, INC. TITLE: NONE ATTACHMT: LETTER DATED 8/24/89, FROM SADATO KADOYA OF MAZDA TO STEPHEN WOOD OF NHTSA RE REQUEST FOR INTERPRETATION - FMVSS 108: LAMPS, REFLECTIVE DEVICE AND ASSOCIATED EQUIPMENT TEXT: Dear Mr. Kadoya: This is in reply to your letter of August 24, 1989, with respect to an interpretation of paragraph S5.3.1.8 of Standard No. 108, as it applies to the location of center highmounted stop lamps. The paragraph requires that no portion of the lens shall be lower than 3 inches below the rear window, if the lamp is mounted below the rear window. Your letter depicts two areas in which a lamp lens may be mounted, denoted "(A)" and "(B)". In both, th e lower edge of the rear window is curved. In "(A)", the boundary of the allowable area is curved, and follows the curve of the lower edge of the rear window at a parallel distance of 3 inches. In "(B)", the boundary of the allowable area is a straight line which measures 3 inches from the end of the lower edge of the rear window, but which is greater than 3 inches at all other points because of the curve of the window. The initial requirement of paragraph S5.3.1.8 is that the highmounted lamp be "mounted with its center on the vertical centerline of the passenger car as the car is viewed from the rear." This means that the 3-inch distance is measured from the lower edg e of the rear window that is at the vertical centerline. Thus, your "(A)" is the correct location because the boundary line is 3 inches directly below the center point of the vertical centerline, and your "(B)" is not acceptable because its boundary line is more than 3 inches below that point. I hope that this answers your question. Sincerely, |
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ID: nht89-3.11OpenTYPE: INTERPRETATION-NHTSA DATE: OCTOBER 10, 1989 FROM: J. DOUGLAS SMITH -- ENGINEERING MGR., DURALITE TRUCK BODY AND CONTAINER CORP. TO: TAYLOR VINSON -- LEGAL COUNSEL, NHTSA TITLE: NONE ATTACHMT: ATTACHED TO LETTER DATED 4-25-90 TO J. DOUGLAS SMITH FROM STEPHEN P. WOOD; (A35; STD. 108) TEXT: As an O.E.M. manufacturer of truck bodies, Duralite is responsible for final certification on literally thousands of new straight trucks. Recently however there has been some question regarding the interpre- tation of FMVSS 108 (lamps, reflective devices , and associated equipment). It is our understanding as well as industry standard that if a chassis cab is equipped with clearance and marker lamps, it is not necessary to add a second set of two lamps to act as clearance lamps to the front wall of the truck body. During the last week, a customer of ours received a warning for not having clearance lights in the proper location. Corporal Talbot of the Maryland State Police said that it was their interpretation that the cab mounted lights were sufficie nt and that a new officer had interpreted the meaning differently. A change in the interpretation of this standard would effect many thousands of vehicles already on the road. Of all the major truck body manufacturers there is only one of which I am aware that has body mounted clearance lamps visible to the front. To revise the standard at this point would cost fleets a great deal of time and money. As it is our responsibility to build and certify new units, your immediate attention and response to this situation would be greatly appreciated. If you have any question please feel free to contact me at (301) 727-6962.
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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.