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: 10-000710 A.Killian,Jr. (Standard No. 205)OpenArthur J. Killian, Jr. Hit Concepts Group P.O. Box 998 Sandusky, Ohio 44870 Dear Mr. Killian: This responds to your letter requesting an exemption for your invention, a laminated area embedded into the front driver side and passenger side windows to reduce headlight glare from the outside rearview mirrors. By way of background, NHTSA is authorized by the National Traffic and Motor Vehicle Safety Act (49 U.S.C. Chapter 301, Safety Act) to issue Federal motor vehicle safety standards (FMVSSs) that set performance requirements for new motor vehicles and new items of motor vehicle equipment. NHTSA does not provide approvals of motor vehicles or motor vehicle equipment. Instead, manufacturers are required to self-certify that their products conform to all applicable safety standards that are in effect on the date of manufacture. You describe your invention as a laminated area embedded into the front windows on both the driver and passenger sides. You state that the purpose of this invention is to reduce headlight glare from the outside rearview mirrors and that the driver will view the outside rearview mirrors through the laminated area. Based on your description, we assume that glazing embedded with your product might be installed on a new motor vehicle or installed as an aftermarket item. The following is a description of the relevant portions of the Safety Act and the FMVSSs that might apply to your invention, as well as exemption procedures. NHTSA has issued FMVSS No. 205, Glazing Materials, which establishes performance and location requirements for glazing materials for use in motor vehicles, including glazing intended for aftermarket replacement. FMVSS No. 205 incorporates an industry standard, the American National Standards Institute American National Standard for Safety Glazing Materials for Glazing Motor Vehicles and Motor Vehicle Equipment Operating on Land Highways-Safety Standard (ANSI/SAE Z26.11996). FMVSS No. 205 and ANSI/SAE Z26.11996 include, among other things, specifications for minimum levels of light transmittance and require 70 percent light transmittance in areas of glazing that are requisite for driving visibility. Such areas of glazing include all windows in passenger vehicles. Your invention would be embedded in glazing used in the front side windows on both the driver and passenger sides. Glazing embedded with the laminated area and intended to be installed in those locations must meet the 70 percent light transmittance requirement of FMVSS No. 205 and ANSI Z26.11996, as well as various other requirements. It appears from your description that the glazing would not meet the 70 percent light transmittance requirement. Specifically, you state, 65-35 to 70-30 light transmittance has gotten rave reviews by consumers who have viewed my after market part. We assume that this means that glazing embedded with your invention would have less than 70 percent light transmittance. Section 30112 of the Safety Act provides that no person shall manufacture for sale, sell, offer for sale, introduce or deliver for introduction in interstate commerce, or import into the United States any item of new motor vehicle equipment unless the equipment complies with all applicable safety standards and is so certified by its manufacturer. It would be a violation of this section of Federal law for any person to manufacture or sell any glazing material for use in motor vehicles unless the products comply with the applicable requirements of FMVSS No. 205. Further, it would be a violation of Federal law for any person to manufacture or sell a motor vehicle whose glazing does not comply with the performance and location requirements of FMVSS No. 205. The Safety Act permits vehicle manufacturers to petition for a temporary exemption from an FMVSS in specific limited situations. The procedures for applying for such an exemption can be found at 49 CFR Part 555. Accordingly, if eligible, an automobile manufacturer interested in equipping new motor vehicles with glazing embedded with the laminated area could apply for an exemption under this Part. However, this exemption is not available to equipment manufacturers. I hope this information is helpful. If you have further questions, please contact William Shakely of my staff at (202) 366-2992. Sincerely, O. Kevin Vincent Chief Counsel Ref: Standard No. 205 Dated: 6/22/12 |
2012 |
ID: 10006Open Mr. Paul L. Anderson Dear Mr. Anderson: This responds to your letter of May 19, 1994, requesting an interpretation of the requirements of S5.5.3(c) of Standard No. 217, Bus Emergency Exits and Window Retention and Release. Section S5.5.3(c) reads: Each opening for a required emergency exit shall be outlined around its outside perimeter with a minimum 3 centimeters wide retroreflective tape, either red, white or yellow in color ... Your letter states that you are unable to continuously outline the perimeter of the rear emergency doors on your school buses due to the proximity of door hinges, tail light lenses, and a rubber gasket between the bottom edge of the door and the bumper. You ask: Would we be in compliance with Reflective Tape requirements of FMVSS 217 if we put a continuous strip of tape across the top of both Emergency Rear Doors on the roof cap above the doors and down the left and right side of the double door opening with breaks in the tape for door hinges & tail light lenses. This would outline the Emergency Rear Doors on three sides. No tape would be put across the bottom? As an alternative, if the above is not acceptable, could we put tape across the bottom on the doors? As explained below, your planned placement for the top and sides of the door, and your alternative placement for the bottom of the door would be acceptable. In a July 7, 1993 letter to the Blue Bird Body Company, NHTSA stated: NHTSA interprets S5.5.3(c) to allow interruptions in the tape necessary to avoid and/or accommodate curved surfaces and functional components, such as rivets, rubrails, hinges and handles, provided, however, that the following requisites are met. In the November 2, 1992, final rule, NHTSA indicated that the purpose of the retroreflective tape would be to identify the location of emergency exits to rescuers and increase the on-the-road conspicuity of the bus. Accordingly, the retroreflective tape may have interruptions if they satisfy both of these purposes. The occasional breaks in the tape you described would not appear to negatively affect a rescuer's ability to locate the exits, or reduce the conspicuity of the bus. However, the tape should be applied as near as possible to the exit perimeter... When rivets are present, NHTSA will defer to a manufacturer's decision to apply the retroreflective tape immediately adjacent to the rivets, rather than over the rivets, if the manufacturer decides that this will increase the durability of the tape. According to this July 1993 letter, interruptions in the retroreflective tape to avoid and/or accommodate hinges (such as the hinge on the side of the rear emergency door) and other functional components are permitted if the interruption does not negatively affect a rescuer's ability to locate the exits, or does not reduce the conspicuity of the bus. NHTSA considers tail light lenses to be "functional components" which do not have to be covered by the retroreflective tape. (Indeed, placement of the tape on the tail light lense could affect the efficacy of the light.) The interruptions in the tape for these components would not appear to negatively affect a rescuer's ability to locate the exits, or reduce the conspicuity of the bus. Thus, the interruptions are permitted for the tape along the sides of your door. With regard to the bottom of your door, based on the pictures provided with your letter, it appears that there is no location available for the placement of retroreflective tape outside of the door's bottom edge. Since not outlining an entire side of an exit might affect a rescuer's ability to locate the exit and would reduce the conspicuity of the exit, the bottom side of the door must be marked with the retroreflective tape. In this situation, NHTSA interprets S5.5.3(c) as allowing placement of the retroreflective tape on the door itself, as near as possible to the lower edge of the door. I hope you find this information helpful. If you have any other questions, please contact Mary Versailles of my staff at this address or by phone at (202) 366-2992. Sincerely,
John Womack Acting Chief Counsel ref:217 d:6/8/94
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1994 |
ID: 12072.OGMOpenMr. Geoff Smith Re: Goal of FMVSS 218 "Motorcycle Helmets" Dear Mr. Smith: This is in response to your electronic mail message of June 17, 1996 to John Womack. As Mr. Womack explained in his electronic response, the National Highway Traffic Administration (NHTSA) is responding to your letter by conventional mail. Your message posed several questions relating to Federal Motor Vehicle Safety Standard No. 218, "Motorcycle Helmets" (Standard 218) that take issue with the agency's position that Standard 218's performance tests ensure that helmets will reduce deaths and injuries to motorcyclists resulting from head impacts. I will repeat your questions below (in italics), followed by the response. A. Since Standard 218 is only a series of bench test on helmets and does not involve any simulated crash tests, how do you claim that: "Standard 218 sets forth a series of performance tests to ensure that motorcycle helmets will reduce deaths and injuries to motorcyclists resulting from head injuries."???? Answer: The performance requirements of Standard 218 are intended to simulate conditions that may be encountered by a motorcyclist in an actual accident. For example, the impact attenuation requirements found in S5.1 of the Standard, in which a helmet is subject to a perpendicular impact onto a test anvil, are designed to replicate the vertical component of an angular or indirect impact at a much higher speed. As it is unlikely that a helmet would experience a direct perpendicular impact in a real accident, the selection of test criteria designed to simulate an angular impact is an appropriate performance test. Because Standard 218's performance tests are designed to simulate conditions that may be encountered in a crash and the existenceof the standard requires manufacturers to produce a helmet that will meet test requirements, Standard 218 helps to provide protection in the event of an accident. B. What is the connection between bench tests and actual crash situations? Do you have some other tests that will make this connection? I don't mean statistics claiming that helmets reduce injuries and deaths, I MEAN REAL, ACTUAL TESTS OF HOW PARTICULAR HELMETS PROTECT THE HUMAN HEAD IN A REAL CRASH???? Answer: As noted above, the performance requirements of Standard 218 are intended to simulate the conditions produced by a real crash. Studies performed by NHTSA contractors and others indicate that the performance tests incorporated in Standard 218 and other similar standards are representative of conditions encountered in real world crashes. NHTSA does not test helmets to any other standard other than Standard 218 and, for obvious reasons, has not considered testing using human subjects. C. Question No 1:
If you don't have this test(s), how can you claim that Standard 218 will "reduce deaths and injuries to motorcyclists ..."? (Please no statistics, just proven tests). Answer: As stated above, the performance tests incorporated into Standard 218 simulate conditions that may be encountered in real world crashes. NHTSA therefore believes that Standard 218 protects helmet users by requiring that helmets meet minimum performance requirements. D. Question No. 2:
And conversely, can helmets INCREASE the risk of death and injuries in some situations? Answer: While NHTSA is aware of claims by some individuals that helmets can increase the risk of injury in some types of crashes, the agency is not aware of any studies based on actual accident data that establish that helmets increase the risk of death or injury.
I hope that this information is helpful. If you have any questions, please contact me or Otto Matheke of my staff at 202-366-5253. Sincerely, John Womack Acting Chief Counsel
ref:218
d:10/23/96 |
1996 |
ID: 11495ZTVOpen Mr. Anil Anand Dear Mr. Anand: We have received your letter of December 14, 1995, with respect to obtaining "SAE/DOT approval" for certain items of motorcycle lighting equipment, specifically headlamps, taillamps, and "blinker lamp assy front/rear." By this, we believe you refer to "turn signal lamps." This is the term for them in the U.S. lighting standard, Federal Motor Vehicle Safety Standard No. 108 Lamps, Reflective Devices, and Associated Equipment. Your letter indicates that Fiem Industries will supply lighting equipment to a manufacturer of motorcycles who will install the equipment and export the completed motorcycle to the United States. Under our laws, before a motorcycle is admitted to the U. S., the manufacturer must place on it a label certifying that the motorcycle complies with all applicable U.S. Federal motor vehicle safety standards (including the lighting standard). Our laws do not require the motorcycle manufacturer to obtain SAE/DOT approval before this label is affixed. Indeed, we are not authorized to test a manufacturer's products and provide approvals. This self-certification process means that the motorcycle manufacturer must find its own ways of assuring itself that its vehicle complies with the U.S. standards before placing the label on it. It has asked Fiem to obtain SAE/DOT approval. This method is not possible. What is possible is for Fiem to have the lamps tested in India or the U.S. according to the test procedures specified in Federal Motor Vehicle Safety Standard No. 108 or the SAE Standards which are incorporated into it. If the lamps pass the tests, Fiem can show the test documentation to the motorcycle manufacturer as an assurance that the lamps have been designed to conform to U.S. requirements. However, because of production tolerances and the chance of human error, Fiem should retest production lamps from time to time to ensure that the lamps which it provides the motorcycle manufacturer continue to conform to U.S. requirements. Indeed, the motorcycle manufacturer should insist that Fiem do so (or conduct its own occasional verification testing). We are authorized to enforce the safety standards through our own tests, and if we find that Fiem's lighting equipment on the motorcycle does not conform, the motorcycle manufacturer will be required to recall the machines and repair them. It will also have to pay a civil penalty unless it can assure us that it exercised reasonable care. Thus its relationship with Fiem bears upon the question of whether it has exercised reasonable care. You also asked for "the procedure and test specifications." The requirements for taillamps are those of SAE J585e, September 1977. The requirements for turn signal lamps are those of SAE J588 NOV84, except that Standard No. 108 (a) allows motorcycle turn signal lamps to meet only one-half the minimum photometric values specified in Table 1 and Table 3 of SAE J588, and (b) requires the turn signal lamp to have an effective projected luminous area of not less than 3 1/2 square inches; for turn signal operating unit, SAE J589, April 1964; for turn signal flasher, SAE J590b, October 1965. The requirements for headlamps are those of SAE J584, April 1964. I am enclosing a copy of each of these, as well as the test procedures incorporated by reference in the SAE materials. However, under Standard No. 108, a motorcycle sold in the U.S. may also be equipped with one half of certain types of passenger car headlighting systems. We are not enclosing copies of passenger car headlighting standards. If the motorcycle manufacturer is intending to equip its vehicles with a headlighting system using a passenger car headlamp, please inform us of the type and we will be pleased to provide you with the appropriate standards. Although you did not ask about them, Standard No. 108 also requires motorcycles to be equipped with stop lamps, license plate lamps, and red and amber reflex reflectors. If you intend to supply these and have any questions about them or other motorcycle lighting requirements, you may FAX them to us at 202-366-3820, Attention: Taylor Vinson. Sincerely,
Samuel J. Dubbin Chief Counsel Enclosures ref:108 d:3/4/96
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1996 |
ID: nht80-3.13OpenDATE: 06/30/80 FROM: AUTHOR UNAVAILABLE; F. Berndt; NHTSA TO: Mercedes-Benz TITLE: FMVSS INTERPRETATION TEXT: FMVSS INTERPRETATION Mr. Craig Jones Mercedes-Benz One Mercedes Drive Montvale, New Jersey 07645 Dear Mr. Jones: This responds to the questions you raised with Stephen Oesch and John Carson on May 8, 1980, about Standard No. 101-80, Controls and Displays. your question concerned a heating and windshield defrosting and defogging system developed by Mercedes. As requested, I have enclosed the originals of the drawing and photoqraph of the system you left with the agency. The system consists of five controls: three rotating knobs, one of which controls the heat for the left side of the vehicle, one to control the heat on the right side, and one to control a fan. The other two controls are sliding levers, one of which directs the air flow to the windshield and the other directs air toward the floor. Your first question concerned the use of a green dot and the symbol specified by column 3 of Table 1 for identifying the defrosting and defogging system. You wish to place the symbol adjacent to the slide lever that controls air flow to the windshield and to place the green dot immediately below the symbol. The green dot would be used to identify the position on each of the other four controls that would provide the maximum defrosting or defogging of the windshield. Section 5.2.1 provides that the identifying symbol specified in column 3 of Table 1 "shall be placed on or adjacent to the control." The section also provides that "additional words or symbols may be used at the manufacturer's discretion for the purpose of clarity." In this case, Mercedes has properly identified the control used to defrost or defog the windshield (the slide that directs air to the windshield) with the symbol specified in column 3 of Table 1 and placed it adjacent to the control. In addition, Mercedes has used the green dot to identify the positions on the heating system needed to obtain maximum defrosting and defogging. Since the additional symbols clarify the use of the heating controls, the use of the green dot is permissible.
Your second question concerned the identification required for the heating system. Section 5.2.2 specifies that "Identification shall be provided for each function of any ...heating and air conditioning control, and for the extreme positions of any such control that regulates a function over a quantitative range." Section 5.2.2 further provides that "If this identification is not specified in Tables 1 or 2, it shall be in word form unless color coding is used. If color coding is used to identify the extreme positions of a temperature control, the hot extreme shall be identified by the color red and the cold extreme by the color blue." The rotary knobs Mercedes uses for the heating system control a single function over a quantitative range, from no heat to maximum heat and thus the extreme positions require identification. The rotary knob shown in your drawing does not comply with section 5.2.2 because it does not identify the extreme positions of the control either in words or in the color coding system required for temperature controls. Your final question concerned the identification necessary for the slide levers that control the air flow to the windshield or the floor. As mentioned above, section 5.2.2 specifies that "Identification shall be provided for each function of any...heating and air conditioning control, and for the extreme positions of any such control that regulates a function over a quantitative range." Section 5.2.2 further specifies that "If this identification is not specified in Tables 1 or 2, it shall be in word form unless color coding is used." The slide lever Mercedes uses for the air flow controls a single function over a quantitative range, from no air to maximum air, and thus the extreme positions require identification. Mercedes has used a series of geometric shapes-which are highlighted by a color (white) to indicate which direction to move the slide lever to obtain more air. That color in and of itself has no meaning and therefore, it is not part of a color coding system. Those geometric shapes must be accompanied by or replaced by words in order to identify the positions for minimum and maximum air or an appropriate color coding system should be used. If you have any further questions, please let me know. Sincerely, Frank Berndt Chief Counsel Enclosure |
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ID: nht94-3.25OpenTYPE: INTERPRETATION-NHTSA DATE: June 8, 1994 FROM: John Womack -- Acting Chief Counsel, NHTSA TO: Paul L. Anderson -- President, Van-Con Inc. TITLE: None ATTACHMT: Attached To Letter Dated 5/19/94 From John Womack To Paul Anderson TEXT: Dear Mr. Anderson: This responds to your letter of May 19, 1994, requesting an interpretation of the requirements of S5.5.3(c) of Standard No. 217, Bus Emergency Exits and Window Retention and Release. Section S5.5.3(c) reads: Each opening for a required emergency exit shall be outlined around its outside perimeter with a minimum 3 centimeters wide retroreflective tape, either red, white or yellow in color . . . Your letter states that you are unable to continuously outline the perimeter of the rear emergency doors on your school buses due to the proximity of door hinges, tail light lenses, and a rubber gasket between the bottom edge of the door and the bumper. You ask: Would we be in compliance with Reflective Tape requirements of FMVSS 217 if we put a continuous strip of tape across the top of both Emergency Rear Doors on the roof cap above the doors and down the left and right side of the double door opening with bre aks in the tape for door hinges & tail light lenses. This would outline the Emergency Rear Doors on three sides. No tape would be put across the bottom? As an alternative, if the above is not acceptable, could we put tape across the bottom on the doors? As explained below, your planned placement for the top and sides of the door, and your alternative placement for the bottom of the door would be acceptable. In a July 7, 1993 letter to the Blue Bird Body Company, NHTSA stated: NHTSA interprets S5.5.3(c) to allow interruptions in the tape necessary to avoid and/or accommodate curved surfaces and functional components, such as rivets, 2 rubrails, hinges and handles, provided, however, that the following requisites are met. In the November 2, 1992, final rule, NHTSA indicated that the purpose of the retroreflective tape would be to identify the location of emergency exits to rescuers an d increase the on-the-road conspicuity of the bus. Accordingly, the retroreflective tape may have interruptions if they satisfy both of these purposes. The occasional breaks in the tape you described would not appear to negatively affect a rescuer's ab ility to locate the exits, or reduce the conspicuity of the bus. However, the tape should be applied as near as possible to the exit perimeter . . . When rivets are present, NHTSA will defer to a manufacturer's decision to apply the retroreflective tap e immediately adjacent to the rivets, rather than over the rivets, if the manufacturer decides that this will increase the durability of the tape. According to this July 1993 letter, interruptions in the retroreflective tape to avoid and/or accommodate hinges (such as the hinge on the side of the rear emergency door) and other functional components are permitted if the interruption does not negativ ely affect a rescuer's ability to locate the exits, or does not reduce the conspicuity of the bus. NHTSA considers tail light lenses to be "functional components" which do not have to be covered by the retroreflective tape. (Indeed, placement of the ta pe on the tail light lense could affect the efficacy of the light.) The interruptions in the tape for these components would not appear to negatively affect a rescuer's ability to locate the exits, or reduce the conspicuity of the bus. Thus, the interru ptions are permitted for the tape along the sides of your door. With regard to the bottom of your door, based on the pictures provided with your letter, it appears that there is no location available for the placement of retroreflective tape outside of the door's bottom edge. Since not outlining an entire side of an exit might affect a rescuer's ability to locate the exit and would reduce the conspicuity of the exit, the bottom side of the door must be marked with the retroreflective tape. In this situation, NHTSA interprets S5.5.3(c) as allowing placement of the retroreflective tape on the door itself, as near as possible to the lower edge of the door. 3 I hope you find this information helpful. If you have any other questions, please contact Mary Versailles of my staff at this address, or by phone at (202) 366-2992. Sincerely, |
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ID: nht95-1.46OpenTYPE: INTERPRETATION-NHTSA DATE: February 2, 1995 FROM: Jeffrey D. Shetler -- Manager of Government Relations, Kawasaki Motors Corp., U.S.A. TO: Office of Chief Counsel -- NHTSA TITLE: Subject: Motorcycle Turn Signal Pilot Indicator Interpretation of FMVSS 108 ATTACHMT: ATTACHED TO 5/3/95 LETTER FROM JOHN WOMACK TO JEFFREY D. SHETLER (A43; Std. 108) TEXT: Dear Sir/Madam: Kawasaki Motors Corp., U.S.A. is hereby requesting an interpretation from NHTSA regarding the applicability to motorcycles of the Turn Signal Pilot Indicator Lamp requirements within Section 5.4.3.3 of SAE J588 NOV84. When reviewing Table III of FMVSS 108 (Required Motor Vehicle Lighting Equipment) and its applicability to motorcycle turn signal lamps, we are referred to SAE J588, November 1984. SAE J588 not only specifies turn signal lamp requirements but also speci fies other related requirements such as the need for a turn signal pilot indicator lamp, if the turn signal lamps are not readily visible to the driver. Section 5.4.3.3 of SAE J588 NOV84 indicates the illuminated turn signal pilot indicator lamp, if located on the outside of the vehicle, should emit a yellow colored light. All Kawasaki motorcycles designed for use on public roads and sold in the United States are equipped with turn signal lamps meeting the requirements of FMVSS 108. In addition, all Kawasaki motorcycles having turn signal lamps are equipped with an illumi nated pilot indicator lamp (yellow colored). Table III within FMVSS 123; Motorcycle Controls and Displays, specifies requirements for turn signal lamp identification. However, FMVSS 123 does not specify color requirements for the turn signal pilot indicator lamp. In future model years, Kawasaki would like to change the current yellow colored light that illuminates our motorcycle turn signal pilot indicator lamps to a green colored light. However, when reviewing SAE J588 NOV84 and FMVSS 123, we cannot determine w ith confidence if it would be allowed. When reviewing the language within Section 5.4.3.3 of SAE J588 NOV84, it seems evident this section was written with passenger cars in mind and not motorcycles. "5.4.3.3 - If the illuminated indicators are located on the outside of the vehicle, for exam ple on the front fenders, they should emit a yellow colored light and have a minimum projected illuminated area of 60 mm." It is our belief the color and area requirements are specified within this section to insure visibility by the driver because the l ocation of the indicator lamp would be a greater distance away from the drivers eye than a indicator lamp located inside the vehicle on the dash panel. FMVSS 123 does not need to address distance from the drivers eye, color, or size of the turn signal pilot indicator lamp because the location of the indicator lamp will always be within a reasonable distance from the drivers eye. Motorcycle turn signal pilot indicator lamps are, in most cases, located within the main instrument panel of the motorcycle with other instrumentation such as speedometer, tachometer, oil pressure gage or warning light, fuel level gage, and transmission neutral indicator. The main instrument panel on motorcycles is usually located between the handlebars and the headlamp. In some cases, motorcycle turn signal pilot indicator lamps are located away from the main instrument panel on the fuel tank, or wit hin a separate panel between the motorcycles fuel tank and handlebars. When considering these locations and their distance from the drivers eye, we believe any pilot lamp light color would be acceptable. When reviewing current FMVSS requirements (FMVSS 108 / FMVSS 123), we believe we are not limited to using only a yellow color for the lamp of our turn signal pilot indicators because FMVSS 123 does not specify color requirements for turn signal indicator lamps. However, as indicated above, we are not entirely confident our interpretation of the requirements is correct because of the yellow color requirement specified within Section 5.4.3.3 of SAE J588 NOV84. Therefore, we are requesting your assistance in resolving this matter. Thank you in advance for your timely response to our request. If further information is required, I can be reached at (714) 770-0400 ext 2456.
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ID: nht93-8.10OpenDATE: November 15, 1993 FROM: Richard L. Plath --Selecto-Flash, Inc. TO: Taylor Vinson -- Chief Counsel, NHTSA TITLE: None ATTACHMT: Attached to letter dated 11/30/93 from John Womack to Richard L. Plath (A41; Std. 108) TEXT: I know that Jim Peepas from our company has contacted you concerning the conspicuity program. I am responsible for sales for Selecto Flash and thought I would share with you some of the concerns of the various manufacturer's. In our discussions with the trailer and container manufacturer's who supply this equipment, there seems to be differences of opinion as to the actual requirements. For this reason I will outline the procedure as we understand it and will further ask for confirmation on several issues set forth within this letter. 1) A chassis for purposes of the conspicuity requirement shall be considered to be a trailer. 2) That the total length of the chassis shall be used in computing the 50 per cent coverage of high intensity reflective for each individual side. 3) In the case of a forty eight foot chassis, the law will thus require a minimum of 24 feet of the approved reflective sheeting to be applied to each side. Further, there shall not be more than 18 inches of either red or silver reflective in a continuous strip and that there shall not be an allowed void of more than 48 inches between modules. 4) It shall be recognized that a chassis may travel both with and without a container. In the case of a gooseneck chassis, the gooseneck portion is not visible when the chassis is loaded with a container. The gooseneck portion is generally about 8 feet in length. When the chassis is not loaded with a container, the application of 24 feet per side of a 48 foot chassis of evenly spaced reflective modules would comply with the law as we understand it. It would identify the extreme front and rear portions of the chassis. The confusion is the treatment of the same gooseneck chassis that is loaded with a container. It is our understanding that the requirements now are for the entire 24 feet (50 per cent of length) to be applied behind the gooseneck. In general this would mean that the rear 40 foot portion of the chassis would contain the 24 feet of reflective modules. Further, we understand that the 50 per cent requirement would be satisfied and that additional modules would not have to be applied to the gooseneck. If our interpretation is correct, then the gooseneck chassis illustrated above would be in violation if traveling without benefit of a container. The eight foot gooseneck would be dangerously unmarked creating a hazard and would violate the requirement stating that a void of no more than four feet is allowable. It is our feeling that since the chassis travels both loaded and unloaded, if the reflective modules were applied evenly spaced along the total length, that the spirit of the law would be realized. Is there a benefit in applying the additional 4 feet of reflective within the rear 40 foot portion of the chassis? If a chassis is considered to be a trailer for purposes of the conspicuity law, then the evenly spaced treatment would seem to be more consistent. We would appreciate a confirmation from your office indicating the legal application of the law as it pertains to gooseneck chassis. 1) Will we need to apply 24 feet of stripping on a forty eight foot chassis behind the gooseneck plus an additional 4 feet on the gooseneck? 2) Since a chassis is considered to be treated as a trailer, shouldn't we apply the 24 feet evenly spaced from the extreme rear and front portions of the chassis? 3) Is a tire considered a legal obstruction? If so, can we deduct the distance behind the tire from the 50 per cent coverage? 4) We anticipate that the slide mechanism on an extendable chassis will scrape the reflective film from off the chassis. Is the operator then subject to penalties? How will the operator be able to avoid these penalties since they have no control over this process? We hope that you can respond to these questions well in advance of the December 1st deadline. The application process has already begun and the manufacturer's need to finalize the process.
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ID: nht94-1.31OpenTYPE: Interpretation-NHTSA DATE: January 26, 1994 FROM: John Womack -- Acting Chief Counsel, NHTSA TO: Ramin Bogzaran -- General Manager, Remedquip International Manufacturing, Inc. TITLE: None ATTACHMT: Attached to letter dated 12/1/93 from Ramin Bogzaran to John Womack; Also attached to fax dated 12/15/93 from Ramin Bogzaran to Marvin Shaw; Also attached to letter dated 11/15/93 from Amar Chhabra to whom it may concern; Also attached to letter dated 11/30/93 from Lynn White to Jeff Boraston TEXT: This responds to your letter of December 1, 1993, in which you asked whether two trailers on which are mounted specialized equipment would be classified as motor vehicles. We are sorry we were unable to respond by your requested date of December 14, 199 3. You stated that the trailers in question were manufactured in Greenville, TN in 1991 and Shipped to a company in Canada which is no longer in business. A transportable soil remediation plant was mounted on the trailers, but they have not been used or mo ved since their delivery. You stated that you now expect to import the trailers with their mounted equipment into the U.S. for use as a transportable soil remediation plant. You stated that the trailers will not be registered and will be moved only wit h permits because the anticipated projects for the equipment are long term and "the trailers will hardly see the road in their lifetime." You stated that the trailers will be inspected before they are moved to assure their safety, and that you will assu re the safety of the equipment on the road while transporting it from Vancouver, Canada to your shop in San Diego, CA. You enclosed with your letter a certificate of origin, pictures of the trailers with the equipment mounted thereon, a letter from the company that originally purchased the trailers, and a letter from the manufacturer of the trailers. By way of background information, the National Traffic and Motor Vehicle Safety Act of 1966, 15 U.S. Code S1381 to S1431, as amended (Safety Act), authorizes the National Highway Traffic Safety Administration (NHTSA) to issue Federal Motor Vehicle Safety Standards applicable to new motor vehicles or new items of motor vehicle equipment manufactured or imported for sale in the U.S. The term "motor vehicle" is defined in the Safety Act as: (A)ny vehicle driven or drawn by mechanical power manufactured primarily for use on the public streets, roads, and highways, except any vehicle operated exclusively on a rail or rails. NHTSA has interpreted that language as follows. Vehicles that are equipped with tracks or that are otherwise incapable of highway travel are clearly not motor vehicles. In addition, vehicles designed and sold solely for off-road use, such as airport ru nway vehicles and underground mining devices, are not considered motor vehicles, even though they may be operationally capable of highway travel. Vehicles that have an abnormal body configuration that readily distinguishes them from other highway vehicl es and that have a maximum speed of 20 miles per hour are not considered motor vehicles, nor is equipment that uses the highways solely to move between job sites and which typically spends extended periods of time at a single job site. Those vehicles or equipment are not considered motor vehicles because their intended use of the public roads is intermittent and incidental to their primary off-road use. Based on your representations that your trailers will be utilized on long-term off-road projects, they would not be classified as motor vehicles. Therefore, they would not be subject to the U.S. Federal motor vehicle safety standards nor the import requ irements of 49 CFR 591.5. That determination, however, does not mean that the trailers would necessarily be exempt from state motor vehicle requirements, especially the states through which you intend to transport the equipment from Vancouver to San Die go. For information on state laws in that regard, you may contact the American Association of Motor Vehicle Administrators, 4200 Wilson Boulevard, Suite 600, Arlington, VA 22204, (703) 522-4200. I hope this information is helpful to you. Should you have any further questions or need additional information, please feel free to contact Walter Myers of my staff at this address or at (202) 366-2992. |
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ID: nht95-2.91OpenTYPE: INTERPRETATION-NHTSA DATE: May 19, 1995 FROM: Milford R. Bennett -- Director, Safety Affairs, Safety & Restraints Center, General Motors; Signature by F. Laux TO: John Womack, Esq. -- Acting Chief Counsel, NHTSA TITLE: Subject: Request for FMVSS 205 Interpretation; USG 3183 ATTACHMT: ATTACHED TO 9/19/95 LETTER FROM JOHN WOMACK TO MILFORD BENNETT (A43; REDBOOK 2; STD. 205) TEXT: Dear Mr. Womack: The purpose of this letter is to request an interpretation of FMVSS 205. Specifically, General Motors seeks the agency's concurrence that a vehicle equipped with a particular rear window sunshade meets the light transmissibility requirements of FMVSS 205 . General Motors plans to offer a rear window sunshade in a near-future Cadillac model. The sunshade is a screen-like device that significantly reduces the light and heat load entering through the backlite. In its raised position, the sunshade covers app roximately 90% of the backlite area, and the light transmissibility through the combined backlite and sunshade is less than 70%. In its retracted position, the sunshade is stowed in the panel shelf area below the backlite, such that no portion of the bac klite is obscured. A driver operated switch on the instrument panel is used to electrically raise and lower the sunshade. FMVSS 205 requires a minimum of 70% light transmissibility through glazing that is requisite for driving visibility. The agency has historically interpreted the backlite of passenger cars to be requisite for driving visibility. General Motors seeks the Chief Counsel's interpretation that the proposed sunshade comports with the transmissibility requirements of FMVSS 205. Our reasons for believing that a vehicle equipped with the sunshade would continue to comply with FMVSS 205 are summarized as follow s: * The rear window sunshade would have no adverse effect on motor vehicle safety. As with conventional windshield sunvisors, drivers can be expected to utilize the sunshade in a way that will maximize, rather than diminish, driving safety and comfort. Wi th the sunshade in its raised position, trailing vehicles and other objects are readily visible through the screen mesh. Driver and passenger side outside rearview mirrors further provide for rearward visibility, comparable to other passenger carrying v ehicles (light trucks, vans, multipurpose passenger vehicles) which are not required by FMVSS 205 to have 70% light transmittance in the backlite area. * The sunshade is not glazing material, nor is it in contact with glazing material. FMVSS 205 states that: "This standard specifies requirements for glazing materials for use in motor vehicles and motor vehicle equipment." * The rear window sunshade is fully analogous to conventional windshield sunvisors. In both cases, the driver-selectable device can be positioned in a way that reduces effective transmissibility below 70%, and then easily stowed when not needed to resto re full transmittance. * There is a well established international precedent for rear window sunshades. European and Japanese regulatory authorities have explicitly recognized and accepted these devices. General Motors is aware of previous Chief Counsel interpretations stating that the transmissibility requirements of FMVSS 205 must be met with a rear window sunscreen in position. (Reference Ms. Erika Jones letter to Mr. T. E. McConnell dated September 22, 1986, and Ms. Erika Jones letter to Ms. Susan B. House dated December 22, 1985.) We believe there is a critical distinction between the products the agency has previously commented on and the rear window sunshade GM contemplates. Specifically, the e arlier products were apparently tinting materials applied to the backlite, or shade devices that physically contacted the backlite via attaching hardware. By virtue of being in physical contact with the backlite, these earlier sunscreening products coul d be interpreted as being part of the backlite. The rear window sunshade GM plans to install will not be attached to the backlite in either the raised or stowed position, and therefore is clearly not part of the backlite glazing subject to FMVSS 205. We would appreciate a favorable response at the agency's earliest convenience. In order to accommodate our product plans for the sunshade device, we would like to obtain a response by July, 1995, if possible. If there is any additional information we ca n provide to help expedite the agency's review, please contact Mr. Philip Horton (810-947-1738), Mr. Richard Humphrey of our Washington office (775-5071), or me (810-947-0149). Thank you. |
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.