
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: 10-001831 106OpenMr. Matt Miller DMJ Corporation P.O. Box 299 Hamel, MN 55304-0299 Dear Mr. Miller: This responds to your letter asking whether DMJ Corporation (DMJ) would be considered a brake hose assembly manufacturer subject to Federal Motor Vehicle Safety Standard (FMVSS) No. 106, Brake Hoses (49 CFR 571.106), if it assembles brake hose and end fittings for its own use. The answer is no. In your letter, you explain that DMJ owns trucks and trailers. You wish to know whether, when the brake hoses on those vehicles must be replaced, they can be replaced by brake hose assemblies manufactured by DMJ itself. You plan to take rubber hose and end fittings manufactured by other companies and completing them into brake hose assemblies for use on your vehicles. You provided printouts (from what appears to be www.Gates.com) of air brake hose and air brake end fittings that you are considering using.
By way of background information, NHTSA is authorized by the National Traffic and Motor Vehicle Safety Act (Safety Act) to issue and enforce the FMVSSs 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 certify that their vehicles and equipment meet applicable standards. NHTSA also investigates safety-related defects. NHTSA has issued FMVSS No. 106 specifying labeling and performance requirements for motor vehicle brake hose, brake hose assemblies, and brake hose end fittings. In response to your question, brake hose assembly is defined in S3 of FMVSS No. 106 as follows: Brake hose assembly means a brake hose, with or without armor, equipped with end fittings for use in a brake system, but does not include an air or vacuum assembly prepared by the owner or operator of a used vehicle, by his employee, or by a repair facility, for installation in that used vehicle. Based on the information you provided, we understand that DMJ will be preparing air brake hose assemblies for installation in its used vehicles. You have advised us that you are making the air brake hose assemblies only to replace hose on trucks and trailers owned by DMJ.
Thus, the definition of brake hose assembly would not include DMJs assemblage of the hose and end fitting. DMJ would thus not be considered a brake hose assembler and would not have to meet FMVSS No. 106 requirements for air brake hose assemblies at S7.2.3. Note that the assemblies you manufacture are considered motor vehicle equipment under the Safety Act. Manufacturers of motor vehicles and motor vehicle equipment must ensure that their products are free of safety-related defects. In addition, if DMJs trucks and trailers are commercial motor vehicles, the Federal Motor Carrier Safety Administration (FMCSA) and appropriate State Department of Transportation agencies may have requirements for your brake hose assemblies. For information about FMCSA requirements, please contact that agency at: 1200 New Jersey Avenue SE, Washington, DC, 20590, telephone 1-800-832-5660, www.fmcsa.dot.gov. I hope this information is helpful. If you have any questions, please contact Ms. Dorothy Nakama of my staff at (202) 366-2992.
Sincerely yours, O. Kevin Vincent Chief Counsel Dated: 6/24/2010 |
2010 |
ID: 10-003161 Honda 110 label march 16 dfOpenJay Joseph, Senior Manager Product Regulatory Office American Honda Motor Co., Inc. 1919 Torrance Boulevard Torrance, CA 90501-2746 Dear Mr. Joseph: This responds to your letter asking whether your method of presenting the designated seated capacity of a vehicle meets a labeling requirement in S4.3 of Federal Motor Vehicle Safety Standard (FMVSS) No. 110.[1] Our answer is yes. S4.3 of the standard requires each vehicle to show certain information, specified in S4.3(a) through (g) of the standard, on a placard permanently affixed to the vehicle at a specified location. Your question pertains to the information specified by S4.3(b). That section states: (b) Designated seated capacity (expressed in terms of total number of occupants and number of occupants for each front and rear seat location)[.] In addition, among other things S4.3 states: This information shall be in the English language and conform in color and format, not including the border surrounding the entire placard, as shown in the example set forth in Figure 1 in this standard. Figure 1 of the standard shows that for SEATING CAPACITY, the terms set forth on the depicted label are: TOTAL, FRONT, AND REAR. Hondas Placard
You ask about the placard from a Model Year 2010 Odyssey LX, which has one front row and two rear rows. For this vehicle, the placard sets forth SEATING CAPACITY information for the TOTAL capacity, and for the FRONT, SECOND, and THIRD rows. Unlike the example placard shown in Figure 1 of the standard, your placard for this vehicle does not provide a single number for rear seats. The question you present is whether presenting the seating capacity information for the second and third rows in the vehicle, rather than for the entire rear, meets S4.3 of FMVSS No. 110. You believe that presenting the Odysseys rear seating capacity information by rows meets S4.3(b) and is the most beneficial method of providing this information to consumers due to variations in rear seating capacity and configuration among a vehicles models and trim levels. You explain that a vehicle such as the Honda Odyssey minivan has different trim levels, including LX, EX, EX-L, and Touring models. The LX model has a seating capacity of 7 occupants, with two designated seating positions each in the front and second rows, and three in the third row. The EX, EX-L, and Touring models are configured for 8 occupants, two in the front row and three designated seating positions each in the second and third rows. You believe that providing the maximum seating capacity per row of seating gives the consumer valuable information about the safe operation of the vehicle. Response
Our response is that your method of providing the vehicles designated seated capacity, expressing the number of occupants for each of the two rear rows rather than for the entire rear, meets S4.3. Under S4.3(b), the placard must provide the designated seated capacity, expressed in terms of total number of occupants and number of occupants for each front and rear seat location. We believe that the Odysseys placard, specifying the seating capacity for each row of seats, satisfies the requirement to express the vehicles designated seating capacity in terms of the number of occupants for each front and rear seat location. In this instance, specifying the number of seats in each rear row will help a consumer determine whether the second row of seats has either two or three designated seating position depending on the vehicles trim level. We recognize that in a preamble responding to a petition for reconsideration, NHTSA interpreted S4.3(b) as not permitting the placard to indicate the rear seating capacity by row.[2] The agency sought to limit information that could overcrowd the placards rich content. For example, a vehicle with many rows of seating would make the placard difficult to read if it had text describing the vehicles seating capacity for individual rows. However, with regard to the Odysseys placard, we believe that your manner of expressing the number of occupants for each rear row expresses the number of occupants for each rear seat location, in accordance with S4.3(b). Further, the sample Odyssey placard you provide in your letter shows the information for the seating capacity in a single line of legible text. This is important because S4.3 of FMVSS No. 110 states that This information [set forth in S4.3(a) through (g)] shall be in the English language and conform in color and format, not including the border surrounding the entire placard, as shown in the example set forth in Figure 1 in this standard. We believe format as used in this context refers to features such as the size, shape, layout and arrangement of the information. Your placard appears to preserve the format and relative size of the information shown in the example placard shown in Figure 1. The rear capacity of the Odyssey is shown in a single line of text in the location where Figure 1 shows the REAR capacity. We conclude that your placards seating capacity information conforms to the format provided in Figure 1. If you have any further questions, please contact Deirdre Fujita of my staff at this address or by telephone at (202) 366-2992. Sincerely yours, O. Kevin Vincent Chief Counsel 5/31/2011 |
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ID: 10-004142 -- Toyota CAFE credit transfer banking -- 5 Jul 11 final for signatureOpenTom Stricker Director-Corporate Manager Toyota Motor North America, Inc. Suite 910 South 601 13th Street, NW Dear Mr. Stricker: This responds to your letter dated June 10, 2010 concerning the definition of the term transfer, as used in relation to Corporate Average Fuel Economy (CAFE) credits. You asked several questions relating to the revision to the definition of transfer in the April 2010 final rule establishing CAFE standards for model years 2012-2016. By way of background, credits are earned by automobile manufacturers for over-compliance with passenger car and light truck CAFE standards, and may be used by the manufacturer to make up shortfalls in different model years and different compliance categories, subject to certain statutory and regulatory constraints, and may also be provided to or acquired from other manufacturers. Manufacturers have been able to carry-forward[1] and carry-back[2] CAFE credits since the early 1980s, but NHTSA only gained authority to permit credit trading and transferring as part of the Energy Independence and Security Act (EISA) of 2007.[3] NHTSA established 49 CFR Part 536 in 2009 to implement a program pursuant to this authority, and defined credit transfer as the application by a manufacturer of credits earned by that manufacturer in one compliance category [domestic passenger cars, imported passenger cars, light trucks] or credits acquired by trade (and originally earned by another manufacturer in that category) to achieve compliance with fuel economy standards with respect to a different compliance category. For example, a manufacturer may purchase light truck credits from another manufacturer, and transfer them to achieve compliance in the manufacturers domestically manufactured passenger car fleet.[4] As a way to improve the transferring flexibility mechanism for manufacturers, as part of the rulemaking establishing CAFE standards for MYs 2012-2016, NHTSA clarified its interpretation of EISA, saying that EISA allowed the banking of credits for use in later model years. The agency amended the definition of transfer accordingly. Specifically, we added the following sentence to the end of the above definition of transfer: Subject to the credit transfer limitations of 49 U.S.C. 32903(g)(3), credits can also be transferred across compliance categories and banked or saved in that category to be carried forward or backward later to address a credit shortfall.[5] You have asked several questions with regard to this revision to the definition of credit transfer, which we will answer in turn below. 1. Does the revised definition apply to MY 2011 and later credits, and may such credits be transferred across compliance categories in the same or later model year and banked or saved in that compliance category, subject to the limitations specified by 49 U.S.C. 32903(g)(3) and the adjustment factor specified at 49 CFR 536.4(c)? Answer: Yes, this is correct. We note that credits are not adjusted until they are actually used for compliance purposes. See 49 CFR 536.4(c) and 536.5(d)(5). 2. Once transferred, are such credits considered to be credits within the compliance category to which they were transferred, and may they be applied without further adjustment, in the same manner as a credit that was generated as a result of over-compliance in that compliance category? Answer: No, this is incorrect. 49 CFR 536.4(c) states clearly that the adjustment factor is applied to credits when traded or transferred and used, and 536.5(d)(5) similarly states that the value of traded or transferred credits is adjusted when used for compliance. (Emphasis added.) Thus, when credits are transferred and banked, they are simply stored in the compliance category to which they are transferred, but they retain their original character and value until they are used for compliance, at which time they are adjusted. 3. Does 49 U.S.C. 32903(g)(3) limit the credits that can be transferred into a compliance category in a given model year? Answer: 49 U.S.C. 32903(g)(3) limits the maximum CAFE increase in any compliance category attributable to the application of credits earned in a different compliance category to 1.0 mpg for model years 2011-2013; to 1.5 mpg for model years 2014-2017; and to 2.0 for model years 2018 and beyond. The statute does not limit how many credits may be transferred in a given model year, rather it limits the application of transferred credits to improve fuel economy in a compliance category. Thus, manufacturers may transfer as many credits into a compliance category as they wish, but transferred credits may not increase a manufacturers CAFE level beyond the statutory limits. 4. Given the transfer cap in 32903(g)(3), is there a limit on how many credits can be transferred out of a compliance category in a given model year, or a limit on transferring credits from one compliance category to multiple compliance categories in the same model year or across model years, as long as the transfer cap in 32903(g)(3) and the adjustment factor in 49 CFR 536.4(c) are not violated? Answer: Again, manufacturers may transfer as many credits out of a compliance category to either of the other compliance categories as they wish, but transferred credits may not increase a manufacturers CAFE level beyond the statutory limits. Furthermore, the adjustment factor is only relevant when the transferred credits are used for compliance; they are not applied at time of transfer. 5. Is the expiry date of transferred credits established by the model year in which such credits are originally earned, regardless of the model year or compliance category to which they are transferred? Answer: Yes, this is correct. Please see the definitions for credits and expiry date in 49 CFR 536.3. 6. When a compliance category has a shortfall in a given model year, is there any restriction on the order in which available banked credits and available transfer credits must be applied? E.g., could a manufacturer meet a shortfall by carrying forward available credits banked in that compliance category, and then transfer additional credits into that compliance category to be banked or saved, subject to the limitations of 32903(g)(3) and the adjustment factor in 49 CFR 536.4(c)? Answer: Your example is correct. Part 536 is intended to give manufacturers maximum flexibility to apply credits in the manner that they deem most appropriate, thus there is no restriction on the order in which available banked credits and available transferred credits can be applied to a shortfall. As long as the credit transfer cap of 32903(g)(3) is not violated, and as long as the adjustment factor in 49 CFR 536.4(c) is properly applied when the banked credits are used, the situation described should be permissible. If you have any further questions, please feel free to contact Rebecca Yoon of my staff at (202) 366-2992. Sincerely yours, /s/ O. Kevin Vincent Chief Counsel Ref: Part 536 7/6/11 [1] That is, apply credits earned for a fleets over-compliance in one year to a shortfall for that same fleet in a subsequent model year (e.g., credit earned for over-compliance with the MY 2000 light truck standard could be applied to a shortfall with respect to the MY 2002 light truck standard). [2] That is, apply credits earned for a fleets over-compliance in one year to a shortfall for that same fleet in a previous model year (e.g., credit earned for over-compliance with the MY 2000 light truck standard could be applied to a shortfall (or deficit) with respect to the MY 1998 light truck standard). [3] See 49 U.S.C. 32903(f) and (g). [4] We note that credit transfers are also subject to the limitation in 49 U.S.C. 32903(g)(4) , which requires manufacturers to meet the minimum standards for domestically-manufactured passenger cars without the use of transferred credits. [5] See 74 Fed. Reg. 49454, 49736-37 (Sept. 28, 2009) and 75 Fed. Reg. 25324, 25665-66 (May 7, 2010) for NHTSAs discussion of this issue in the MYs 2012-2016 CAFE standards rulemaking. |
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ID: 10-004510ws SavidgeOpen
Keith A. Savidge, Esq. Seeley, Savidge, Ebert & Gourash Co., LPA 26600 Detroit Road Cleveland, Ohio 44145 Dear Mr. Savidge: This responds to your letter dated June 25, 2010, asking whether the SM Series Trommels distributed by your client, Doppstadt US, are motor vehicles regulated by the National Highway Traffic Safety Administration (NHTSA). Our answer is no. 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. NHTSA selects a sampling of new vehicles and equipment each year to determine their compliance with applicable FMVSSs. If our testing or examination reveals an apparent noncompliance, we may require the manufacturer to remedy the noncompliance, and may initiate an enforcement proceeding if necessary to ensure that the manufacturer takes appropriate action. NHTSA also investigates safety-related defects. The following is our interpretation of the FMVSSs based on the description in your letter. You state that the SM Series Trommels are non-self-propelled separators of forestry and other recycled products. You further state that the trommels do not move under their own power and are only periodically towed on public roads for use in other locations. Finally, you state that the majority of units remain at a single location during their entire operating lifetime. The websites of Doppstadt US, www.doppstadtus.com, and the manufacturer Doppstadt, www.doppstadt.com, indicate that the trommels are available with dual-axle or tracked chassis. These websites[1] also indicate that some of the trommels are capable of self-propelled drive but that this feature is intended only for movement at the jobsite.
The Safety Act (49 U.S.C. Section 30102(a)(6)) defines a motor vehicle as: A vehicle driven or drawn by mechanical power and manufactured primarily for use on public streets, roads, and highways, but does not include a vehicle operated only on a rail line. If a vehicle is a motor vehicle under the above definition, then it is regulated by NHTSA and must, among other things, comply with all applicable FMVSSs. Whether the agency considers your work units to be motor vehicles depends on the use of the vehicles. In past agency interpretations, we have determined that vehicles which are primarily used off-highway and which only incidentally use the highways (to move between jobsites) are not motor vehicles under the Safety Act. An example of this is mobile construction equipment which use the highway only to move between jobsites and which typically spend extended periods of time at a single jobsite. 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. However, certain types of construction equipment make more frequent use of the roadways, and the agency has determined that such equipment are motor vehicles under the Safety Act. For example, dump trucks have been determined to be motor vehicles because they regularly use the highways to travel between jobsites and stay on such jobsites for only a limited period of time, thereby rendering their on-highway use more than incidental. In past interpretations, we have determined that certain types of trommels and other screening equipment are not motor vehicles under the Safety Act. (See enclosed copies of April 26, 1993 letter to Mr. Jeff Gerner, and December 1, 1998 letter to Mr. Thomas W. Allison.) Based upon the depictions of the SM Series Trommels from the information you provided and the relevant websites, it appears that the units are designed to be primarily used at off-road jobsites for extended periods of time, but may occasionally be towed on highways from one jobsite to another. Thus, the on-highway transport of these units appears to be merely incidental to their use on jobsites. Based on the above information, we do not believe that the SM Series Trommels are motor vehicles under the Safety Act. This determination is based on the information provided. If in fact the units are using the roads and highways more than on an incidental basis, then the agency would reassess this interpretation.
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 Enclosures |
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ID: 10-004767 SleepyheadOpen
Joshua D. Levine, Esq. 0-99 Plaza Rd. Fair Lawn, NJ 07410
Dear Mr. Levine:
This responds to your letter dated July 8, 2010 asking about safety regulations for a device your client would like to manufacture, called the Sleepyhead. You state that the device is an accessory to a child car seat. The product is simply fitted over the car seat to prevent the childs head from slumping too far forward while a child is asleep. Photographs you enclose show the Sleepyhead used with a sleeping child in a child restraint. One end of the product appears to be fitted with elastic over the top of the restraints seat back, and the other end is fitted over the top of a childs head like a shower cap.
By way of background information, the National Traffic and Motor Vehicle Safety Act ("Safety Act," 49 U.S.C. 30101 et seq.) authorizes the National Highway Traffic Safety Administration (NHTSA) to issue safety standards for new motor vehicles and new items of motor vehicle equipment. NHTSA does not approve or certify any vehicles or items of equipment. Instead, the Safety Act establishes a "self-certification" process under which each manufacturer is responsible for certifying that its products meet all applicable safety standards. The agency periodically tests vehicles and items of equipment for compliance with the standards.
There is currently no Federal motor vehicle safety standard (FMVSS) that directly applies to an accessory item like the Sleepyhead. Under the authority of the Safety Act, NHTSA has issued Standard No. 213, Child Restraint Systems, which specifies requirements for child restraint systems used in motor vehicles. However, Standard No. 213 applies only to new child restraint systems and not to aftermarket components of a child restraint system, such as the Sleepyhead.
However, there are other Federal laws that indirectly affect the manufacture and sale of the device. Under the Safety Act, the product is considered to be an item of motor vehicle equipment. As a manufacturer of motor vehicle equipment, your client is subject to the requirements in the Safety Act concerning the recall and remedy of products with safety related defects. I have enclosed an information sheet that briefly describes those responsibilities. In the event that your client or NHTSA determines that the product contains a safety-related defect, your client would be responsible for notifying purchasers of the defective equipment and remedying the problem free of charge.
In addition, manufacturers, distributors, dealers, and motor vehicle repair businesses are subject to 30122(b) of the Safety Act, which states, in pertinent part: "A manufacturer, distributor, dealer, or motor vehicle repair business may not knowingly make inoperative ... any part of a device or element of design installed on or in a motor vehicle or motor vehicle equipment in compliance with an applicable motor vehicle safety standard prescribed under this chapter...." It appears unlikely from the nature of the product that it would be installed in vehicles by commercial businesses. However, if the product were to be installed by persons listed in 30122(b), the entities should ensure that the installation does not compromise the safety protection provided by a child restraint system.
The make inoperative prohibition does not apply to the actions of vehicle owners in adding to or otherwise modifying their vehicles or items of motor vehicle equipment. Nonetheless, NHTSA urges owners not to undertake modifications that would reduce the efficacy of any safety device or element of design. Products should not constrain the childs head against the child restraint in a manner that would be harmful to a child while riding in the child restraint or in a crash.
States have the authority to regulate the manner in which vehicles or equipment are used. You should thus check with State law to see if there are restrictions on the use of equipment items such as the Sleepyhead.
I hope this information is helpful. If you have further questions, please contact Deirdre Fujita of my staff at (202) 366-2992.
Sincerely,
O. Kevin Vincent Chief Counsel Enclosure
5/31/2010 |
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ID: 10-005845 Sorrell drn.docOpen
Elizabeth D. Sorrell, Esq. Law Offices of Tom McGrath 813 Diligence Drive, Suite 121-E Newport News, VA Dear Ms. Sorrell: This responds to your request for an interpretation regarding the DOT symbol on the label specified in Federal Motor Vehicle Safety Standard (FMVSS) No. 218, Motorcycle h Mr. William Gannon, II remains the same. The answer is yes, with regard to the first question. We would like to add clarification with regard to the second question. The two questions posed in Mr. Gannons letter are: 1) In the letter to Mr. Gannon, we stated: Federal law does not prohibit the helmets owner or any other person that is not a manufacturer, distributor, dealer, or repair business from removing or covering the label from a motorcycle helmet. Thus, the owner of a motorcycle helmet is permitted to remove or cover the label from his or her helmet for any reason without violating any provision of Federal law or Standard No. 218. That response to Mr. Gannons letter continues to be valid with regard to Federal law. However, I would add that the letter to Mr. Gannon did not address State law requirements that may prohibit an owner from removing or obscuring the DOT label. You should contact your I hope this information is helpful. If you have any further questions, please feel free to contact Dorothy Nakama of my staff at (202) 366-2992. Sincerely, O. Kevin Vincent Chief Counsel 5/31/2011 |
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ID: 10-005859 df samaniOpenMr. Nasser Zamani, Senior Manager Compliance and Regulatory Affairs Daimler Trucks North America LLC 4747 N. Channel Ave. Portland, OR 97217-7699 Dear Mr. Zamani: This responds to your request for assurance that we will apply a tolerance when measuring the width of flexible occupant seats, in testing school buses for compliance with Federal Motor Vehicle Safety Standard (FMVSS) No. 222, School bus passenger seating and crash protection. We regret to inform you that this letter is unable to provide a tolerance. You ask about a flexible occupancy seat, which is defined in S4 of FMVSS No. 222 as: a bench seat equipped with Type 2 seat belts that can be reconfigured so that the number of seating positions on the seat can change. The seat has a minimum occupancy configuration and a maximum occupancy configuration, and the number of passengers capable of being carried in the minimum occupancy configuration must differ from the number of passengers capable of being carried in the maximum occupancy configuration. S4.1 of FMVSS No. 222 specifies how the National Highway Traffic Safety Administration (NHTSA) will determine the number of seating positions and seat belt positions on a bench seat, including flexible occupancy seats. S4.1(c) states: Except as provided in S4.1(d), the number of Type 2 seat belt positions on a flexible occupant seatis expressed by the symbol Y, and calculated as the seat bench width in millimeters [(mm)] divided by 380 and rounded to the next lowest whole number. See Table 1 [of the standard] for an illustration. S4.1(d) states: A flexible occupancy seat meeting the requirements of S4.1(c) may also have a maximum occupancy configuration with Y +1 Type 2 seat belt positions, if the minimum seat bench width for this configuration is Y +1 times 330 mm. See Table 1 [of the standard] for an illustration. (Emphasis added.) Request for Tolerances You indicate that your flexible occupancy seat has an occupancy configuration of two Type 2 seat belt positions large enough for mid-size adult males under S4.1(c) and an occupancy configuration of three seat belt positions for smaller passengers under S4.1(d). Under S4.1(d), the minimum seat width for the maximum occupancy configuration is 990 mm (3 x 330 mm). You would like the seat width to be permitted to be slightly less than 990 mm wide. You state that since it is difficult to control the tolerance of cushions, the average seat bench width would have to be greater than 990 mm in order to ensure the cushions produced never measured less than 990 mm. You are worried that if the seat bench width is greater than 990 mm, the bus aisle width would be less than 305 mm, which might not meet some State and local requirements. To avoid the difficulties of manufacturing soft goods, you ask if we apply tolerances to the measurement of seat bench width. You suggest that, Tolerances on soft good of this nature are typically +/- 13 mm. Response We regret to inform you that we cannot issue an interpretation along the line you suggest. NHTSA cannot provide variations from the explicit requirements of the FMVSSs through our interpretation letters. This is because under the National Traffic and Motor Vehicle Safety Act (49 U.S.C. Chapter 301; the Safety Act), NHTSA must establish by order appropriate safety standards. The Administrative Procedure Act (APA) applies to all orders establishing, amending, or revoking a safety standard. The APA generally requires agencies to publish a notice setting forth the proposed change to a safety standard, and allow the public to comment thereon, before the agency can adopt any change to the established safety standard. Our interpretation letters are not subject to the requirements for public notice and comment, because interpretations do not add, delete, or change any requirements established in a safety standard. Instead, our interpretations explain how the requirements established in safety standards or the Safety Act apply to particular vehicles or equipment, or otherwise clarify the meaning of the established requirements. In this case, S4.1s language is clear. Under S4.1(d), a flexible occupancy seat (bench seat) may have a maximum occupancy configuration with Y +1 Type 2 seat belt positions, if the minimum seat bench width for this configuration is Y +1 times 330 mm. Thus, under the standard, the minimum seat bench width for your flexible occupancy seat is 990 mm (3 x 330 mm=990 mm). We cannot interpret this language to include a tolerance of +/- 13 mm for the bench.[1] Your letter suggests a change to the requirements of FMVSS No. 222, not a clarification of those requirements. We cannot change those requirements without initiating rulemaking and giving the public notice of and the opportunity to comment on the change. We also note that interpreting the standard to include a tolerance would confuse the meaning of Table 1 of the standard. Table 1 illustrates the number of seating positions as a function of seat bench width. The table shows that a seat bench with a width of 990-1139 mm would have a minimum of two seating positions (fixed occupancy seats or flexible occupancy seats), and for flexible occupancy seats, a maximum occupancy configuration of three seating positions. The table also shows that a seat bench with a width of 760-989 mm would have a minimum of two seating positions (fixed occupancy seats or flexible occupancy seats), and a maximum occupancy configuration of two seating positions. If we applied a tolerance of +/- 13 mm as you suggest, a bench seat of 760-989 mm nominal width could have a maximum occupancy of two or three seating positions. An interpretation that 990 mm means some lesser value would render the values in Table 1 confusing. For the above reasons, we cannot interpret FMVSS No. 222 to provide the tolerance you seek. Sincerely, O. Kevin Vincent Chief Counsel Ref: Std. No. 222 8/17/2011 [1] We assume you meant +/- 13 mm for the entire 990 mm bench and not per 330 mm seating position, but it is unclear from your letter. |
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ID: 10-007285 S5-1-4 William H Thompson III 108 School Bus Lighting Interp LetterOpen
William H. Thompson III 146 N. 58 Street Philadelphia, PA 19139
Dear Mr. Thompson:
This letter responds to your request dated October 23, 2010 requesting an interpretation of Federal motor vehicle safety standard (FMVSS) No. 108, Lamps, Reflective Devices, and Associated Equipment as it relates to your invention. We believe that your invention, which alters the sequence in which school bus signal lamps will flash, does not meet the requirements of FMVSS No. 108 for the reasons that follow.
In your request, you described the operation of your invention as containing four modes. The first mode is an idle mode where no lamps are flashing. The second mode operates to flash the amber school bus lamps. The third mode flashes one side red and the other side amber then flashes the complement. This mode repeats for approximately three seconds. Finally, the fourth mode flashes only the red lamps when the school bus door is opened and the entire system returns to idle when the bus door is closed. In your telephone conversation with Jesse Chang of my staff on April 11, 2011, you further clarified that the fourth mode would automatically open the school bus door if the school bus is equipped with an automatic door and that the fourth mode would signal the driver to open the door if the school bus is equipped with a manual door. It seems that your inventions alteration of the standard lighting scheme described in FMVSS No. 108 subpart S5.1.4 would likely detract from the standard message intended to be conveyed by school signal bus lamps. Thus, we believe your invention would be prohibited under both S5.1.3 disallowing additional lighting equipment which impairs the operation of required equipment, and the make-inoperative provisions of the Motor Vehicle Safety Act.
By way of background, the National Highway Traffic Safety Administration (NHTSA) is authorized to issue Federal Motor Vehicle Safety Standards that apply to both new motor vehicles and new items of motor vehicle equipment. NHTSA used this authority to promulgate FMVSS No. 108, which is the subject of your inquiry. While NHTSA is responsible for establishing safety standards, this agency does not provide approvals of motor vehicles or new items of motor vehicle equipment. Instead, manufacturers are required to certify that their vehicles and equipment meet the applicable standards and it is unlawful for dealers to sell motor vehicles or equipment not in compliance with these standards.
You are correct to refer to FMVSS No. 108 subpart S5.1.4 as the applicable regulation on school bus signal lamps. That standard requires each school bus to be equipped with either the four-lamp, all red lighting system described in subpart S5.1.4(a), or the eight-lamp, four red/four amber lighting system described in subpart S5.1.4(b). Subpart S5.1.4(b)(ii) further requires (in the eight-lamp setup) that the four amber lamps only be activated manually, that the four amber lamps automatically deactivate when the bus door is opened, and that the four red lamps automatically activate when the bus door is opened.
Additional lighting equipment is not generally prohibited under the FMVSS No. 108. However, there are two restrictions of interest that limit the permissible additions to the required lighting system under FMVSS No. 108 subpart S5.1.4. The first is S5.1.3 which limits the permissible additions that manufacturers and dealers may make before the first sale by stating that no additional lamp, reflective device or other motor vehicle equipment shall be installed that impairs the effectiveness of lighting equipment required by this standard. Through our prior interpretation letter to Steele Enterprises (December 6, 1999), we interpreted S5.1.3 to include under the definition of additional lamp the alteration of required lamps to perform in a manner different from the original design.[1] Further, our agency issued an interpretation letter dated December 11, 1995 and addressed to Ms. Carrie Stabile covering the subject of what constitutes impairment under S5.1.3. In that letter, we clarified the definition of impairment by stating that under S5.1.3, additional equipment cannot detract from the message that the required lamp is intended to impart.[2]
While your invention does not seek to include additional lamps, it is clear from our previous interpretations that altering standard lamps to perform non-standard functions is covered under the prohibition in subpart S5.1.3. Thus, the installation of your invention before the first sale of the vehicle would be governed by subpart S5.1.3. The amber and red lamps are intended to convey distinct messages to the other drivers on the road. The amber lamps indicate to drivers that the school bus is slowing down in preparation of making a stop. Then the red lamps indicate to drivers that the school bus has stopped and is loading or offloading students. As driver familiarity with established lighting standards is essential to preserving the intended message of the required lamps, we believe that your inventions addition of the third-mode lighting stage would impair the effectiveness of the required school bus signal lamps. Drivers familiar with the distinct bus slowing down and bus stopped messages conveyed by the amber and red lamps may not understand an intermediate lighting stage which combines both of these signal lamps. Thus, we believe your invention would be prohibited by FMVSS No. 108 if installed before the first sale.
The second restriction that limits the permissible additions to the required lighting system governs modifications to the vehicle after the first sale. After the first sale, the Motor Vehicle Safety Act of 1966 prohibits any manufacturer, distributor, dealer, or motor vehicle repair business from knowingly mak[ing] inoperative any part of a device or element of design installed on or in a motor vehicle or motor vehicle equipment in compliance with an applicable motor vehicle safety standard.[3] In this situation, we have expressed the interpretation that if new equipment or modifications interfere with the standard message that a lighting system is intended to convey, it constitutes rendering the required lighting inoperative. In our interpretation letter to Consumer Imports, LLC (December 6, 2002), we clarified this position by stating that the addition of a flashing stop lamp to the motorcyclists helmet would cause confusion and render the required stop lamp partially inoperative within the meaning of [the Motor Vehicle Safety Act].[4]
Under this second restriction, manufacturers, distributors, dealers, or motor vehicle repair businesses would also be prohibited by FMVSS No. 108 from modifying any buses currently in compliance with FMVSS to utilize your invention. For the same reason that the different flashing sequence would impair the effectiveness of the required school bus signal lamps, it would also render the lamps partially inoperative within the meaning of the Motor Vehicle Safety Act.
We thank you for your interest in improving safety for school children riding in school buses and the surrounding road users. If you have any further questions, please contact Jesse Chang (202-366-2992) of this office.
Sincerely,
O. Kevin Vincent, Chief Counsel
Ref: FMVSS No. 108 7/29/2011 [1] Available at http://isearch.nhtsa.gov/files/20856.ztv.html. [2] Available at http://isearch.nhtsa.gov/files/1211c.html. [3] 49 U.S.C. 30122(b). [4] Available at http://isearch.nhtsa.gov/files/24604.ztv.html. |
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ID: 10-01396_Bruno_drn.docOpenRichard Keller, Senior Project Leader Dear Mr. Keller: This responds to your letter of January 13, 2010, concerning the application of the make inoperative prohibition with respect to the new head restraint requirements included in Federal Motor Vehicle Safety Standard (FMVSS) No. 202a and vehicles modified to accommodate persons with disabilities. As explained below, until we complete action on our proposal to amend Part 595 to update existing exemptions concerning head restraint requirements and vehicles modified to accommodate persons with disabilities, the National Highway Traffic Safety Administration (NHTSA) will exercise its enforcement discretion and refrain from taking action in situations where the modifications would have been permitted either under the earlier version of the head restraint standard (FMVSS No. 202), or under the earlier version of the standard coupled with the existing exemptions established for that standard. By way of background, on December 14, 2004, the National Highway Traffic Safety Administration (NHTSA) published a final rule upgrading our head restraint standard. See 69 FR 7484. The upgraded standard (which has been subsequently amended) is designated FMVSS No. 202a. The earlier standard was designated FMVSS No. 202. As a result of leadtime and a phase-in, manufacturers have been permitted to certify some vehicles to FMVSS No. 202, rather than FMVSS No. 202a, through August 31, 2010. In response to a petition from your company, on December 18, 2009 (74 FR 67156) NHTSA published a notice of proposed rulemaking (NPRM) to amend Part 595 to update the exemptions concerning head restraint requirements and vehicles modified to accommodate persons with disabilities.[1] You submitted your petition in light of a product you produce called the "Turning Automotive Seat" (TAS). The TAS is designed to swivel in order to allow easier egress/ingress for mobility impaired persons. You indicated that vehicles equipped with TAS meet the requirements of FMVSS No. 202, but not the requirements of FMVSS No. 202a. In order to accommodate people with disabilities and after considering the specific facts related to your request, until this rulemaking is completed, the agency will use its enforcement discretion and refrain from taking action with respect to the make inoperative prohibition and our head restraint standard in the limited instance of situations where the modifications would have been permitted either under the earlier version of the head restraint standard (FMVSS No. 202), or under the earlier version of the standard coupled with the existing exemptions established for that standard. For purposes of the label and documentation requirements of 595.7(b), vehicle modifiers should, in such instances, take the same steps as if FMVSS No. 202 continued to be in effect. If you require any additional information or assistance, please contact Dorothy Nakama of my staff at (202) 366-2992 or at the address given above. Sincerely, O. Kevin Vincent 8/25/2010
[1] In establishing Part 595, NHTSA recognized that it is appropriate to permit some modifications that could cause a vehicle to no longer comply with an FMVSS in order to accommodate people with disabilities. 49 CFR Part 595 Subpart C, Vehicle Modifications to Accommodate People with Disabilities, lists modifications of certain portions of specific FMVSSs that are exempt from the "make inoperative" provision in order to accommodate people with disabilities. |
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ID: 10000Open Mr. Dietmar K. Haenchen Dear Mr. Haenchen: This responds to your request for an interpretation of marking requirements in 49 CFR part 541 Federal Motor Vehicle Theft Prevention Standard for high theft vehicle lines' replacement parts. The answer to both of your questions is VW is still required to mark the replacement parts in question. In your letter, you explained that the Volkswagen Corrado line, a high theft line, was parts marked (pursuant to 49 CFR part 541) in model years 1990 through 1994. For model year 1995, NHTSA granted an exemption from parts marking for the Corrado line, based on the inclusion of an approved antitheft device as standard equipment on all models in the Corrado line. (58 FR 28434, May 13, 1993). However, you informed us in your letter that the Corrado will not be sold in the United States for MY 1995. Your first question asks whether replacement parts for the Corrado line are exempted from the parts marking requirements of part 541. The answer is no. Section 543.7(d) specifies that part 543 exemptions apply only to lines that are the subject of the grant, and are equipped with the antitheft device on which the line's exemption was based. You inform us that the Corrado will not be offered for sale in the U.S. in MY 1995. If the Corrado will not be offered for sale in this country, then no Corrrados sold in the U.S. will be equipped with the approved antitheft device. If no Corrado is so equipped, the part 543 exemption would not apply to the Corrado line. Thus, Volkswagen would be required to continue to mark any Corrado replacement parts, subject to part 541, offered for sale in the U.S. In your letter, you cited an October 12, 1989 NHTSA interpretation letter to Saab-Scania of America to support your position that the Corrado's replacement parts need not continue to be marked. We do not believe that the letter to Saab supports your position. Saab received an exemption from parts marking for the Saab 9000 for the 1989 model year, and asked NHTSA to clarify the scope of the part 543 exemption. On page two of the letter to Saab, NHTSA stated that Saab was free to discontinue marking of original equipment and replacement parts for the Saab 9000 as soon as the part 543 exemption took effect, "provided that Saab actually installed the antitheft device described in its petition..." The letter to Saab establishes that if it does not install the antitheft device on the exempted line, a manufacturer is not free to discontinue marking replacement parts on the line. Your second question was whether replacement parts marking may be terminated at some point after a high theft line subject to parts marking, is no longer produced. The answer is no. This issue was addressed in the final rule establishing 49 CFR part 541 (50 FR 43166, October 25, 1985): Once a line is selected as a high theft line, each covered major replacement part designed for use on that line must be identified as a replacement part. That requirement remains in effect as long as those replacement parts are produced. (50 FR 43178). Thus, as long as replacement parts are produced for a high theft line subject to parts marking, the replacement parts must continue to be marked. I hope that this information is helpful. If you have any further questions, please contact Dorothy Nakama of my staff at (202) 366-2992. Sincerely,
John Womack Acting Chief Counsel ref:541#543 d:7/1/94
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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.