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
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ID: 1983-1.18OpenTYPE: INTERPRETATION-NHTSA DATE: 02/15/83 FROM: AUTHOR UNAVAILABLE; Frank Berndt; NHTSA TO: Mazda (North America) Inc. -- H. Nakaya TITLE: FMVSS INTERPRETATION TEXT:
Mr. H. Nakaya Mazda (North America), Inc. 23777 Greenfield Road, Suite 462 Southfield, Michigan 48075
Dear Mr. Nakaya:
This responds to your letter asking about the definition of occupant compartment air spaces for purposes of determining the application of Standard No. 302, Flammability of Interior Materials. You asked whether the cargo areas of two cars must comply with the standard if these areas always or sometimes open into the occupant compartment.
The term "occupant compartment air space" is defined in the standard as "the space within the occupant compartment that normally contains refreshable air." In previous interpretations regarding the applicability of the standard to a particular area of a vehicle, the question has turned upon whether people can and do ride in the area in question. In letters regarding vans, the agency has taken the position that the area was not typically occupied by passengers. However, the agency came to a different conclusion regarding the space behind the rear seat in station wagons. Since passengers can and do ride in that area, the agency concluded that it was part of the occupant compartment. For this interpretation, see the last page of the enclosed letter.
The Case I car in your letter presents a situation seemingly similar to that of station wagons. The Case I appears to be a liftback cart with a cargo carrying area behind the rear seat. If passengers can ride in the area behind the rear seat, then that would be part of the occupant compartment and would be subject to the standard. As to the Case II car, which appears to be a sedan with internal access to the trunk by means of the folding backs of the rear seats, the agency does not regard the trunk area as part of the occupant compartment. It does not appear from your diagram that people would ride in that area. Sincerely,
Frank Berndt Chief Counsel
Enclosure |
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ID: 1983-1.19OpenTYPE: INTERPRETATION-NHTSA DATE: 02/24/83 FROM: AUTHOR UNAVAILABLE; Frank Berndt; NHTSA TO: Koito Mfg. Co.; Shizuoka Works -- M. Iwase, Manager, Technical Administration Dept. TITLE: FMVSS INTERPRETATION TEXT:
Mr. M. Iwase, Manager Technical Administration Department Koito Mfg. Co., Shizuoka Works 500, Kitawaki Shimizu-Shi, Shizuoka-Ken
Dear Mr. Iwase:
This is in reply to your letter of January 27, 1983, to Mr. Elliott of this agency asking whether your "lighting device with 1 bulb and 2 functions" is permissible under Federal Motor Vehicle Safety Standard No. 108.
The front combination lamp design (parking lamp and side marker lamp functions) is permissible provided that, as you note, all color and photometeric requirements for the respective functions are met. Sincerely,
Frank Berndt Chief Counsel |
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ID: 1983-1.2OpenTYPE: INTERPRETATION-NHTSA DATE: 01/07/83 FROM: AUTHOR UNAVAILABLE; Frank Berndt; NHTSA TO: Stanley Electric Co. Ltd. TITLE: FMVSS INTERPRETATION TEXT: This is in reply to your letter of November 23, 1982, to Mr. Elliott of this agency asking whether you may distinguish between U.S. and Japanese-manufactured lighting equipment subject to Federal Standard No. 108 by marking the lenses "U.S.A. DOT" and "JAPAN DOT", rspectively. As you know, the National Highway Traffic Safety Administration has not adopted the SAE standard on equipment marking, J759c. This means that the only marking subject to Standard No. 108 is that which certifies compliance to all applicable Federal motor vehicle safety standards, the DOT symbol. We believe that the intended proximity of the words "Japan DOT" in your Japanese-manufactured equipment might create the impression that Stanley was certifying compliance to the requirements of the Japanese Ministry of Transport, rather than to those of the U.S. Department of Transportation. Therefore, we suggest that you place the word "Japan" at the end of the line rather than adjacent to the "DOT" symbol. SINCERELY, STANLEY ELECTRIC CO., LTD. November 23, 1982 Att.: Marx Elliott Office of Rulemaking National Highway Traffic Safety Administration Dear Mr. Elliott, We, Stanley Electric Co., Ltd. corporated in Japan (hereafter reffered to as STANLEY-JPN) have estblished Stanley Electric U.S. Co., Inc. corporated in London, Ohio (hereafter reffered to as STANLEY-US) with 100 % investments, and we are in process of preparing to start producing, beginning with the lighting equipments for 1984 model vehicles. In the work we are proceeding, we are faced with a problem, the first case for us, which relates to the identification marking to be indicated on the lighting devices. So, we would like to ask you whether or not our view is right. Honda Motor Co., LTD. (Japan) will manufacture the same type of vehicles both in Japan and in U.S.A (HONDA OF AMERICA). Therefore, their lighting devices of the same design will be manufactured by STANLEY-JPN and by STANLEY-US, and supplied to the Honda plant in each area. Because these lighting devices are of the same design (STANLEY-JPN keeps the original drawings. And only STANLEY-JPN takes proceedings for their modifications.), we intend to indicate the same indentification making to the products made in Japan and made in U. S. A. However, in order to make a country of origin clear, it is our intention to add the marking "JAPAN" or U.S.A." to the identification marking, though it is not explained in Lighting Identification Code-SAE J759c. The following is an example: For products made in Japan : "STANLEY 043-6371 SAE AIST 80 JAPAN DOT" For products made in U.S.A.: "STANLEY 043-6371 SAE AIST 80 U.S.A. DOT" Please let us know whether or not the above view has no problem. Thanking you in advance, H. Miyazawa Director, Automotive Lighting Engineering Dept. |
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ID: 1983-1.20OpenTYPE: INTERPRETATION-NHTSA DATE: 02/24/83 FROM: AUTHOR UNAVAILABLE; Frank Berndt; NHTSA TO: Garvin-Fram Inc. -- Jack Garvin TITLE: FMVSS INTERPRETATION TEXT:
Mr. Jack Garvin Vice President-Operations Garvin-Fram, Inc. 817 Albion Avenue Schaumburg, Illinois 60193
Dear Mr. Garvin:
This responds to your recent letter to Mr. Kratzke of my staff requesting information concerning any regulations applicable to the salvage and sale of farm implement tires exposed to a warehouse tire. This agency has no such regulations, and I am not aware of any Federal regulations.
The National Traffic and Motor Vehicle Safety Act, as amended 1974 (15 U.S.C. 1381 et seq.), gives this agency authority to regulate motor vehicles and motor vehicle equipment. Tires for use on motor vehicles are subject to regulation as motor vehicle equipment. Section 102(3) of the Safety Act (15 U.S.C 1391(3)) defines a motor vehicle as "any vehicle driven or drawn by mechanical power manufactured primarily for use on the public streets, roads, and highways.." Farm implements have been determined not to be motor vehicles because they are not manufactured primarily for use on public roads. Therefore, tires for use on farm implements are not considered motor vehicles equipment, and are not regulated by this agency. The inventory sheet attached to your letter shows that these tires are of a size and strength that were designed for use on farm implements. Accordingly, you may conduct the salvage and sale of these farm implement tires as you wish without violating any of this agency's regulations.
In your telephone conversation with Mr. Kratzke, you mentioned that some tires for use on passenger cars were also involved in the fire and asked about any agency requirements for subsequent sale of these tires. With respect to those tires, the manufacturer that has certified the tires as complying with our safety standards ( by molding the letters "DOT" on the sidewall) must make a determination of whether the certification is still valid. If the manufacturer determines that the certification is still valid, the tires may be sold. If, on the other hand, the certification is not still valid, the manufacturer must remove its DOT symbol from the sidewall of the tires, and those tires coud not be sold. The means by which the manufacturer determines whether or not its certification is still valid is left completely to the discretion of the individual manufacturer. I have enclosed a 1981 interpretation explaining this more fully. I appreciate your concern for tire safety and for complying with our safety regulations.
Sincerely,
Frank Berndt Chief Counsel Enclosure
January 18, 1983
National Highway Traffic Safety Administration Office of the Chief Council 400 7th St. S.W., Room 5219 Washington, D.C. Attn: Mr. Steve Kratzke
RE: Farm Implement Tires
Dear Mr. Kratzke:
Enclosed is an inventory of the farm implement tires I referred to in our phone conversation on January 18, 1983.
Basically, what we would like to know is are there any Federal regulations, particularly through the NHTSA, regarding the salvage and sale of distressed farm implement tires. In this case, the tires were involved in a fire in Zealand, Michigan, however these particular tires were approximately 50 to 75 feet away from the fire area. Additionally, there were approximately 1000 passenger tires between the fire area and implement tires, acting as an insulator from the heat.
I will await your reply in writing before disposing of the tires. Additionally, after receiving your letter, I will again contact the manufacturer to see if they would like to run tests on these tires for quality control purposes, which they have to date refused to do. Very truly yours,
Garvin-Fram, Inc. Jack Garvin Vice President-Operations |
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ID: 1983-1.21OpenTYPE: INTERPRETATION-NHTSA DATE: 03/04/83 FROM: AUTHOR UNAVAILABLE; Frank Berndt; NHTSA TO: E- Z- Go Textron TITLE: FMVSR INTERPRETATION TEXT: This is in reply to your letter of February 4, 1983, telling of your wish to build a four-wheeled light weight traffic enforcement vehicle similar to a three-wheeled machine manufactured by Cushman. You have asked whether you have to meet passenger car safety standards "or can we obtain a waiver for this vehicle only to comply with motorcycle safety standards?" You have enclosed a brochure on the vehicle you propose to modify, Textron's GX-800. I am sorry to say that only vehicles with three wheels or less are defined as "motorcycles" for purposes of compliance with the Federal motor vehicle safety standards. Years ago, the agency totally excluded from the application of those standards four-wheeled vehicles with a curb weitht of 1000 pounds or less such as the GX-800. However, that exclusion was terminated in the early 1970's. A manufacturer of 10,000 vehicles or less per year may petition for a temporary exemption from any safety standard where immediate compliance would cause substantial economic hardship. However, he must make a good faith effort to bring the vehicle into compliance during the exemption period. Although this would appear impossible with your vehicle because of its physical limitations, the agency has in the past exempted replicas of 1900-style vehicles where full compliance was manifestly not feasible. I enclose a copy of Title 49 Code of Federal Regulations Part 555 which sets out the exemption procedures. If your planned vehicle would have a cargo box, similar to the one on the Cushman vehicle, your vehicle could be considered a "truck" for compliance purposes. As a car or truck, your vehicle would also have to comply with Federal fuel economy and emissions standards. Exemptions from fuel economy standards may be sought under 49 CFR Part 525. As to the emissions standards, you should write the Environmental Protection Agency. ENC. February 4, 1983 Ed Glancy Office of Chief Council National Highway Traffic Safety Adm. Dear Mr. Glancy: I have proposed that E-Z-Go Division of Textron Inc. build and market a traffic enforcement vehicle similar to the Cushman police vehicle (see enclosure). I also propose that this vehicle should be a four wheeled vehicle for greater stability rather than a three wheeled vehicle. This vehicle would be a modification of one of our current vehicles with the addition of a cab, rear bed enclosure, four wheel brakes, hand parking brake, larger diameter "DOT" tire, complete "DOT" lighting package, windshield wipers, seat belts, and a top speed of 35 M.P.H. (see our brochure). My question is: Do we have to comply with automobile safety standards or can we obtain a waiver for this vehicle only to comply with motorcycle safety standards? This vehicle would be sold primarily to city governments. Thank you very much for your attention to this proposal. John C. Dobbs Project Engineer EZ-GO TEXTRON Police Vehicle GASOLINE/ON-ROAD * To the police officer or security patrolman, productivity takes on a more significant meaning. To provide security, the patrol vehicle must not only save steps and work, but it must be reliable enough to assure that the officer is in the right place at the right time. It must be responsive, maneuverable, and easy to get in and out of. That's why thousands of hardworking Cushman Police Vehicles are currently in use across the nation. Police Vehicles are a natural for sufficiently mobilizing the patrolman, marking tires, transporting emergency and or just providing weatherproof comfort for traffic control officers. The tight 17-foot (5.2m) clearance circle and narrow 48" (1219mm) width allow the Police Vehicle-mounted officer to park and go places conventional vehicles could never go. It easily maneuvers in cramped quarters or congested traffic. And the 18-hp air-cooled OMC engine is specially designed to handle a full day of demanding stop-and-go driving on regular gas. There's a big 16-cubic-foot (0.45m(3)) cargo box for carrying traffic cones, warning signs or other law enforcement or first aid equipment. The power-assisted, lockable steel lid provides easy access to all enclosed contents. And there is additional open storage space between the box and the cab. Even when the weather is bad, the Police Vehicle is ready. It has a big 15" (381 mm) wiper, an optional heater/defroster and optional cloth or lockable steel doors to provide operator visibility and comfort, even in cold climates. The Police Vehicle comes in Police blue and white. For municipal, military or private security patrol, the Cushman Police Vehicle is the proven productivity booster. It makes the most of every manhour on any force. (Graphics omitted) SPECIFICATIONS/MODEL 434 POLICE VEHICLE STANDARD EQUIPMENT/DIMENSIONS/ACCESSORIES/MODIFICATIONS (Illegible Text) ** NOTE: This vehicle complies with U.S. Dept. of Transportation Motor Vehicle Safety Standards applicable to motorcycles. Operators should wear helmets which meet Motor Vehicle Safety Standard 218 and are marked with symbol "DOT" Certain states laws require wearing of helmets and special license for motorcycle operators. Drawbar Pull (Level Ground Maximum Speed 39 MPH) 4.2:1 Axle Ratio Speed Drawbar Speed Drawbar Engine MPH Lbs. km/h kg RPM 1st 1st 1st 1st 2000 39 430 143 195 2400 107 490 172 222 2800 124 425 200 193 3200 142 400 229 181 3600 160 360 257 163 (Maximum Speed 29 MPH) 6.5:1 Axle Ratio Speed Drawbar Speed Drawbar Engine MPH Lbs. km/h kg RPM 1st 1st 1st 1st 2000 54 500 103 272 2400 77 615 124 279 2800 89 595 143 270 3200 102 560 164 254 3600 115 500 185 227 Gradeability ** Gross Gross 4.2:1Axle 6.5 to 1 Axle Weight Weight Gradeability % Gradeability % Lbs. kg 1st 2nd 3rd 1st 2nd 3rd 1200 544 39 23 14 50 33 20 1300 590 36 21 13 50 30 18 1400 635 33 19 12 49 28 17 1500 680 31 18 11 46 26 16 1600 726 29 17 10 42 24 15 1700 771 27 16 10 40 23 14 1800 616 25 15 9 37 21 13 1900 562 24 14 9 35 20 12 2000 907 23 13 8 33 19 11 2100 953 22 12 8 31 18 10 2200 998 20 11 7 29 17 9 * Gross vehicle weight equals weight of the vehicle, plus operator, plus payload. ** Calculated equivalent based on available power efficiency and axle ratio.
(Graphics omitted) THE E-Z-GO GX-800. THE LASTING IMPRESSION IT LEAVES WON'T BE ON YOUR TURF. E-Z-GO introduces a new concept in landscape maintenance. The light-turf vehicle that's perfect when you need a utility car, and a truck is too much. It's as strong as an ox, but gentle as a lamb. The E-Z-GO GX-800 is the perfect utility vehicle for landscaping. It's light and gentle on your valuable grounds. Yet it's strong enough to carry loads, climb hills, and ride in bad weather. The body is constructed of Galvanneal, steel plating that's treated with rust preventive zinc Oxide. So they drive the fairway longer than any other utility vehicle. The chassis is welded high-yield tubular steel. It features a protective vinyl bumper strip, and a four-way diamond pattern treadplate design on the bed makes the GX-800 stronger all around. (Loadbed is not Galvannealed). Put all your garden tools to bed. The GX-800 has a 44" x 40" x 8" loadbed in the back that's deep enough to carry all your turf tools. It carries up to 800 lbs., and heavy duty springs and shocks make the ride smooth and comfortable, no matter how tough the rough. The loadbed tilts for complete access to drive package. And the sides and tailgate are easily removed. This beast is a beauty on your budget. You can afford three GX-800 vehicles for the price of one heavy-duty pickup truck. It's light enough so that it's economical on fuel and requires only standard maintenance. And it'll last years and years because it's engineered by E-Z-GO. The GX-800 is suited for anything. From the electronic ignition, to the dual rear brake, to the hypoid ring and pinion differential, the E-Z-GO GX-800 light turf vehicle is strong enough for any landscaping job. Yet it is light enough so it won't be a landscraper. It's perfect for golf courses, cemeteries, public parks, office grounds-keeping, or large, private residential landscaping. The GX-800 is especially a utility runabout. It's a tremendous timesaver for the superintendant who has to get around the grounds to oversee his crew. It can take the shortest route to its destination. For more information, call your nearest E-Z-GO representative. E-Z-GO GX-800 LIGHT TURF VEHICLE. CHASSIS/POWERTRAIN SPECIFICATIONS. Engine: 2 cycle, 244CC single cylinder air cooled, oil injected with electronic ignition. Drive Train/Transmission: Variable speed, fully automatic, forward and reverse. Torque Converter: Automatic, variable speed, dry type. Differential: Hypoid ring and pinion, 12.25 to 1 ratio. Brakes: Mechanical, drum type, dual rear wheel brakes with over 47 square inches swept area. Foot operated parking brake with automatic release. Electrical System: External starter/generator, 12 volt negative ground system, with forward and reverse starting. Speed: Governed at 12 MPH, adjustable. Air Cleaner: Dry, replaceable cartridge. Carburetor: Fixed jet, float bowl with separate fuel pump. Suspension: Front: Heavy duty leaf springs with shocks. Rear: Heavy duty coil springs with heavy duty shocks. Steering: Rack and pinion. Fuel System: 6 gallon capacity. DIMENSIONAL SPECIFICATIONS. Weight: 810 lbs, dry. Fuel capacity 42 lbs. Length: 106 inches. Width: 48 inches (at rear wheels). Height: 47 inches (at steering wheel). Floor Height: 11 inches. Load Bed Height: 24 inches. Ground Clearance: 5 inches (at differential). Seat Height: 29 inches. Wheel Base: 71 inches. Front Tread Centers: 32-1/2 inches. Rear Tread Centers: 39 inches. Turning Clearance Diameter: 23 feet Tires: 18 X 8:50 X 8 Softrac. Load Capacity: 800 lbs. (including operator and passenger). Load Bed Size: 44 inches wide, 40 inches long, 8 inches deep. Capacity: 8 cubic feet. FEATURES AND OPTIONS. Features: 1. Load Bed: Tilts for complete access to drive package. Removeable sides and tailgate. 2. Chassis: Welded high yield tubular steel. 3. Body: Galvanneal body and heavy duty four-way diamond pattern treadplate truck bed. 4. Body Protection: Wrap-around vinyl bumper/rub strip, chrome front bumper, and flexible rear fenders. 5. Battery: Delco Freedom II, maintenance free. 6. Safety: Key switch and electric horn. OPTIONS: Lighting Package Chrome Hubcaps Hour Meter Turn Signals Specifications subject to change without notice. |
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ID: 1983-1.22OpenTYPE: INTERPRETATION-NHTSA DATE: MARCH 4, 1983 FROM: HOUTAN MOSTAGHIM -- VICE PRESIDENT, PAN UNITED TO: CHIEF COUNSEL -- NHTSA TITLE: DOG CLIP. ATTACHMT: MEMO DATED 3-21-83, FROM FRANK BERNDT, FROM HOUTAN MOSTAGHIM, NOA-30 TEXT: The purpose of this letter is to request official legal interpretation on a piece of safety device which, this company is currently intending to import and distribute in the territories of the United States. This device refers to a so called "complimentory buckle component" of a seat belt, which is engaged and secured in a seat buckle component. This device is designed to be attached and secured to the collar or homes of a pet in any vehicle with seat belt buckle component, in order to protect the driver from the pet's sudden and gross moves inside the vehicle. For further clarification and explanation of this device, I am enclosing a copy of respective patent document for your kind review. This document is accompanied with a picture of the device in actual size, plus some other informative material and pictures. What we need to find out are: 1-) Does this device apply to any of the National Traffic and Motor Vehicle Safety regulations? 2-) Do we need to obtain any kind of import permit from your organization to proceed with the importation of the device? 3-) Based on the regulations, does the device require any testing and licensing prior to actual commencement of importation? 4-) What types product liabilities should our company entertain, as the sole importer and distributor of this device? 5-) Can these liabilities be covered through appropriate insurance coverages. And if so, please kindly, supply us with a list of insurance companies that are currently involved in such underwritings. After the review of the material, you would realize that, this device is primarily designed to increase safety for the driver and other passengers, rather than the pet's. Therefore, we believe the prompt promotion and marketing of this device in the U.S., would directly contribute to relative improvement in highway and traffic safety concerns of your respected organization. We would strongly entertain your suggestions, comments and advise on this matter. I am looking forward to your kind response, mean while I remain. ENCLS: AS STATED IN TEXT |
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ID: 1983-1.23OpenTYPE: INTERPRETATION-NHTSA DATE: 03/11/83 FROM: AUTHOR UNAVAILABLE; Frank Berndt; NHTSA TO: Mr. Anton Ostermeier TITLE: FMVSR INTERPRETATION TEXT: Thank you for your letter of February 4, 1983, supplying the further information we requested on January 28. The 1955 Mercedes replica which you contemplate building is a hybrid of new and old parts. The body is of your construction and consists of new parts. You fabricate the chassis using new tubing; however, its front cross member may be either a new replacement Mustang part (1974-1978 models) or one actually taken from a vehicle in use. Similarly, the front suspension, differential and rear suspension, and transmissions may be new replacement parts or taken from vehicles in use. You will employ used rear wheel cylinders in the braking system and used engines (either a 1964 Chrysler Slant 6 or a 1969 Chevrolet V-8). Any equipment that has previously been used will be rebuilt to the manufacturer's specifications, and new parts will be incorporated where necessary. As a general rule, the agency has no requirements for "used" vehicles. Whether a vehicle is treated as new or used depends on the origin of its parts. For example, we regard an assemblage consisting of a new body on the chassis of a vehicle previously registered for use on the public roads as a "used" motor vehicle and therefore not subject to the Federal motor vehicle standards. On the other hand, the agency will consider a truck newly manufactured when an old cab is replaced with a new one unless at least the engine, transmission, and drive axle of the assembled vehicle are not new and at least two of these components were taken from the same vehicle. The vehicle you propose to manufacture is somewhat different from either of these examples, but we have concluded that it is a "new" motor vehicle and must comply with Federal motor vehicle safety standards applicable to new passenger cars. Not only do previously unused parts appear to predominate in your plans, but, in addition, the old parts that are used will be rebuilt with new parts where necessary, to the manufacturer's original specifications. With the exception of the 1964 engine, the rebuilt components were originally used in vehicles manufactured to meet the Federal motor vehicle safety standards and there appears no reason why your product may not also be manufactured to comply, even though it is a replica of a 1955 car. Use of the 1964 engine could raise problems of compliance with Safety Standard No. 124, Accelerator Control Systems, and with Safety Standard No. 301, Fuel System Integrity. However, in that event, we believe that you (as a producer of less than 10,000 vehicles a year) would be eligible to apply for a temporary exemption from those standards, or any other standard where immediate compliance would cause you substantial economic hardship. I enclose an information sheet which tells you where you may obtain a copy of our regulations, including the standards and temporary exemption petition procedures. If you have further questions, we would be happy to assist you. ENC. U.S. Department of Transportation National Highway Traffic Safety Administration Frank Berndt Chief Counsel February 4, 1983 Dear Mr. Berndt, General Description of the products used in the construction of the 300SL Mercedes Replica by Gullwing Car, Inc. 19240 South Vermont Avenue, Gardena, Calif. 90248. (213) 324-9847 as follows. Frame; The frame is of square steel tubing construction, using new tubing. Sizes are as follows; 1" x 1" x .065 1" x 1" x .090 .75 x .75 x .065 .75 x .75 x .125 3" x 2.5" x .375 3/16" flat stock The front cross member is 1973 to 1979 Mustang 11. This assembly is purchased both new old stock and used. It is welded into our frame assembly using original weld points, angles, forward aft locations and ground clearances. Even the axel weight has been maintained as prescribed for the 1973 to 1979 Mustang 11 manufacturing specifications. This unit is assembled and jig built as shown by previously supplied pictures the Dept. of the Chief Counsel, this insures the product uniformity. Bumpers both front and rear; Bumpers are constructed of stamped nickel chrome plated steel as orginally manufactured for the 1953 thru 1957 Gullwing 300SL. It is bolted to the frame through spring steel brackets as was the original production car. Front Suspension; The front suspension used is the 1973 to 1979 Mustang 11 and is used in its entirety. This suspension is purchased both new old stock and used. When purchased used, units are completely disassembled. Basic units are inspected to assure conformity to the original manufacturers specifications, then reassembled using new parts. i.e. all new bushings, all new bearings, bearing races and seals. The stearing gear is stock 1973 to 1979 Mustang 11 rack and pinion and is installed as prescribed for the 1973 to 1979 Mustang 11 by the manufacturer. Front end alignment as to Caster, Camber, Toe-in, suspension travel and clearances are maintained as originally designed. Differential and Rear Suspension; The products used is the 1979 to 1983 Ford Fairmont rear suspension and differential, it is used in its entirety unaltered. It is installed in our frame to the exact same specifications as it would be installed in the 1979 to 1983 Ford Fairmont frame, i.e. clearance, mounting points, angles and travel. These specifications and locations are maintained by the jig building of our frame. These units are purchased both new old stock and used. When purchased used they are disassembled, inspected and rebuilt to original manufacturer specifications using new bearings, bearing races, seals, gaskets and gears where ever necessary. Brakes; The rear brakes are drum type 10" x 1 and 3/4" hydraulicly operated. They are the original brakes for the 1978 to 1983 Ford Fairmont. They are installed unaltered and in there entirety. New brake lining and wheel cylinders are used and assembled to the original manufacturers specifications. The front brakes are of Disc type and are used in there entirety as prescribed for the 1972 to 1979 Mustang 11. The lining is new and the wheel cylinders are rebuilt with new parts to original manufacturers specifications. Brake Lines; Flexible brake lines both front and rear are original equipment type. Master Cylinder; Master cylinder is the duel type vacuum boosted as used in 1979 to 1983 Ford Fairmont. Hydraulics to wheels is supplied through compatable differential valve and andoized double flared steel tubing and is of the sizes and routing using the practices of the manufacturers. note: Vehicle weight is between 2,050 lbs and 2,500 lbs. The brakes system employed is capable of handling a 3,200 to 3,800 lb vehicle and is more than adequate. Engines; Two engines are available in our Gullwing Replica. They are 1964 225 cubic inch slant 6 Chrysler engine and the 1969 350 cubic inch V-8 Chevrolet engine. The engines are purchased used and rebuilt to the original manufactures specifications, using new parts where ever necessary. Transmission; The transmission selections are as follows, for the Chrysler slant 6 the Borge Warner 4 speed standard shift transmission and the aluminum automatic 3 speed torque flight transmission. For the Chevrolet V-8 engine the 4 speed Munci transmission and 350 hydromatic transmission are used. These units are purchased both new old stock and used. When purchased used they are completely disassembled, inspected and reassembled to manufacturers specifications, using new parts when ever necessary. Body; Body is constructed of four layers, first layer of epoxy, second layer of 2oz fiberglass matting and epoxy, third layer 4oz fiberglass matting and epoxy, fourth and inside final layer of 2oz fiberglass cloth and epoxy. Fiberglass sequence is layed up in a female mold and Kiln dried for optimum cure and strength. Through temperature control. note: enclosed in the windshield frame is a 3/4" x 3/4" x .090 square tubing. Center section of roof contains steel support and hinge box, a rear window support also of 3/4" x 3/4" x .090 square tubing. The center hinge box assembly is bolted to front and rear window support tubing. When completely assembled driver and passenger are protected 360 degrees with steel bolted to frame assembly. On both left and right sides by no less than 8 inches of bridged frame work, not to mention inner and outer epoxied fiberglass panels and padded leather upholstery. Lights; Headlights are seal beam type, rear tail light lens are the reflector type required. Fully automatic signal and hasard lights are incorperated. Glass; All glass is new. Front windshield is two layered safety glass as prescribed by D.O.T.S. Door glass left and right is of the tempered type required by D.O.T.S. Left and right 1/4 windows, is also of tempered type required by D.O.T.S. As is the back window glass. Rims and Tires; Rims and tires are both 14" and 15", customers obtion. They will be supplied new old stock and new only. The above is a summary of my replica's construction. I hope this supplies you with the information you requested to assist me with my list of requirements. Please contact me for any further information you may require. |
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ID: 1983-1.24OpenTYPE: INTERPRETATION-NHTSA DATE: 03/11/83 FROM: AUTHOR UNAVAILABLE; Frank Berndt; NHTSA TO: J.V.R. Enterprises -- Robert A. Wirffel TITLE: FMVSS INTERPRETATION TEXT:
Mr. Robert A. Wirffel J.V.R. Enterprises 8511 No. Canterbury Avenue Sun Valley, California 91352 Dear Mr. Wirffel: This in reply to your letter of February 6, 1983, to Mr. Vinson of my staff regarding the legality under Federal Motor Vehicle Safety Standard No. 108 of your "Safe-T-Signal" directional indicator. The signal, and 8-inch amber arrow, is located under the right side of a semi-trailer, approximately at mid point, and is intended to warn vehicles in the adjacent right traffic lane that the semi-trailer makes wide right turns. The system supplements the trailer's existing turn signal, as we understand it. There is nothing in Standard No. 109 that prohibits use of your system as it does not appear to impair the effectiveness of the lighting equipment, such as turn signals, required by Standard No. 108 as original equipment. However, you must insure that it is permitted in States in which the device is likely to be used. We note the statement in your letter that the amber arrow is "D.O.T. approved" and in your descriptive sheet as well, plus the statement that is "conforms to applicable federal motor vehicle standards (C.H.P approved) ." This is legally incorrect, as the U.S. Department of Transportation does not "approve" lighting equipment , nor does Standard No. 108 specify requirements with which a supplementary turn signal system must conform. If you wish to assure prospective purchasers that Federal requirements as "Permissible under Federal Motor Vehicle Safety Standard NO., 108." Sincerely,
Frank Berndt Chief Counsel |
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ID: 1983-1.25OpenTYPE: INTERPRETATION-NHTSA DATE: 03/11/83 FROM: AUTHOR UNAVAILABLE; Frank Berndt; NHTSA TO: Ms. Susan Reilly -- Reilly Manufacturing TITLE: FMVSS INTERPRETATION TEXT:
Ms. Susan Reilly Reilly Manufacturing P.O. Box 51 Mt. Vernon, Iowa 52314
Dear Ms. Reilly:
This responds to your letter asking whether a motorcycle helmet fastener your company produces, called "Alpha Clip," complies with Federal requirements.
By way of background information, this agency does not give approvals of vehicles or equipment. The National Traffic and Motor Vehicle Safety Act places the responsibility on the manufacturer to ensure that its vehicles or equipment comply with applicable standards.
Safety Standard No. 218, Motorcycle Helmets, includes various minimum performance requirements for motorcycle helmets. The only requirement directly relevant to your fastener is the retention test, which is set forth at section S5.3. The letter you enclosed from the University of Southern California suggests that the clip passes that test.
I would note that Standard No. 218 only applies to new motorcycle helmets and not to replacement equipment for motorcycle helmets. Thus, unless your clip was sold as part of a new motorcycle helmet, the requirements of Standard No. 218 would not be directly applicable. (Please note, however, that the agency discourages helmet users from modifying their helmets. Section S5.6.1 of the standard requires that the following instruction be placed on helmets: "Make no modifications..")
I would also note that should a safety-related defect be discovered in your device, whether by the agency or by yourself, you as the manufacturer would be required under sections 151 et seq. of the Act to notify owners, purchasers, and dealers and provide a remedy for the defect. These provisions apply regardless of whether the device is covered by a safety standard. A copy of the Act is enclosed. Sincerely
Original signed by Frank Berndt, Chief Counsel
Reilly Manufacturing P.O. Box 51 Mt. Vernon, IA 52314 (319) 895-8479
Mr. Frank Berndt 400 Seventh St. SW Washington, DC 20590
Dear Mr. Berndt:
At the advice of Mr. Gilky of the NHTSA Safety Compliance Office I am writing for your judgement as to the compliance of our Motorcycle Helmet Fastener to Federal requirements. We believe the "Alpha Clip" meets all requirements and is a safe and reliable product. I have included the clip, packaged for mail order, for your review. As of now, we market only the clip, not O-rings or helmets, and the consumer is responsible for installation.
I have also included a copy of a (unreadable) of U.S.C.. He then tested our fastener as a public service. Since receiving his letter we've added a plastic vinyl cap fitted to the hook, creating an interference fit.
Other recent information is as follows: 1 The hook is designed to fold in within itself when tension is released (we are in the process of moving the design patented) 2. Made of nickel plated (unreadable) steelwire of .142 +.005 - .000 inches dia. Length .900 I .020 in., width l.l90 I .020 in., width .702 I .010 Weight .
3. Has a deformation point of 600 pounds tensile
4. Does not protrude from the helmet
5. Installs directly to helmet strap - nothing is removed from the helmet.
I have also sent a clip and information to Mr. B. Roven, Coordinator of Motorcycle Safety for the Iowa DOT, if you wish to contact him for comment. Please let us know your judgement on our clips compliance as soon as possible.
Thank you for your time and cooperation.
Sincerely, Susan Reilly June 3, 1983 Mr. Steve Reilly RR 2 Mount Vernon, IA 52314 Dear Steve, Thank you for sending your new retention clip to us for evaluation. Professor Hurt asked me to run some tests on it and give you some comments. The beauty of your clip design is that it could be retrofitted to most helmets providing a much more convenient method of fastening than conventional D-rings. The first test I did was to use your clip on a complete helmet for the actual DOT retention test. Enclosed is that portion of the standard. I used an Electro E3 which has an extremely strong retention system. This choice of helmets made your part the weak link. With the Reilly clip in place, the test result was 0.54 inch elongation @ 300 lbs., about normal for an Electro. The clip showed no deformation at this load. Taking the entire system up in loading, the strap began to slip at 640 lbs. when the unwelded ends of the clip deformed. This load at failure is typical for many helmets that pass the DOT requirements. The problem that your design has is answered by many industrial safety codes that require a safety snap latch on all hooks. This spring-loaded device swings inward when engaging the hook and then returns to block the throat of the hook creating a closed loop. Bell Tourlite bicycle helmets use a somewhat similar hook with a safety latch made by Fastex. A less satisfactory solution would be to close up the radius of the hook bend to create an interference fit onto the D-ring. Please feel free to send out any future revisions to us for evaluation. As with the better mousetrap, the world is ready for a better helmet retention strap fastener.
Sincerely, Original signed by David Thom, Laboratory Technician |
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ID: 1983-1.26OpenTYPE: INTERPRETATION-NHTSA DATE: 03/18/83 EST FROM: FRANK BERNDT -- NHTSA CHIEF COUNSEL TO: LINDA ANDERSON TITLE: NONE ATTACHMT: NOVEMBER 21, 1982 LETTER FROM ANDERSON TO OESCH IS ATTACHED TEXT: This responds to your November 21, 1982, letter and subsequent January 12, 1983, letter submitting supplementary information concerning a play tray that you want to produce. You ask in general whether that tray would be required to comply with any of the requirements applicable to child seating systems in Standard No. 213, Child Restraint Systems. In a conversation that you had with Mr. Roger Tilton of my staff, you indicated that you no longer need information relating to the first two questions raised in your November letter. Accordingly, we will focus on the other issues that you raised. The play tray that you describe would be attached to a child seat by the use of velcro fasteners secured around the restraint belts of the child seat. You state that the restraints would have to be in their proper position before the tray, which itself is not designed as a restraint, could be attached. You ask whether a manufacturer of a child seat could sell such a tray as a part of its child seating system or whether it could be marketed separately. If the play tray were marketed as part of a child seat, it would be required to comply with all of the requirements of the standard applicable to child seats. Section S5.2.2.2 prohibits any fixed or moveable surfaces in front of the child except for surfaces that adequately restrain the test dummy in the 20 mph test. If the tray attached to the child restraint so that it is the only surface in front of the child, the child restraint would have to be tested with just the tray as specified in Section S5.2.2.2. It does not appear likely that the tray would comply with those requirements. If your tray is manufactured and marketed separately to consumers who own child restraint systems, it would not be required to comply with the requirements of Standard No. 213. That standard applies to new child seating systems that are designed to restrain, seat or position children. Your tray sold by itself would not constitute a child seating system designed to restrain, seat or position children and thus would not be subject to this standard. You should be aware, however, that your tray would be considered motor vehicle equipment. As such it would be subject to our defect authority. If it were found that a substantial number of your trays were being improperly used as the sole restraint device on a child seat by connecting the tray without using the proper seat belt restraint system, the agency might determine that this constitutes a safety-related defect. Also, this could be the source of product liability suits in the event that your tray was involved in an accident where a child is injured while improperly restrained. From our analysis of your diagrams, this type of misuse appears to be likely. In a final question, you asked whether the regulations ever change. The answer to that question is yes. The agency frequently amends its own regulations acting upon new information or changed safety needs. Further, the agency receives petitions from members of the public to amend its regulations. The process for submitting those petitions is outlined in Part 552 of our regulations (copy enclosed). Enclosure |
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.