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NHTSA Interpretation File Search

Overview

NHTSA's Chief Counsel interprets the statutes that the agency administers and the standards and regulations that it issues. Members of the public may submit requests for interpretation, and the Chief Counsel will respond with a letter of interpretation. These interpretation letters look at the particular facts presented in the question and explain the agency’s opinion on how the law applies given those facts. These letters of interpretation are guidance documents. They do not have the force and effect of law and are not meant to bind the public in any way. They are intended only to provide information to the public regarding existing requirements under the law or agency policies. 

Understanding NHTSA’s Online Interpretation Files

NHTSA makes its letters of interpretation available to the public on this webpage. 

An interpretation letter represents the opinion of the Chief Counsel based on the facts of individual cases at the time the letter was written. While these letters may be helpful in determining how the agency might answer a question that another person has if that question is similar to a previously considered question, do not assume that a prior interpretation will necessarily apply to your situation.

  • Your facts may be sufficiently different from those presented in prior interpretations, such that the agency's answer to you might be different from the answer in the prior interpretation letter;
  • Your situation may be completely new to the agency and not addressed in an existing interpretation letter;
  • The agency's safety standards or regulations may have changed since the prior interpretation letter was written so that the agency's prior interpretation no longer applies; or
  • Some combination of the above, or other, factors.

Searching NHTSA’s Online Interpretation Files

Before beginning a search, it’s important to understand how this online search works. Below we provide some examples of searches you can run. In some cases, the search results may include words similar to what you searched because it utilizes a fuzzy search algorithm.

Single word search

 Example: car
 Result: Any document containing that word.

Multiple word search

 Example: car seat requirements
 Result: Any document containing any of these words.

Connector word search

 Example: car AND seat AND requirements
 Result: Any document containing all of these words.

 Note: Search operators such as AND or OR must be in all capital letters.

Phrase in double quotes

 Example: "headlamp function"
 Result: Any document with that phrase.

Conjunctive search

Example: functionally AND minima
Result: Any document with both of those words.

Wildcard

Example: headl*
Result: Any document with a word beginning with those letters (e.g., headlamp, headlight, headlamps).

Example: no*compl*
Result: Any document beginning with the letters “no” followed by the letters “compl” (e.g., noncompliance, non-complying).

Not

Example: headlamp NOT crash
Result: Any document containing the word “headlamp” and not the word “crash.”

Complex searches

You can combine search operators to write more targeted searches.

Note: The database does not currently support phrase searches with wildcards (e.g., “make* inoperative”). 

Example: Headl* AND (supplement* OR auxiliary OR impair*)
Result: Any document containing words that are variants of “headlamp” (headlamp, headlights, etc.) and also containing a variant of “supplement” (supplement, supplemental, etc.) or “impair” (impair, impairment, etc.) or the word “auxiliary.”

Search Tool

NHTSA's Interpretation Files Search



Displaying 6751 - 6760 of 16490
Interpretations Date

ID: nht72-3.44

Open

DATE: 05/12/72

FROM: AUTHOR UNAVAILABLE; Richard B. Dyson; NHTSA

TO: Kangol Magnet Ltd.

TITLE: FMVSS INTERPRETATION

TEXT: This is in reply to your telegram of April 4, 1972, in which you asked whether it is permissible for the engine starting system of a vehicle conforming to the interlock requirements of Motor Vehicle Standard No. 208 to be operable when there are no occupants in the front seats by reaching through an open door or window to turn the ignition key.

Our reply is that the standard does not prohibit a system that operates in this way. Such a system is therefore permissible.

ID: nht92-8.33

Open

DATE: March 5, 1992

FROM: Paul Jackson Rice -- Chief Counsel, NHTSA

TO: Marc C. Gravino, Esq. -- Williams & McCarthy

TITLE: None

ATTACHMT: Attached to letter dated 2/7/92 from Marc C. Gravino to Paul Jackson Rice (OCC 6960)

TEXT:

This responds to your letter of February 7, 1992, asking for an interpretation of Federal Motor Vehicle Safety Standard No. 108. Specifically, you ask whether the standard contains any requirement that the parking lamps, taillamps, and side marker lamps operate independently of the ignition switch so that when they are activated they will remain activated regardless of whether or not the ignition switch is in the on or off position. You have reviewed Standard No. 108, and reference paragraphs S5.5.3, S5.5.4, S5.5.5, and S5.5.7, copies of which you have enclosed.

The answer is no. Under paragraph S5.5.5, the vehicular hazard warning signal operating unit is required to operate independently of the ignition switch, but no other lamp is required by the standard to do so.

ID: aiam5517

Open
Allen F. Brauninger, Esq. Office of the General Counsel Consumer Product Safety Commission Washington, D.C. 20207-0001; Allen F. Brauninger
Esq. Office of the General Counsel Consumer Product Safety Commission Washington
D.C. 20207-0001;

"Dear Mr. Brauninger: This responds to your letter asking whether window shade intended for use on an automobile is motor vehicle equipment. I apologize for the delay in sending this letter. From the materials you sent us, we assume that you are referring to the roll-down shades that suction onto the rear side window of vehicles, usually for the purpose of keeping the sun off the faces of children strapped into child safety seats. The answer to your question is yes. The window shades are an accessory (a type of motor vehicle equipment) under 49 U.S.C. 30102(a)(7). As explained in my September 16, 1994, letter from this office to Mr. Harleigh Ewell of your office, the National Highway Traffic Safety Administration (NHTSA) uses two criteria in determining whether a device is an 'accessory.' The two criteria are whether: (1) A substantial portion of its expected uses are related to the operation or maintenance of motor vehicles, and (2) it is purchased or otherwise acquired, and principally used, by ordinary users of motor vehicles. Applying these criteria to the window shades, we conclude that they are accessories. We determine a product's expected use by considering product advertising, product labeling, and the type of store that retails the product, as well as available information about the actual use of the product. We assume that the window shade you are referring to has packaging that shows that its purpose is to shield vehicle occupants from the sun while the vehicle is in operation. The shade would typically be acquired and used by ordinary users of motor vehicles (i.e., anyone using the vehicle). Since the shade satisfies both criteria, it is considered to be an 'accessory' and thus motor vehicle equipment. NHTSA has issued no safety standards that apply specifically to window shades that are sold separately from the vehicle. However, as you know, manufacturers of motor vehicle equipment are responsible under our statute for ensuring that their products are free of safety-related defects. If you will send us the information you have regarding the incidence of accidents caused by these window shades, we will forward it to the appropriate NHTSA office. I hope this information is helpful. If you have any further questions, please feel free to contact Mr. Paul Atelsek at this address or by telephone at (202) 366-2992. Sincerely, Philip R. Recht Acting Chief Counsel";

ID: nht74-2.13

Open

DATE: 09/30/74

FROM: AUTHOR UNAVAILABLE; R. B. Dyson; NHTSA

TO: Nabors Trailers, Inc.

TITLE: FMVSS INTERPRETATION

TEXT: This responds to your August 21, 1974, question whether a "logging pole trailer", which consists of a beam to which an axle-mounted bolster can be clamped at different points to accomodate different log lengths, qualifies as a heavy hauler trailer as that term is defined in Standard No. 121, Air brake systems:

"Heavy hauler trailer" means a trailer with one or more of the following characteristics:

(1) Its brake lines are designed to adapt to separation or extension of the vehicle frame; or

(2) Its body consists only of a platform whose primary cargo-carrying surface is not more than 40 inches above the ground in an unloaded condition, except that it may include sides that are designed to be easily removable and a permanent "front-end structure" as that term is used in @ 393.106 of this title.

This also acknowledges receipt of your September 5 and September 17, 1974, letters on the same subject.

The logging pole trailer you describe is a heavy hauler trailer, and as such, Standard No. 121 does not apply to this trailer until September 1, 1976. The beam or "reach", together with the bolster, constitutes the frame of the trailer, and the brake lines are designed to adapt to extension of the bolster element along the beam.

This arrangement differs from the standard highway van which has a one-piece frame with an adjustable tandem axle. The purpose of this sliding arrangement is unrelated to an extension of the frame itself to accomodate the transportation of heavy or oversize loads.

Yours truly,

ATTACH.

NABORS TRAILERS, INC.

Sept. 17, 1974

Sidney Williams -- National Highway Traffic Safety Administration

Dear Mr. Williams:

It should be of interest and concern to the National Highway Traffic Safety Administration that we have not had the sight nor the specifications nor the price of a brake equipped axle assembly that can be certified to meet the requirements of Federal Motor Vehicle Safety Standard 121. We are wholly dependent upon the one source for our brake axle assemblies. From that source we have been told that they have encountered one delay after another in their program to develop and test brakes that will meet the new requirements. Their best hope now is that by the end of October they will be able to give us technical information and sometime in November they will be able to begin shipping certifiable brakes.

The same situation prevails with respect to wheel and drum assemblies. Our supplier of drums have told us that they are conducting tests now and that they should be able to tell us in November what drums will be required for compliance with the new Safety Standard.

You can guess from this information the predicament in which we find ourselves when trailers that we put into production in December scheduled for completion in January will be required by law to be in compliance with SS 121. We are certain that there are many other trailer manufacturers who are dependent upon the same sources of supply that we are who are in the same predicament. There may be other sources of supply for brake axle assemblies and for wheels and drums who are ready to describe and certify their products to meet the new Safety Standard, but we, for one, could not at this time get in schedule with new suppliers.

Sincerely yours, B. H. Smith -- President

NABORS TRAILERS, INC.

Sept. 5, 1974

Sidney Williams -- National Highway Traffic Safety Administration

Dear Mr. Williams:

On November 15, 1973 I sent a collection of our pole trailer catalogs and of photographs of logging pole trailers in service to the Truck Trailers Manufacturers Association in Washington. I thought that these had been sent over to your offices. Perhaps they never did get there. My letter went to Mr. M. L. Higgins who at that time was handling these matters for TTMA, and very shortly after that he resigned and Mr. Burt Weller took his place.

With this letter I am sending you two each of our Catalog 196 and our Form 198 describing our standard types of pole trailers.

The logging pole trailers described in Catalog 196 are those about which we are primarily concerned with respect to MVSS 121. Those trailers are designed and used exclusively in logging operations and move logs from the woods to the saw mills or to storage areas. Logging pole trailers are subjected to unbelievably difficult conditions, or at least unbelievable to those who have never witnessed difficult logging operations. Maintaining brakes and lights on logging pole trailers when the very minimum of equipment is used is difficult and often impossible. When the hardware that is required for compliance with MVSS 121 is added to braking equipment as now being used, the difficulties of maintenance will be multiplied and the likelihood that the brakes will be kept operational is reduced.

On the inside of Catalog 196 you will see good views of the rear assembly of our two popular models, the Logmaster and the SPR. These two trailers are identical in capacity and in usage, and the two models are built simply because some loggers like one type and some like the other. In both models you will see that the rear bolster sits on a frame that sits on the two-spring suspension that sits on the axles. A pole or drawbar connects the front bolster assembly to the rear assembly. The rear assembly can slide along the pole to change the distance between the front and rear bolsters to accommodate various log lengths. If you look closely you will see that the rear assembly is locked into place on the pole by means of clamping collors around the coupling pole ahead of and behind the rear assembly. Also, for safety purposes a pin is dropped through the pole at the rear to avoid the possibility that the trailer might slide off the pole.

You will see in the illustrations that the two hoses for the brakes and the cable for the lighting on the rear assembly are connected to the truck or to the front bolster assembly at the front and are connected to the rear assembly at the rear with quick detachable couplings. You will see that when the distance between the bolsters is relatively short these brake and light lines must be coiled up and supported by the pole. If the trailer should be extended in length, the full length of these lines would be required. It is a characteristic of these trailers that the brake lines are designed to adapt to permitting the distance between the front and rear bolsters to contract and to expand.

Another common practice in the use of logging pole trailers is to load the rear frame assembly on the back end of the truck when the trailer and truck are being carried unloaded back into the woods. This practice is for both economic and safety reasons. When the rear assembly is loaded on the truck the brake lines must be disconnected. Also, no part of the brake system can extend below the bottom of the axles because the axles must rest on the truck frame or on the runners that are put on the truck frame to carry the trailer.

When you look closely at these pictures of these logging pole trailers you will observe that the space between the axles and the load-carrying bolster is limited and is filled with equipment with current types of brakes. The trailers shown have only one air reservoir. In order to comply with MVSS 121 another larger air reservoir will have to be added. There simply is no place to put it on these logging pole trailers without interfering severely with their intended usage. If in addition to this other air reservoir we must add spring-loaded power chambers and the valves and logic boxes and electrical connections required for the anti-skid brake system, it is up to now inconceivable to us how to add that hardware in such a way that it could reasonably be expected to stay on the trailers when they are used in the log woods.

The Models TP and TPC Pole Trailers illustrated in our Form 198 are designed and used primarily for hauling pipe and poles and reinforcing rods and long steel beams and other, long and self-supporting objects. The same difficulties in adding the anti-skid brake equipment and the spring loaded power chambers apply to these trailers as to the logging pole trailers. However, since these two models are used primarily on improved roads the difficulties of maintaining the equipment would not be as great. Trailers of these two models constitute no more than perhaps 50 units a year for us. They do have the same characteristic of logging pole trailers in that the brake lines are designed to be adapted to permitting the distance between the front and rear bolsters to change. There would be the same difficulties on these trailers in getting the speed of brake application and release that there would be on other pole trailers.

I can understand the difficulty of writing an exemption for any one class or category of trailers without letting the exemption be subject to unintended interpretations. However, it has seemed to me since we first became concerned with the problems of MVSS 121 that pole trailers as defined in Part 371.3 of the Federal Motor Vehicle Safety Standards could be exempted without any reasonable misunderstandings. Pole trailers as defined in Part 371.3 were exempted from the requirements of MVSS 108 and have been exempted from certification requirements. I have not understood why they could no also be exempted from MVSS 121, and I think that their categorical exemption would be beneficial rather than detrimental to the highway safety program. I have made all of these statements previously in letters to the National Highway Traffic Safety Administration and to the Truck Trailer Manufacturers Association.

We appreciate very much your consideration of our problems and I thank you again for your telephone call on September 3rd in response to our letter of August 21st.

If it might be helpful to giving you and others concerned a better understanding of our problems, which we think are shared by many others, I would be willing to come to Washington for a conference.

Sincerely yours, B. H. Smith -- President

Enclosures

NABORS TRAILERS, INC.

August 21, 1974

Sidney Williams -- National Highway Traffic Safety Administration

Subject: FMVSS 121 - Air Brake Systems, Docket #74-10, Notice 5

Dear Mr. Williams:

We are unable to determine from the subject Notice 5 and from the discussions and considerations that preceded it whether or not it is the intention of NHTSA that Logging Pole Trailers be considered "Heavy Hauler Trailers" within the definition of that category.

In one way of looking at it nearly all Logging Pole Trailers come within Characteristic (1) of the definition because the brake lines are designed to adapt to permitting the rear frame assembly of the pole trailer to slide on the pole or drawbar and thereby to adapt to extension or contraction of the effective length between the load bearing members. In another way of looking at it, pole trailers would not come within Characteristic (1) because there is no actual separation or extension of the vehicle frame. Actually, in pole trailers there is no frame as such connecting the front and rear load bearing members.

The one consistent and definitive characteristic of pole trailers, as we understand them, is that they consist of a front bolster that rests on the towing tractor and a rear bolster that rests on the trailer suspension and axles with the two connected with a pole on which the rear assembly can slide forward and backward.

In some logging operations the length between the front and rear bolsters is changed frequently, maybe daily. In some operations the length between the bolsters is changed only as the species or types of logs being hauled change. In some operations, on every unloaded trip the rear assembly is moved forward on the pole and is loaded on the truck to be hauled back into the woods. Since logging conditions and practices require different effective lengths between the front and rear bolsters and different problems with respect to the brake lines, practically all of our Logging Pole Trailers are rigged out with quick disconnectors for the brake and light lines at the rear assembly, and to that extent the rigging is similar to that on extendable platform trailers. The difficulties of maintaining good air line connections and unrestricted flow of air are certainly as great on pole trailers as on extendable frame trailers.

There are other inherent problems in applying and maintaining brakes on Logging Pole Trailers that in our opinion should be considered before there is a requirement upon trailer manufacturers to add anti-skid devices, spring loaded power chambers, dual or triple air reservoirs, and the other hardware that goes with the system. For example, up to now we have not been able to devise a way to put spring loaded power chambers on the axles of Logging Pole Trailers without swinging them under the axles. We definitely do not have sufficient clearance for putting the spring loaded power chambers over the axles with the suspensions and construction that we are using now. To put the (Illegible Word) chambers under the axles on pole trailers that are destined for the logging woods is, in our opinion, impracticable. The operators will not be able to keep the power chambers in place. The net result will be that they will knock them off or take them off the trailers and run the trailers without brakes. We run into similar but not insoluble problems with respect to installing additional air reservoirs and all of the other wiring and hardware required in an anti-skid system, but the trailers will have to be redesigned, they will be made substantially more expensive, and they will be less suited to their purpose.

Opinions have been expressed that we should simply assume that the definition of Heavy Hauler Trailers does embrace Logging Pole Trailers and that we should bother ourselves and our customers no more about the problem. We are not willing to leave it there because we cannot afford to be found in violation of the law and to be required to go back and add equipment which we did not furnish when the trailers were built. If we must put the anti-skid equipment on Logging Pole Trailers we must be getting ready for it in our designs and in our production methods, and we must be preparing our customers for the added cost and for the maintenance problems that will be inevitable.

Pole Trailers make up hardly more than 1% of the truck trailers that are manufactured. According to the Bureau of the Census Industrial Report for May, 1974, 189 pole trailers were shipped in May 1974, 214 in April 1974, and 177 in May 1973. For ourselves, the total volume in pole trailers is less than 300 units per year, but that is a substantial portion of our total volume and we are one of the largest suppliers of such trailers to the Southern lumber industry. Could you tell me exactly where we stand with respect to Logging Pole Trailers and MVSS 121?

Sincerely yours, B. H. Smith -- President

ID: 07-002869--21 Aug 07

Open

Mr. Brian Latouf

Director, Safety Regulations & Consumer Information

General Motors North America

Mail Code: 480 111 E18

30200 Mound Road

Warren, MI 48090-9010

Dear Mr. Latouf:

This responds to your request for an interpretation of Federal Motor Vehicle Safety Standard No. 126, Electronic Stability Control Systems. You asked that we confirm your interpretations of four different aspects of the new electronic stability control (ESC) systems rule. Based on the information you provided and our analysis below, we generally agree with your suggested interpretations. Our analysis is divided into four parts as per your questions.

Whether ESC must operate during the ESC sensor initialization period

You first asked us to confirm that FMVSS 126 does not require ESC to be operational during the ESC sensor initialization period. You noted that subparagraph (6) of the definition of ESC and S5.1.2 of FMVSS No. 126 both indicate that ESC systems must be operational at vehicle speeds of 15 km/h and above. However, you argued that different vehicles and ESC systems have different diagnostic and sensor initialization periods, requiring different inputs, after the vehicle is first started, and that it is possible that on some vehicles sensor initialization might not be completed before the vehicle speed reaches 15 km/h. Therefore, you asked that we confirm that the 15 km/h operational requirement prescribed in the definition of ESC and in S5.1.2 applies after the system diagnostic and sensor initialization is completed.

We are able to confirm your interpretation that the 15 km/h low speed threshold prescribed in the definition of ESC and in S5.1.2 applies after the system diagnostic and sensor initialization is completed. We recognize that an ESC system may not be fully operational until after it completes system diagnostic and sensor initialization. While not directly applicable to the 15 km/h operational requirement, we note that it was in recognition of the fact that ESC systems may require a diagnostic and sensor initialization period that we included a diagnostic procedure in S7.10.2 of FMVSS No. 126, as part of the test procedure for evaluating the ESC systems ability to detect malfunctions. An ESC system may not be able to detect a malfunction, or the absence of a malfunction, if it is not yet fully operational, so we included this diagnostic and initialization procedure as part of that test procedure.

Whether compliance with the requirements prescribed in S5.3 and its subparagraphs is determined by testing the vehicle in accordance with S7.10

You next asked us to confirm that the performance requirements of S5.3 of FMVSS No. 126 apply specifically when evaluated according to the procedures of S7.10. You specifically asked about S5.3.3. That paragraph states, in relevant part, that the ESC malfunction telltale must illuminate only when a malfunction(s) exists and must remain continuously illuminated under the conditions specified in S5.3 for as long as the malfunction(s) exists, whenever the ignition locking system is in the On (Run) position. S7.10, which provides a procedure for testing the malfunction telltale, states that the telltale is to illuminate within two minutes of obtaining a specified speed (S7.10.2). You argued that While a possible reading of S5.3.3 is that it requires the malfunction telltale to illuminate instantaneously with the occurrence of the fault, this is neither practicable nor consistent with the test procedure specified in S7.10.

We note that the introductory paragraph of S5, Requirements, states that each vehicle must be equipped with an ESC system that meets the requirements specified in S5 under the test conditions specified in S6 and the test procedures specified in S7 of this standard. Thus, as a general matter, compliance with the requirements prescribed in S5 (of which S5.3 is a part) is evaluated under the test procedures specified in S7 (of which S7.10 is a part).

In terms of providing an interpretation, we will limit our interpretation to the specific issue you asked about, whether S5.3.3 has the effect of requiring the ESC malfunction telltale to illuminate instantaneously with the occurrence with the fault. The answer is no. We recognize that it may not be practicable for a malfunction telltale to illuminate instantaneously with the occurrence of a fault. As you noted, S7.10 provides a test procedure for evaluating ESC malfunction detection. After one or more malfunctions is simulated, a vehicle is subjected to a specified driving protocol. See S7.10.2.[1] Under the procedure, verification is made that the telltale is illuminated within two minutes of the vehicle obtaining a specified speed. This procedure accommodates the need for system diagnostic and sensor initialization (discussed above) and the fact that a malfunction telltale may not illuminate instantaneously with the occurrence of a fault.

Whether FMVSS No. 126 allows the same test protocol to clear ESC faults (and extinguish the malfunction telltale) as that which is specified to detect ESC faults (and illuminate the malfunction telltale)

You next asked us to confirm that the driving protocol of S7.10.2 is permissible for purposes of verifying that the ESC malfunction has been cleared under S7.10.4, which does not contain any specific protocol. You argued that As ESC systems are generally designed, the diagnostic procedures required to detect a fault (e.g., vehicle speed, steering-wheel inputs, etc.) are also required to determine that the fault has been cleared. Thus, not all ESC systems would necessarily be able to clear a fault just by restarting the vehicle, without any diagnostic procedures.

We recognize that just as a diagnostic procedure may be necessary for an ESC system to detect a fault, it may also be necessary to determine that the fault has been cleared. The lack of an identical driving protocol in S7.10.4 was an oversight. We expect to correct this in a forthcoming response to petitions for reconsideration to the ESC final rule. In the meantime, in testing a vehicle under S7.10.4, we would subject a vehicle to the S7.10.2 driving protocol if the telltale is not already extinguished after the engine has been started.

Whether FMVSS No. 126 permits the use of multi-mode ESC controls

You finally asked us to confirm that multi-mode controls are permitted under S5.4 of FMVSS No. 126. You argued that most vehicles are designed with multi-mode controls, which you described as potentially involv[ing] one activation to disable the vehicles traction control system, another activation to alter the ESC algorithm to an intermediate sport mode, another activation to fully disable ESC, and a final activation to restore traction control and ESC to full on. You further argued that these types of controls are widely used by manufacturers and work well for consumers.

S5.4 allows manufacturers to include in their ESC systems either an ESC Off control whose only purpose is to place the ESC system in a mode in which it will no longer satisfy the performance requirements of S5.2.1, S5.2.2 and S5.2.3, or controls for other systems that have an ancillary effect upon ESC operation. The agency made this distinction because of a difference in labeling requirements between the two types of controls. The labeling requirements at issue do not apply until September 1, 2011.

The multi-mode controls you ask about have attributes that overlap the two categories of controls identified in S5.4. We expect to clarify the regulatory text of S5.4 in a forthcoming response to petitions for reconsideration to the ESC final rule.

We confirm, however, that these multi-mode controls are permissible under S5.4. We note that S5.4 also states that Controls of either kind that place the ESC system in a mode in which it will no longer satisfy the performance requirements of S5.2.1, S5.2.2 and S5.2.3 are permitted, provided that the further requirements of S5.4s subparagraphs are met. Therefore, the multi-mode controls would also need to meet the requirements of S5.4.1, S5.4.2, and S5.4.3.

While S5.4.1 applies in the same manner to both categories of controls identified in S5.4, the other two subparagraphs specify different labeling requirements for the two types of controls. Since the multi-mode controls you ask about have attributes that overlap the two categories of control, we would expect to clarify in our response to petitions how the labeling requirements apply to multi-model controls. It is not necessary to resolve that issue in this interpretation since the requirements do not apply before September 1, 2011.

If you have any further questions, please feel free to contact Rebecca Schade of my staff at (202) 366-2992.

Sincerely yours,

Anthony M. Cooke

Chief Counsel

ref:126

d.8/29/07




[1] E.g., starting the engine, achieving a speed of roughly 48 km/h and making both a left and a right turn within 2 minutes.

2007

ID: nht92-2.28

Open

DATE: November 16, 1992

FROM: Bill Dobberteen -- Product Launch Engineer, Prince Corporation

TO: Office of the Chief Council -- NHTSA

TITLE: None

ATTACHMT: Attached to letter dated 2/4/93 from John Womack to Bill Dobberteen (A40; Part 576; VSA 102)

TEXT:

We are developing an overhead storage compartment for a utility vehicle. The bin will be secured to the headliner in back of the rear seat. We are requesting to know all regulations this product must meet. Enclosed is a sketch of product placement and function.

(Graphics omitted.)

ID: nht76-2.32

Open

DATE: 07/23/76

FROM: AUTHOR UNAVAILABLE; F. Berndt; NHTSA

TO: R. H. Willcox, Esq.

TITLE: FMVSS INTERPRETATION

TEXT: This is in reply to your letter of June 16, 1976, asking several questions with respect to the applicability of 15 USC 1397(a)(2)(A) of the National Traffic and Motor Vehicle Safety Act and Federal Motor Vehicle Safety Standard No. 108 (49 CFR 571.108) to a product manufactured by your client, the W.B. Marvin Manufacturing Company. This product is "a screen which fits on the front part of the automobile and protects the radiator, headlamps and other lower parts of the car" from bugs.

W.B. Marvin would not be in violation of either the Act or Standard No. 108 by manufacturing and selling these screens. Such liability as may exist centers on the installation of them. Standard No. 108 establishes requirements for lighting equipment on new motor vehicles, and for replacement equipment. One of the requirements of SAE Standard J580a, Sealed Beam Headlamp, June 1966, incorporated by reference in Standard No. 108, is that "a headlamp, when in use, shall not have any styling or other feature, such as a glass cover or grille in front of the lens." Since the screen is positioned in front of the headlamps it would be an "other feature" of the type intended to be prohibited by the standard if, as appears likely, it affects compliance with headlamp photometrics (SAE Standard J579) or headlamp aim (SAE Standard J580). If installation results in a noncompliance, the screen could not, therefore, be legally installed by a vehicle manufacturer, distributor, or dealer as original equipment on a motor vehicle.

As for replacement equipment, under Section 1397 (a)(2)(A) of the Act an automobile owner may himself modify his vehicle in any manner he chooses, but modifications performed at his request by others may not "render inoperative in whole or part, any device or element of design installed on . . . a motor vehicle . . . in compliance with an applicable Federal motor vehicle safety standard." If installation of the screen affects compliance with headlamp photometrics or other requirements, then it would appear to "render inoperative" a lighting device installed in accordance with a Federal motor vehicle safety standard, within the meaning of Section 1397(a)(2)(A). Installation by the auto service center of the retailer would therefore be prohibited, since such a facility is deemed a "motor vehicle repair business."

There are no Federal motor vehicle safety standards that directly apply to the screen as an item of motor vehicle equipment, nor do I know of any other Federal regulation affecting it.

I hope this letter is responsive to your questions.

YOURS TRULY,

CHESTER, HOFFMAN, PARK, WILLCOX & ROSE June 16, 1976

National Highway Traffic Safety Administration

Attention: Frank Berndt Acting Chief Counsel

Re: W. B. Marvin Manufacturing Co.

Our firm represents The W. B. Marvin Manufacturing Co. of Urbana, Ohio. They have contacted us concerning a product they wish to manufacture for use on automobiles which may involve the application of the Federal Motor Vehicle Safety Standards, particularly Standard 108 relating to headlamps. I personally have talked with Mr. Vinson of your office concerning the problem and he has advised me to write to you requesting an opinion concerning this situation. There is also a question as to the applicability of Section 108 of the National Traffic and Motor Vehicles Safety Act as amended in 1974.

The residents of south Florida have been bothered for years by the "lovebug" problem. These bugs appear in large numbers and accumulate on the headlamps and windshields and other parts of the cars driven on the south Florida highways. The W. B. Marvin Manufacturing Co. has designed a screen which fits on the front part of the automobile and protects the radiator, headlamps and other lower parts of the car from these bugs. At the same time, it is designed to direct the air flow in such a fashion that the bugs are diverted over the windshield so that they do not have an opportunity to come in contact with the windshield at all. This screen has been tested in Florida and had proved to be very successful. Pictures of the screen are enclosed for your information. The screen is designed for easy installation and removal. Tubes are attached to the front bumper of the car. The screen is attached to the car by sliding tubes affixed to the screen into the tubes affixed to the front bumper. Because of this design, the screen can be assembled relatively simply by the car owner or any auto service center. The car owner by himself may then mount the screen on the front of the car or remove it as required.

Without the screen, the bugs are plastered against the headlamps, thus affecting the amount of light coming from the headlamps. With the screen, the bugs will be on the screen, which is easily cleaned, rather than the headlamps. However, there is no question that when installed the screen will reduce the amount of light produced by the headlamps on to the roadway and this raises the question as to the applicability of the Federal Motor Vehicle Safety Standards and Section 108 of the National Traffic and Motor Vehicle Safety Act.

It is W. B. Marvin Manufacturing Company's intention to manufacture this screen and sell it to a retailer such as Sears Roebuck & Co. The retailer would sell the screen directly to the car owner who could either install it himself or have it installed at the retailer's auto service center.

Our client is ready to manufacture this screen and sell it to a retailer or retailers as described above. However, we do not want to advise them to proceed if the manufacturing of the screen or the manner in which the screen is sold and installed in any way violates any applicable Federal laws, rules or regulations. We are therefore requesting your opinion as to the applicability of the Federal Motor Vehicle Safety Standards and Section 108 of the National Traffic and Motor Vehicle Safety Act to the manufacture, sale and installation of this screen. In this regard, we raise the following questions: 1. Do the Federal Motor Vehicle Safety Standards and in particular, Standard 108, apply to this screen as manufactured by The W. B. Marvin Manufacturing Co.?

2. By manufacturing and selling the screen described above, is The W. B. Marvin Manufacturing Co. in violation of the Federal Motor Vehicle Safety Standards and in particular Standard 108?

3. By manufacturing and selling the screen as described above, is The W. B. Marvin Manufacturing Co. in violation of Section 108, Subparagraphs A (1) and A (2) of the National Traffic and Motor Vehicle Safety Act as amended in 1974?

4. Is there any violation of the Federal Motor Vehicle Safety Standards or Section 108 of the National Traffic and Motor Vehicle Safety Act if the screen in question is manufactured by W. B. Marvin Manufacturing Co., sold by them to a retailer such as Sears Roebuck & Co. and sold by the retailer to the automobile owner who installs the screen himself?

5. If the car owner purchases the screen from a retailer and has the screen installed at the retailer's auto service center, is the retailer and/or the manufacturer in violation of Section 108, Subparagraphs A (1) and A (2) of the National Traffic and Motor Vehicle Safety Act as amended in 1974?

6. Does the auto service center of the retailer constitute a "motor vehicle repair business" as used in Section 108, Subparagraphs A (2) (a) of the National Traffic and Motor Vehicle Safety Act?

7. Does the manufacturing, sale and installation of the screen in question come within the meaning of the phrase "render inoperative" as that phrase is used in Section 108, Subparagraph A (2) (a) of the National Traffic and Motor Vehicle Safety Act?

8. To your knowledge, are there any other Federal statutes or regulations which would prevent the manufacturing and sale of this screen?

As indicated before without the use of the screen the bugs will be plastered against the headlamps and windshield of the vehicle, thus affecting the visibility of the driver. With the screen, the bugs will be contained on the screen from which they can be easily removed and will be diverted over the windshield. In view of this, it does not appear to us that the use of the bug screen renders the vehicle less safe than without the screen. Therefore, if it is your opinion that Section 108 of the National Traffic and Motor Vehicle Safety Act is applicable to this situation, we hereby request that you exempt the manufacturer and the retailer from the application of Section 108.

If you need additional information, please call the undersigned and I will provide you with what you need if possible. Thank you for your consideration of this problem.

Roderick H. Willcox

(Graphics omitted)

ID: nht92-9.22

Open

DATE: February 5, 1992

FROM: Frederick Harris -- Proprietor, Frederick Harris Associates

TO: National Highway Traffic Safety Institute

TITLE: None

ATTACHMT: Attached to letter dated 4/3/92 from Paul J. Rice to Frederick Harris (A39; Std. 302; VSA 102(4))

TEXT:

I am planning to put on the market a cloth device containing light weight plastic items useful to a baby while in an automobile. The cloth item will be adjacent to but not touching a child sitting or laying in a nearby safety seat.

Please advise what national safety standards/regulations may apply to such a device from the viewpoint of need to be fire-safe, or any other safety considerations.

ID: nht92-1.30

Open

DATE: December 10, 1992

FROM: Curtis J. Crist -- Product Development, US Marine

TO: Paul Jackson Rice -- Chief Counsel, NHTSA

TITLE: None

ATTACHMT: Attached to letter dated 12/29/92 from Paul J. Rice to Curtis J. Crist (A40; Std. 108); Also attached to letter dated 10/08/76 from Frank Berndt (signature by Stephen P. Wood) to Donald I. Reed; Also attached to letter dated 12/21/77 from Joseph J. Levin, Jr. to Warren M. Heath

TEXT:

Please confirm that the enclosed 1976 and 1977 clarifications relative to front side marker lamps on boat trailers are still valid.

Also, I would like to attempt to eliminate the requirement for rear "identification lamps" on boat trailers 80 or more inches in overall width. Many of today's boat trailers have rear crossmembers positioned as much as 24 inches forward of the aft end of their frame. Consequently, the identification lamps are essentially hidden from view by the boat's hull bottom and outdrive or outboard lower unit. Please advise me as to what action I must take to have elimination of this requirement considered.

Thank you for your assistance.

ID: nht87-2.77

Open

TYPE: INTERPRETATION-NHTSA

DATE: 08/26/87

FROM: AUTHOR UNAVAILABLE; Erika Z. Jones; NHTSA

TO: Laurie J. Schonauer -- Bethell Company

TITLE: FMVSS INTERPRETATION

TEXT: Ms. Laurie J. Schonauer Bethell Company P.O. Box 191 Colton, CA 92324-0087

Your letter of May 14, 1987, addressed to the office of Vehicle Safety Standards, was referred to me for reply. Along with your letter, you sent marketing literature, and samples of your product, a device you are marketing under the name "Insta-cone." Yo ur literature indicates your intention to market this device principally as an emergency traffic warning device. The product is made of bright orange corrugated paper and has three connected triangular faces. You shipped your product folded along the leg s of the triangles, and packaged in a clear paper wrapper. A user unfolds your device, and connects tabs and slots along the legs of the triangles to form a pyramid. At the base of two triangles that form the pyramid is a long tab with covered adhesive s trips. According to your literature, a user assembles your product, uncovers the adhesive, and secures it to the ground with these adhesive taps. Buried in one leg of the triangle is a small nail for securing the product in ground where the adhesive will not take hold.

You ask the questions. The first is whether this agency will send you a letter stating that your product may he used to indicate the presence of a disabled passenger vehicle. The second question is whether this agency will send you a "statement. . .that it is a good idea for passenger vehicles to have a first aid kit, (your product), or even flares in the trunk in case of an accident or breakdown." The National Highway Traffic Safety Administration (NHTSA) is an agency of the Department of Transportation, and has authority to issue safety standards applicable to new motor vehicles and certain items of motor vehicle equipment. However, NHTSA does no t approve nor certify motor vehicles or motor vehicle equipment, or endorse and commercial product. Instead, the National Traffic and Motor Vehicle Safety Act establishes a "self-certification" process under which each manufacturer must certify that its product meets agency safety standards, or other applicable standards. Periodically, NHTSA tests whether vehicles or equipment comply with these standards, and may investigate alleged safety-related product defects.

Standard 125, Warning Devices, sets uniform design specifications for devices used to warn approaching traffic of the presence of a disabled vehicle. The Standard applies to any such device without a self-contained energy source that is designed to be ca rried in motor vehicles and erected when needed to warn approaching traffic. Your product is an item of motor vehicle equipment, and falls under this Standard. Thus, the "Insta-Cone" must meet the requirements of Standard 125, such as those on configurat ion, color, and selectivity. The Vehicle Safety Act provides for a civil penalty of $1,000 for each violation of a safety standard and a maximum penalty of $800,000 for a series of violations. In addition, the Vehicle Safety Act requires manufacturers to remedy their products if they fail to comply with all applicable safety standards. In answer to your first question, you do not need a letter from this agency to market your device as motor vehicle equipment for use to warn approaching traffic of the pr esence of a stopped vehicle, so long as your device meets FMVSS 125 requirements. However, NHTSA's preliminary review of your product indicates that the "Insta-cone" may not comply with the color, reflectivity, luminance, stability, and durability requir ements of Standard 125. If your product fails to meet these or other Standard 125 requirements, you cannot legally market and sell it as a warning device.

As I stated earlier in this letter, this agency does not endorse commercial products. In answer to your second question, NHTSA must decline to supply you with the kind of statement you suggest. Sincerely,

Erika Z. Jones Chief Counsel

Enclosure Standard No. 125 - omitted

May 14, 1987

National Highway Traffic Safety Administration Office of Vehicle Safety Standards 400 Seventh Street, S.W. Washington, DC 20590

Re: Safety Cones

As per Captain Wood of the California Highway Patrol in Sacramento, I am sending a sample and general information about a new safety cone.

It is my understanding that an item of this nature does not need approval. I have a couple reasons for writing this letter. First, is it possible to get a letter from you stating that these cones may be used on the shoulder to indicate the presence of a disabled passenger vehicle as shown in the illustration on the package. Second, in order for us to try to promote safety, can we get a statement from the Safety Administration that it is a good idea for passenger vehicles to have a first aid kit, safety cones, or even flares in the trunk in case of an accident or breakdown?

To give you an idea of the massive programs being set up to help promote safety and our disabled citizens, I am forwarding copies of letters sent that will more explain what we are doing. If I could get some support from this Administration we can possib ly help save some lives, as well as promote workshops for the disabled. Please contact me at your earliest convenience or write. We will be starting this program on July 1st, 1987.

Thank you for your time.

Sincerely,

Bethell Co.

Laurie J. Schonauer

LJS/kb Enclosures cc: Easter Seal Society/ CBS News / California Highway Patrol PRODUCTION DESCRIPTION "Insta-Cone" Emergency Traffic Safety Cones are a new, low cost, 12" safety cone made of ridged corrugated cardboard. Three bright fluorescent cones are neatly shrink - wrapped together for easy storage in the trunk of a passenger vehicle or behind the seat, out of the way until you need it.

*Visible: Eye catching reflective surface gets attention. *Durable: Withstand high winds because of the sturdy 3 dimension design and six pressure sensitive adhesive tabs. *Convenient: Instantly snaps together for quick use. November 18, 1986

File No.: 62.A218.A6078

Laurie J. Schonauer Bethall Company P.O. Box 191 Colton, CA 92324-0087

Dear Ms. Schonauer:

The pyramidal foldable Insta-Cones described in the attachments to your letter of October 31, 1986, are a type of device that does not require approval by this Department. They may be faced on the shoulder to indicate the presence of a disabled passenger vehicle as shown in the illustration on the package. The Insta-Cones are not a legal substitute for the triangular emergency reflectors that are required to be carried by trucks, truck tractors, and travel trailers that are 80 or more inches wide. Those reflectors must meet the regulations of Federal Motor Vehicle Safety Standard No. 125, copy enclosed. Further information on that standard may be obtained from:

National Highway Traffic Safety Administration Office of Vehicle Safety Standards 470 Seventh Street, SW Washington, DC 20590

We hope this information will be helpful to you. The samples you sent for our review are being returned with this letter. Very truly yours,

L. P. WOOD, Captain Commander Commercial and Technical Services Section

Enclosures April 28, 1987

Ms. Laurie J. Schonauer Bethell Company P.O. BOX 191 Colton, CA 92324-0087

Dear Laurie,

Thank you for your decision to utilize the Easter Seal Rehabilitation Workshop for assembly and packaging of the INSTA-CONE Safety Cone and Auto-Pack. We look forward to accomplishing your work with quality and efficiency in a timely manner.

Sincerely,

Jacqueline M. Peel Executive Director

JMP/cb

cc: Robert LaPage Plant Manager

PROPOSAL TO CBS/KNX NEWS RADIO (omitted)

Request an Interpretation

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

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

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

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

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