ID: 9544

Mr. Bob Carver
Product Engineering
Wayne Wheeled Vehicles
13311 Industrial Parkway
Marysville, OH 43040

Dear Mr. Carver:

This responds to your letter of January 8, 1994, asking two questions concerning a recent amendment to Standard No. 217, Bus Emergency Exits and Window Retention and Release (57 FR 49413; November 2, 1992). Your questions and the response to each follow.

1.There's some confusion here in our engineering department regarding the interpretation of the "Daylight Opening" and "Unobstructed Opening" as it applies to the new side emergency door specification in FMVSS 217. Page 2 shows the allowable obstruction and the context in which "Daylight Opening" and "Unobstructed Opening" are used. Page 3 shows some measurements of our seats placed according to the "30 cm minimum" shown on page 2. Page 4 shows four different interpretations of the "Unobstructed Opening" area. Depending on the interpretation, between 9 and 15 people may be accommodated by a side emergency door. My question is this: of the four possibilities shown, which definition of the "Unobstructed Opening" area is correct? Mr. Hott indicated definition 4.

The term "daylight opening" is defined in the Final Rule as "the maximum unobstructed opening of an emergency exit when viewed from a direction perpendicular to the plane of the opening." An obstruction in this context would include any obstacle or object that would block, obscure, or interfere with, in any way, access to that exit when opened. In determining the "maximum unobstructed opening of an emergency exit," we would subtract, from the total area of the opening, the area of any portions of the opening that cannot be used for exit purposes as a result of the obstruction. The area measurements would be taken when viewed from a direction perpendicular to the plane of the opening.

Your question specifically concerns how the "maximum unobstructed opening" of a side door is measured when the opening is partially obstructed by a seat. In the case of the illustrated door exit, occupants would use the exit by movement along the floor. This would be considered in determining the extent of an obstruction. None of the four examples you enclosed with your letter correctly illustrates the area that would be credited for the illustrated exit. The following regions would not be credited for this exit: (1) the area visually obstructed by the seat; (2) your region A2, an area bounded by a horizontal line tangent to the top of the seat back, a vertical line tangent to the rearmost portion of the top of the seat, the upper edge of the door opening, and the edge of the door forward of the seat; (3) your region A5, an area bounded by the seat back, a horizontal line tangent to the top of the seat back, and the edge of the door forward of the seat; and (4) your region A8, an area bounded by the seat leg, the floor, the lower edge of the seat bottom, and the edge of the door forward of the seat. Because the seat would make the last three regions unusable as exit space for a person traveling along the floor of the bus towards the exit, they would not be credited for that exit.

You should be aware that the agency published a notice of proposed rulemaking to amend Standard No. 217 on December 1, 1993 (58 FR 63321). The notice proposed two alternate means for determining the maximum amount of area that will be credited for all types of emergency exits on school buses. The agency is currently reviewing the comments received in response to this notice. I am enclosing a copy of this notice.

2.Here is an excerpt from FMVSS 217 S5.5.3(a):

"Each school bus ....shall have the designation "Emergency Door" or "Emergency Exit" as appropriate, .... For emergency exit doors, the designation shall be located at the top of, or directly above, the emergency exit door on both the inside and outside surfaces of the bus..... For emergency window exits, the designation shall be located at the top of, or directly above, or at the bottom of the emergency window exit on both the inside and outside surfaces of the bus."

I've seen a two-sided sticker used by other bus manufacturers. It is applied on the inside surface of a window and the same image "Emergency Door" or "Emergency Exit" can be read from both inside and outside the bus. Is it permissible for us to use this sort of decal, assuming it meets all other (i.e., FMVSS 302)?

The answer to your question is yes. The agency addressed this issue in an October 2, 1978, letter to Mr. E.M. Ryan of Ward Industries, Inc. I am enclosing a copy of this letter.

I hope you find this information helpful. If you have any other questions, please contact Walter Myers of my staff at this address or by phone at (202) 366-2992.

Sincerely,

John Womack Acting Chief Counsel

Enclosures

ref:217 d:3/24/94

ID: 8210a

Mr. Thomas L. Wright
Coordinator, Technical Support Unit
State of New Jersey
Department of Law and Public Safety
Division of Motor Vehicles
Trenton, NJ 08666

Dear Mr. Wright:

This responds to your letter to Patrick Boyd of the National Highway Traffic Safety Administration's (NHTSA's) Office of Vehicle Safety Standards, concerning window tinting. Your letter has been referred to my office for reply.

Your questions relate to a January 22, 1992 (57 FR 2496) notice of proposed rulemaking (NPRM) on the tinting requirements of Safety Standard No. 205, "Glazing Materials." You ask about the status of the NPRM. The agency received a large number of comments on this rulemaking. We have reviewed the comments and are analyzing the issues raised in this rulemaking.

You also ask about a statement in the NPRM about Federal preemption of state window tinting laws. You ask whether Federal law preempts a state law that permits add-on window tinting material for medical or aesthetic reasons.

As explained below, the answer is no, provided that the state law regulates conduct other than that regulated by Federal law. Your question was addressed in the NPRM's discussion of the Federalism implications of the proposed rule (p. 2507).

By way of background, NHTSA issued Standard 205 under the authority of the National Traffic and Motor Vehicle Safety Act. The standard currently imposes a minimum level of light transmittance of 70% in all areas requisite for driving visibility (which includes all windows on passenger cars). The primary purpose of this requirement is to ensure adequate visibility through the windows, thereby reducing the risk of a motor vehicle crash.

Section 103(d) of the Safety Act provides that:

Whenever a Federal motor vehicle safety standard ... is in effect, no State or political subdivision of a State shall have any authority either to establish, or to continue in effect, with respect to any motor vehicle or item of motor vehicle equipment any safety standard applicable to the same aspect of performance of such vehicle or item of equipment which is not identical to the Federal standard.

Whether state law is preempted under 103(d) depends in part on the conduct that is regulated by that law. Federal safety standards regulate the manufacture and sale of new motor vehicles and new items of motor vehicle equipment. State law would be preempted to the extent it established performance requirements applicable to the manufacture of vehicles or glazing that differ from those in Standard 205. State law would also be preempted if it purported to allow the manufacture or sale of glazing materials or new vehicles containing glazing material that did not meet the specifications of Standard 205.

Federal law also regulates modifications made to new and used vehicles by motor vehicle manufacturers, distributors, dealers and repair businesses. Section 108(a)(2)(A) of the Safety Act provides that:

No manufacturer, distributor, dealer, or motor vehicle repair business shall knowingly render inoperative, in whole or in part, any device or element of design installed on or in a motor vehicle ... in compliance with an applicable Federal motor vehicle safety standard.

The effect of this is to impose limits on the tinting practices of businesses listed in 108(a)(2)(A). These businesses may not install tinting on new or used vehicles that reduces the light transmittance of windows covered by Standard 205 to a level below the Federal requirement of 70 percent. A state law would be preempted if it purported to allow modifications violating Standard 205 by these named businesses. Section 108(a)(2)(A) does not apply to actions by individual vehicle owners.

Because Federal safety standards regulate the manufacture and sale of new motor vehicles, state requirements applicable to the registration and inspection of motor vehicles after the first sale to a consumer are not preempted merely because they are not identical to the Federal safety standards, as long as they do not interfere with the achievement of the purposes of Federal law. Therefore, a state could permit the registration of a vehicle which had been altered by its owner by the addition of window tinting, even when the tinting reduces the light transmittance below the Federal standard. However, the state cannot legitimize conduct - the rendering inoperative of glazing by commercial businesses installing window tinting - that is illegal under Federal law.

I have enclosed a copy of the Report to Congress on Tinting of Motor Vehicle Windows which you requested. I hope you find this information helpful. If you have any other questions, please contact Marvin Shaw of my staff at this address or by phone at (202) 366-2992.

Sincerely,

John Womack Acting Chief Counsel

Enclosure

ref:205 d:3/11/93

ID: 3324o

Mr. Donald Smith
Chief Inventor
New Innovative Systems
1047 E. Vernon Road
Philadelphia, PA 19146

Dear Mr. Smith:

This is in reply to your recent undated letter regarding the "Highway Automatic Communications Indicator (HACI)", as supplemented by a telephone conversation between you and Stephen Wood of my staff on December 20, l988. You have asked for approval of your device.

The HACI "will display, via a transparent display screen mounted in the rear window, pre-programmed distress messages, activated only when with the automobile is at a complete standstill." The diagram of the display alert indicates that the message would appear in the middle of the rear window, rather than at the bottom of the window where the lamp would be. When not activated, the device would be transparent. It would be activated by a special switch, not by the brake pedal. It is our understanding that the HACI would be activated only when the vehicle is stationary, and is not wired into the brake light or hazard light system.

The National Highway Traffic Safety Administration has no authority to approve or disapprove individual inventions or devices. We can, however, advise you as to the relationship of the HACI to the Federal motor vehicle safety standards and the National Traffic and Motor Vehicle Safety Act under the authority of which the standards are issued. These standards must be met at the time a vehicle is sold to its first purchaser, and persons other than the purchaser may not modify a vehicle after its sale in a manner that, in essence, renders it noncompliant with any standard.

There are three standards potentially affected by the HACI. The first is the lighting standard, Standard No. l08. Since the HACI's display screen is mounted in the rear window, a problem could arise if the center high mounted stop lamp required by Standard No. l08 is also mounted in that area. The HACI is permissible as original vehicle equipment as long as it does not impair the effectiveness of the high mounted lamp, or any other lamp required by Standard No. l08. While this determination is the responsibility of the vehicle manufacturer (or dealer, if the HACI is installed after vehicle manufacture but before sale to its first purchaser) in the first instance, it appears to us that the effectiveness of the high mounted lamp would not be impaired. We base this conclusion on our understanding that the message would appear in the middle of the rear window, instead of at the bottom of the window where the lamp would be and that it would apparently be activated only when the vehicle was stationary, such as parked on the side of the road.

The second standard potentially affected is Standard No. lll, relating to rearview mirrors. This standard specifies a field of view to be met by the inside rearview mirror; if the mirror does not provide this field of view, an outside mirror on the front seat passenger side must be provided. Since your device is reportedly transparent when not activated, and would be activated only when the vehicle is stationary, it may well be that there is no necessity for the addition of an outside mirror. However, we do not have sufficient information to determine whether the HACI would impede the field of view under all conditions.

The third standard potentially affected is Standard No. 205, relating to glazing. This requires, in part, that all glazing in passenger cars have at least 70 percent light transmittance. To the extent that the display screen reduces light transmittance, it could create a noncompliance with this standard. However, because you have indicated that your display screen is transparent, it does not appear likely that any reduction in light transmittance would fall below the specified minimum.

With this guidance and your knowledge of the HACI, you should be able to judge whether installation of the HACI either before or after the initial sale of a passenger car might be regarded as creating a noncompliance with a Federal motor vehicle safety standard, or otherwise be in violation of the Act. An official judgment regarding noncompliance or violation is made by the agency only in the context of an enforcement proceeding.

In addition, you should be aware that the HACI remains subject to the laws of the individual States. We cannot advise you of its legality under these laws. To obtain an opinion on this matter, you may wish to consult the American Association of Motor Vehicle Administrators, 4600 Wilson Blvd., Arlington, Va. 22203.

Sincerely,

Erika Z. Jones Chief Counsel

/ref:108 d:l2/29/88

ID: 3328o

Mr. Frank J. Trecy
General Manager - Manufacturing
Miller Structures, Inc.
58120 C. R. 3 South
P. O. Box 1283
Elkhart, Indiana 46515

Dear Mr. Trecy:

I am writing in response to your request for an interpretation of whether Standard No. 115; Vehicle Identification Number - Basic Requirements (49 CFR 571.115) would apply to your company's portable commercial use structures. In your letter to me, you stated that Miller Structures, Inc. manufactures offices, storage buildings, classrooms, laboratories, branch banks, medical clinics, and other related commercial buildings on axles. This allows the structures to be transported to the desired location by attaching them to a truck tractor and moving them over the roads. You state that a "considerable" number of your units go to a location and are placed there permanently. You inform us that other buildings are placed on a location "for varying lengths of time" and are then relocated.

In a subsequent telephone conversation with Dorothy Nakama of my office, you stated that the structures are not self-propelling but must be towed by a semi-trailer or truck. Some of these structures have removable running gears. You also stated that the structures are constructed very much like mobile homes, and that the structures are intended to go on the public roads at least once, in order to get to their designated sites. You also stated that your structures are not regulated by the U. S. Department of Housing and Urban Development (HUD) because they are not homes.

Standard No. 115, and all of our safety standards, apply only to vehicles that are "motor vehicles," within the meaning of the National Traffic and Motor Vehicle Safety Act (15 U.S.C. 1381 et seq.). The term "motor vehicle" is defined at section 102(3) of the Safety Act as follows:

"Motor vehicle" means any vehicle driven or drawn by mechanical power manufactured primarily for use on the public streets, roads, and highways, except any vehicle operated exclusively on a rail or rails. We have interpreted this language as follows. Vehicles that are equipped with tracks or are otherwise incapable of highway travel are plainly not motor vehicles. Agricultural equipment, such as tractors, are not motor vehicles. Further, vehicles designed and sold solely for off-road use (e.g., airport runway vehicles and underground mining vehicles) are not considered motor vehicles, even though they may be operationally capable of highway travel. Vehicles, such as mobile construction equipment, that use the public roads only to travel between job sites and which typically spend extended periods of time at a single job site are not considered motor vehicles. In such cases, the use on the public roads is merely incidental, not the primary purpose for which the vehicle was manufactured.

On the other hand, vehicles that use the public highways on a necessary and recurring basis are motor vehicles. For instance, utility vehicles like the Jeep are plainly motor vehicles, even though they are equipped with special features to permit off-road operation. If a vehicle's greatest use will be off-road, but it will spend a substantial amount of time on-road, NHTSA has interpreted the vehicle to be a "motor vehicle". Further, if a vehicle is readily usable on the public roads and is in fact used on the public roads by a substantial number of owners, NHTSA has found the vehicle to be a motor vehicle. This finding was made with respect to dune buggies and regardless of the manufacturer's stated intent regarding the terrain on which the vehicles were to be operated.

Based on the information you have provided, it appears that your portable structures are not "motor vehicles" within the meaning of the Safety Act and, therefore, are not subject to the requirements of Standard No. 115 or any other of our safety standards. This conclusion is based on our judgment that the vehicles seem analogous to mobile construction equipment - i.e., the on-road use of the vehicles appears to be incidental and not the primary purpose for which the vehicles are manufactured. Please note that this conclusion is based solely on the facts presented in your letter. We may reexamine this conclusion if additional information becomes available that would warrant a reexamination.

Additionally, you should note that this interpretation applies only to Federal requirements. The individual States may establish their own identification requirements for vehicles that are not subject to the Federal identification requirements, such as your mobile structures. Thus, the State of South Dakota could establish identification requirements applicable to your mobile structures sold in that State.

I hope the information provided above is useful. If you need further information on this subject, please contact Dorothy Nakama at (202) 366-2992 or write to me again.

Sincerely,

Erika Z. Jones Chief Counsel

/ref:VSA#115 d:l2/30/88

ID: 7685

Mr. Paul D. Barron
Professional Technologies International Inc.
400 South Vermont #116
Oklahoma City, OK 73108

Dear Mr. Barron:

This responds to your inquiry about this agency's requirements that are applicable to your product, a "UV Heat Shield." Your sales literature explains that this product is a UV protective window film that permits between 88 to 92 percent light transmission through the front windshield. You state that the UV Heat Shield blocks ultra-violet radiation from entering the vehicle's occupant compartment. I am pleased to have this opportunity to explain our regulations to you.

By way of background information, section 103 of the National Traffic and Motor Vehicle Safety Act ("Safety Act," 15 U.S.C. 1392) authorizes NHTSA to issue safety standards for new motor vehicles and new items of motor vehicle equipment. NHTSA does not however approve or certify any vehicles or items of equipment. Instead, the Safety Act establishes a "self-certification" process under which each manufacturer is responsible for certifying that its products meet all applicable safety standards. The agency periodically tests vehicles and items of equipment for compliance with the standards. In addition, the Safety Act requires manufacturers to recall and remedy any motor vehicle or item of motor vehicle equipment that contains a safety-related defect.

Under the authority of the Safety Act, NHTSA has issued Standard No. 205, Glazing Materials, which specifies performance and location requirements for glazing used in vehicles. These requirements include specifications for minimum levels of light transmittance (e.g., 70 percent in areas requisite for driving visibility, which includes all windows in passenger cars). The purpose of this requirement is to ensure driver visibility through the windows, thereby reducing the risk of a motor vehicle crash.

Manufacturers must certify that their new vehicles comply with the requirements of all applicable safety standards. If, before the vehicle were first purchased by a consumer, a subsequent manufacturer or dealer were to install your window film over the glazing, that subsequent manufacturer would be required to certify that the vehicle continues to comply with the requirements of Standard No. 205 with the window film installed. I note that while you state that your window film permits between 88 to 92 percent light transmission through the front windshield, it is the windshield with your product installed that would be required to meet the 70 percent light transmittance requirement.

After a vehicle is first sold to a consumer, modifications to the vehicle are affected by 108(a)(2)(A) of the Safety Act (15 U.S.C. 1397(a)(2)(A)). That section prohibits any manufacturer, distributor, dealer, or motor vehicle repair from knowingly "rendering inoperative" any device or element of design installed in a vehicle in compliance with any applicable safety standard. This provision means that no manufacturer, dealer, distributor, or repair business could install window tinting film if the addition of the tinting film to the glazing would result in a light transmittance of less than 70 percent, or otherwise cause the vehicle to no longer comply with the applicable requirements of Standard No. 205. Violations of this "render inoperative" prohibition can result in Federal civil penalties to the manufacturer, dealer, distributor, or repair business of up to $1,000 for each noncomplying installation.

Section 108(a)(2)(A) of the Safety Act does not affect vehicle owners. Hence, vehicle owners themselves may install tinting film or any other product on the glazing of their vehicle, regardless of whether the installation causes the vehicle to no longer comply with Standard No. 205. Individual States have the authority to regulate the operational use of vehicles by their owners, and, therefore, have the authority to regulate or preclude individual owner modifications to the glazing of their vehicles. If you are interested in further information on the provisions on the provisions of State laws, you may wish to contact the American Association of Motor Vehicle Administrators, 4600 Wilson Boulevard, Arlington, VA 22203.

In addition, under the Safety Act, the UV Heat Shield would be considered an item of motor vehicle equipment. Your company, as a manufacturer of motor vehicle equipment, would be subject to the requirements in 151-159 of the Safety Act concerning the recall and remedy of products with safety related defects. In the event that NHTSA or the product's manufacturer determines that a product that is an item of motor vehicle equipment contains a safety-related defect, the manufacturer is responsible for notifying purchasers of the defective equipment and remedying the problem free of charge.

I have also enclosed a general information sheet for new manufacturers which summarizes NHTSA's regulations and explains where to obtain copies of Federal motor vehicle safety standards and other regulations.

I hope that you find this information helpful. If you have any other questions, please contact Marvin Shaw of my staff at this address or by phone at (202) 366-2992.

Sincerely,

Paul Jackson Rice Chief Counsel

Enclosures

ref:205 d:10/22/92

ID: 6982

Mr. Brad Beach
389 Terrace Avenue
Suite 204
Virginia Beach, VA 23451

Dear Mr. Beach:

This responds to your letter to Mr. Taylor Vinson of my staff, inquiring about Federal safety standards that apply to objects designed to be attached to the rear and side windows of passenger automobiles. Although you did not specify what this object is, you described the object as being "not transparent," rectangular in shape, with dimensions of 12 inches in width by 18 inches in length. The following discussion explains how our safety standards apply to your product.

Some general background information on the Federal motor vehicle safety laws and regulations may be helpful. Our agency, the National Highway Traffic Safety Administration (NHTSA), is authorized under the National Traffic and Motor Vehicle Safety Act (Safety Act), to issue safety standards applicable to new motor vehicles and items of motor vehicle equipment. NHTSA, however, does not approve motor vehicles or motor vehicle equipment, nor do we endorse any commercial products. Instead, the Safety Act establishes a "self- certification" process under which each manufacturer is responsible for certifying that its products meet all applicable safety standards. The agency periodically tests vehicles and equipment items for compliance with the standards, and also investigates alleged safety-related defects.

The agency has issued two Federal Motor Vehicle Safety Standards that might affect your product. These are Standards No. 205, Glazing Materials, and No. 111, Rearview Mirrors. Standard No. 205 specifies performance and location requirements for glazing used in vehicles. These requirements include specifications for minimum levels of light transmittance (70 percent in areas requisite for driving visibility, which includes all windows in passenger automobiles). Standard No. 111 sets performance requirements for rearview mirrors. The standard provides that each inside rearview mirror must provide a specified field of view to the rear of the vehicle. Manufacturers must certify that their new vehicles complies with the applicable requirements of Standards No. 205 and 111. If, before the vehicle were first purchased by a consumer, a subsequent manufacturer or dealer were to install a device that was not readily removable over the glazing and that impaired the field of view to the rear of the vehicle, that subsequent manufacturer or dealer would be required to certify that the vehicle continues to comply with the requirements of Standards No. 111 and 205 with this additional device installed.

After a vehicle is first sold to a consumer, modifications to a vehicle are affected by section 108(a)(2)(A) of the Safety Act. That section prohibits manufacturers, distributors, dealers, and repair shops from knowingly "rendering inoperative" any device or element of design installed on a vehicle in compliance with our standards. Thus, none of these commercial entities may legally install a sun screen device or other device on a vehicle, if the device would cause the vehicle to no longer comply with the requirements of Standards No. 111 and/or 205.

In addition, any manufacturer of motor vehicle equipment, such as a device that is mounted on the glazing of motor vehicles and that is not readily removable, is responsible for the recall and remedy of all such devices, if it is determined that the device contains a defect related to motor vehicle safety.

You should note that the "render inoperative" prohibition in section 108(a)(2)(A) of the Safety Act does not affect vehicle owners, who may themselves alter their own vehicles as they please, without violating any provision of Federal law. Thus, Federal law would not prohibit you, as an individual vehicle owner, from installing any devices you wish in the windows of your own vehicle, even if such installation causes the vehicle to no longer comply with Standards No. 205, No. 111, or any other of our safety standards. The agency, however, urges vehicle owners not to take actions that would degrade the performance of the safety features designed into their vehicles.

However, you should also note that the individual States have the authority to regulate the operation and use of vehicles by their owners and modifications owners can make to their own vehicles. Each of the States have exercised this authority to establish requirements for vehicles to be registered and operated within their borders. I cannot advise you about the laws established by each of the States. If you wish to learn whether Virginia or any other State prohibits the installation of your device in a vehicle, you may wish to contact the Department of Transportation for those States in which you are interested.

I hope this information is helpful. Please feel free to contact Dorothy Nakama of my staff at this address or by telephone at (202) 366-2992 if you have any further questions or need additional information.

Sincerely,

Paul Jackson Rice Chief Counsel

ref:205#111 d:4/14/92

ID: 2914yy

Mr. Rick Weisbrod
Vice President Marketing
Independent Mobility Systems, Inc.
4100 West Piedras Street
Farmington, New Mexico 87401

Dear Mr. Weisbrod:

This responds to your letter of March 5, 1991 concerning the requirements of Standard No. 301. According to your letter and information provided in a telephone conversation with John Rigby of this office on March 7, 1991, your company uses the Chrysler mini-van as a base vehicle for modification for use by drivers or passengers in wheelchairs. This modification is normally performed before the first sale of the vehicle to a consumer. However, the modification is sometimes performed after sale of the vehicle to a consumer. During the modification, the position of the fuel tank is altered by moving it behind the rear axle, the fuel filler tube is modified to reach the new location, and new structure is added to the rear of the vehicle. To ensure compliance with Standard No. 301, your company had front, rear, and side impact tests performed on a modified vehicle. You believe that this crash testing is appropriate, but have been told by "various entities" that no such testing is required. Below I will explain the requirements applicable (1) when your company modifies a vehicle before the first sale to a consumer and (2) when your company modifies a vehicle after its sale to a consumer.

As you know, a manufacturer of new motor vehicles must certify that its vehicles conform to the requirements of all applicable motor vehicle safety standards. Under the NHTSA regulation on certification (49 CFR Part 567), a person who modifies a vehicle prior to its first sale to a consumer is considered an "alterer," if the modifications involve more than the addition, substitution, or removal of "readily attachable" components. An alterer is required to certify that the vehicle, as altered, conforms to all applicable safety standards (49 CFR 567.7). When your company modifies a vehicle by relocating the fuel tank and making the other changes listed above before first sale to a consumer, it would be considered an alterer. Your company, therefore, would have to certify that every vehicle it alters complies with all applicable safety standards affected by the alteration, including Standard No. 301.

The National Traffic and Motor Vehicle Safety Act (the Safety Act; 15 U.S.C. 1381 et seq.) does not expressly require alterers and manufacturers to conduct testing in accordance with the procedures set forth in the safety standards. Instead, the Safety Act requires alterers and manufacturers to exercise "due care" in certifying that a vehicle complies with all safety standards (15 U.S.C. 1397). It is up to the alterer or manufacturer, in the first instance, to determine how he or she will establish that due care was exercised in making the certification. NHTSA itself must precisely follow the crash test procedures in Standard No. 301 when the agency conducts its compliance testing. Manufacturers or alterers may establish due care by conducting crash testing in accordance with the procedures set forth in Standard No. 301. Alternatively, manufacturers or alterers may use other procedures for assuring themselves that their vehicle complies with Standard No. 301, such as computer simulations or engineering analyses. Of course, the agency recognizes that conducting crash tests in accordance with the procedures in Standard No. 301 may be the simplest and most reliable way for an alterer to assure itself that the altered vehicles comply with the standard.

When your company modifies a vehicle after that vehicle has been sold to a consumer, it would be affected by section 108(a)(2)(A) of the Safety Act (15 U.S.C. 1397(a)(2)(A)). That section provides, in part, that:

No manufacturer, distributor, dealer, or motor vehicle repair business shall knowingly render inoperative, in whole or part, any device or element of design installed on or in a motor vehicle or item of motor vehicle equipment in compliance with an applicable Federal motor vehicle safety standard. . . .

Thus, your company (or any other manufacturer, distributor, dealer, or motor vehicle repair business) making the modifications you described in your letter must ensure that those modifications do not "render inoperative" the compliance of the vehicle with any safety standard, including Standard No. 301. Again, the crash testing described in your letter would be a very effective way of ensuring that the modifications do not "render inoperative" compliance with Standard No. 301.

While your letter only concerned compliance with Standard No. 301, I would note that the modifications you discussed may affect compliance with other safety standards. Other safety standards that could be affected by the modifications include (1) Standard No. 204, Steering Control Rearward Displacement, (2) Standard No. 208, Occupant Crash Protection, (3) Standard No. 212, Windshield Mounting, and (4) Standard No. 219, Windshield Zone Intrusion.

I hope this information is useful to you. I also would like to express my appreciation for your company's interest in and commitment to motor vehicle safety. If you have any further questions, please contact John Rigby of this office at 202-366-2992.

Sincerely,

Paul Jackson Rice Chief Counsel

Ref:301 d:4/l/9l

ID: 1984-2.2

TYPE: INTERPRETATION-NHTSA

DATE: 05/21/84

FROM: AUTHOR UNAVAILABLE; Frank Berndt; NHTSA

TO: Hella North America Inc. -- Walter A. Genthe

TITLE: FMVSS INTERPRETATION

TEXT:

January 23, 1984

Dear Mr. Berndt:

Westfaelische Metall Industrie KG is currently designing headlamps for several automobile manufacturers.

These headlamps are designed to comply with Safety Standards 108 as amended by Docket 81-11 (latest issue: Notice 7).

Preliminary requests by our customers mandate an inclusion of parking/front position lamps and/or turn signal lamps and/or side marker lamps in the overall headlamp design.

A standard U.S. light bulb, meeting FMVSS 108 and/or applicable SAE recommended practices, will be used for these respective functions.

We intend to incorporate these functions into the headlamp compartment, retaining the bulb in question by means of a sealed attachment, similar to the one used in the C6 capsule installation.

No degradation of the system will result, since both functions are contained in one sealed compartment, covered by one common lens. No impairment of the effectiveness of the headlamp function is anticipated, nor will the headlamp impair the function of the parking/position/side marker lamp.

All photometric and environmental specifications for such lamps will be met and no component will be used which is outside the scope of FMVSS 108.

To clarify our intent, a sketch showing the principal design has been enclosed.

We are requesting a statement concerning the agency's opinion in this matter; specifically, as it concerns the legality of the proposed system, whole or in part, and solicit any suggestions as to necessary changes should the system not be in compliance with FMVSS 108, as amended by Docket 81-11.

This matter is of considerable urgency, because of design and manufacturing lead times.

A reply at yyor early convenience coud therefore be appreciated.

Very truly yours,

HELLA NORTH AMERICA INC.

Walter A. Genthe President

WAG/1h

Encls.

cc: Dr. Ernst, K 1 Mr. Westermann, K 1 Mr. Fikus, AF

Insert artwork here.

MAY 21, 1984

Mr. Walter A. Genthe President Hello North America, Inc. P.O. Box 499 Flora, Illinois 62839

Dear Mr. Genthe:

This is in reply to your letter of January 23, 1984, with respect to the inclusion of other lighting functions in a replaceable bulb headlamp compartment. These functions could include parking lamps, turn signal lamps, or side marker lamps. The bulb used would meet Standard No. 108/SAE specifications for the function chosen and they would be incorporated into the compartment bya a "sealed attachment." You represent that there will be no impairment of any function, and that the overall assembly will meet all photometric and environmental specifications. You have asked whether such a combination assembly is permissible under Standard No. 108.

The agency interprets Standard No. 108's specifications for replaceable bulb headlamps as allowing only one bulb in a lamp assembly to be used for headlighting purposes. It is silent as to whether additional bulbs may be used to provide other lighting functions. This means that such a bulb is permitted.

Obviously the inclusion of a second bulb can affect the characteristics of the assembly, whether through heat build up, the introduction of contaminants through the junction of the bulb and assembly, etc. These problems would appear to be minimized under the assumptions set forth in your letter. We believe therefore that, under these conditions, an auxiliary bulb could be included in the headlighting compartment, provided that the assembly meets all applicable requirements of Standard No. 108 for each function. Problems that may develop in service would be subject to the safety related defects authority of the National Traffic and Motor Vehicle Safety Act.

If Hella proceeds with a multi-bulb, design, we would like to request that it share with us the types of tests it will be developing which it deems necessary to insure adequate safety performance, so that our knowledge of state of the art lamp technology may be broadened.

Sincerely,

Frank Berndt Chief Counsel

C6/C6 **INSERT GRAPH**

**INSERT GRAPH**

ID: nht87-1.3

TYPE: INTERPRETATION-NHTSA

DATE: 01/06/87

FROM: AUTHOR UNAVAILABLE; SIGNATURE UNAVAILABLE; NHTSA

TO: Russell Thatcher -- Director, Mobility Assistance Program, Exective Office of Transportation and Construction, Commonwealth of Massachusetts

TITLE: FMVSS INTERPRETATION

TEXT:

Mr. Russell Thatcher Director Mobility Assistance Program Executive Office of Transportation and Construction Commonwealth of Massachusetts 10 Park Plaza, Room 3510 Boston, MA 02116-3969

Thank you for your letter of October 3, 1986, to NHTSA Regional Administrator Jack Connors requesting an interpretation of Standard No. 210, Seat Belt Assembly Anchorages. Your letter was referred to my office for reply.

You explained that you are in the process of buying a number of vans which will be outfitted with Republic Seating Corporation's Model D117 seats. You stated that questions have been raised about whether the safety belt placement on those seats complies with our standard. You enclosed a quarter-scale diagram of the seat in question showing the location of the safety belts and asked our opinion about whether the safety belt placement complies with our standard.

Under the National Traffic and Motor Vehicle Safety Act, which this agency enforces, it is the responsibility of a vehicle manufacturer to certify that its products comply with the requirements of our standards. This agency does not have the authority to approve a manufacturer's design plans. We can offer our opinion, but it is the manufacturer's obligation to ensure that the finished vehicle complies with all of the applicable standards.

The standard which affects the mounting angle for safety belts is Standard No. 210, Seat Belt Assembly Anchorages. The drawing enclosed with your letters shows that the lap safety belt anchorage for this seat is installed on the frame of the seat. S4.3.1 .3 of the standard provides:

In an installation in which the seat belt anchorage is on the seat structure, the line from the seating reference point to the nearest contact point of the belt with the hardware attaching it to the anchorage shall extend forward from that contact point at an angle with the horizontal of not less than 20o and not more than 75o.

According to the drawing enclosed with your letter, the line from the seating reference point to the nearest contact point of the safety belt, on the outboard side of the seat, with the hardware attaching it to the anchorage is 75o. If the outboard porti on of the safety belt is installed in a completed vehicle in the location shown in the drawing would meet the requirement of S4.3.1.3, since its mounting angle is not more than 75o.

We cannot offer a opinion as to whether the inboard portion of the safety belt would comply with S4.3.1.3, since the mounting angle for that portion of the safety belt is not depicted in the drawing. I want to emphasize again, that this letter represents the opinion of the agency based on the facts you have presented. It is a manufacturer's responsibility under the Vehicle Safety Act to certify that its completed vehicle complies with our standard.

If you have any further questions, please let me know.

Sincerely,

Erika Z. Jones Chief Counsel

Mr. Jack Connors, Regional Administrator National Highway Traffic Safety Administration 55 Broadway / Kendall Square Cambridge, Massachusetts 02142

Re: Interpretation of, and Compliance with, Specification 49 CFR Section 571-210 Subsection 4.3.1.3

Dear Mr. Connors:

The State of Massachusetts, acting through the Executive Office of Transportation & Construction, administers the Federal 16(b)(21 and State Mobility Assistance Programs. These programs provide grant subsidies to private and public non profit agencies ac ross the state for the purchase of wheelchair lift equipped vans and minibuses used to transport elderly and disabled persons.

We are currently in the process of purchasing forty three (43) vans from Collins Bus Corporation which will be outfitted with Republic Seating Corporations Model D117 seats. Questions have been raised about the current seat belt placement being utilized by Republic Seating.

We would like to request an opinion from your office on whether or not the design complies with federal standards. Attached is a quarter-scale diagram of the seat showing the location of the seat belts.

Your expeditious handling of the matter would be greatly appreciated. During the last year approximately 100 vehicles across the State have been purchased and are being operated in transportation programs.

Should you require additional information, please contact my Assistant Director Royal Spurlark or myself at 973-?000. should you need to contact Republic Seating for information, you can call Mr. Peter Redding, President of that company at (312) 628-8500 .

Sincerely,

Russell Thatcher Director Mobility Assistance Program

SEE HARD COPY FOR GRAPHIC ILLUSTRATIONS

ID: nht92-9.14

DATE: February 11, 1992

FROM: Lance Watt -- Director of Engineering, The Flxible Corporation

TO: Paul Jackson Rice -- Office of Chief Counsel, NHTSA

TITLE: None

ATTACHMT: Attached to letter dated 4/10/92 from Paul J. Rice to Lance Watt (A39; Std. 108)

TEXT:

The Flxible Corporation is a major domestic manufacturer of city transit buses and requests an interpretation concerning FMVSS 108, "Lamps Reflective Devices, and Associated Equipment," while also referencing FMVSS 121 "Air Brake Systems."

An air brake system is used on our vehicles. As the driver starts to apply the service brake pedal to slow or stop the vehicle, a service brake stop lamp switch is activated. The stop lamp switch is installed to comply with Section S5.1.7 of FMVSS 121, "Air Brake Systems." The stop lamps are in turn activated by the stop lamp switch.

The Flxible Corporation offers optional transmissions which have internal hydraulic retarders for supplemental braking as a means to increase brake lining life. This retardation deceleration would be over and above that obtained by the normal service brake system. In our current design, the transmission retarder is electrically operated during the initial travel of the service brake pedal. As the service brake pedal is further depressed, the service brakes are activated, and this in turn triggers the stop lamp switch which in turn illuminates the stop lamps.

The Flxible Corporation has received requests from customers to activate the transmission retarder when the ACCELERATOR pedal is released. In this scenario, the service BRAKE pedal would not be used to activate the transmission retarder. However, if required, the driver could also depress the brake pedal to in turn activate the service brakes in order to achieve an even higher rate of vehicle deceleration over and above that obtained by the transmission retarder itself.

If the brake pedal were not depressed however, and with the vehicle deceleration caused solely by transmission retardation, the stop lamps would not be illuminated and therefore, following vehicles may be unaware of this sudden reduction in vehicle speed.

Some of our customers have also requested to have the transmission retarder activate the stop lamps to provide following vehicles with a warning that a sudden reduction in vehicle speed was in progress, even though it was caused by the transmission retarder as opposed to a service brake application. Again, this application of the stop lamps would be achieved by release of the accelerator and without depressing the brake pedal, and potentially without any intent to apply the service brakes on the part of the driver.

Section S5.5.4 states: "The stop lamps on each vehicle shall be activated upon application of the service brakes." This is interpreted by Flxible to mean the brake pedal would activate the service brakes which would activate the stop

lamp switch which in turn would activate the stop lights. By virtue of our customer's requests, the stop lamps would already be activated when the driver released the accelerator pedal and without any application of the brake pedal.

Flxible has in the past requested a NHTSA ruling on a further scenario outside of that, but somewhat related to that which is described here-in. Please find attached a copy of that request along with a copy of your response for reference.

Additionally, some of our customers, especially those in locations likely to experience icy or slippery road conditions, request a retarder cut off switch in order to disable the retarder and reduce the possibility of uncontrolled drive axle wheel lock-up. In cases such as this, without a dual system that would then allow stop light switch and stop light activation to be caused by application of the brake pedal as in our standard system today, a stop light activation would occur at the time of accelerator release with minimal if any change in vehicle forward speed, and again, potentially with no intent on the part of the driver to use the service brakes.

Flxible to date has resisted the customer requests as noted, however, these customers, without a specific NHTSA ruling on the request as stated above, threaten to declare Flxible a non responsive bidder on transit bus procurements. The basis of their complaints or requests in this regard stem from the fact that they require operating standardization across their various manufacturer fleets to prevent operator error or confusion.

A ruling is requested on whether a non-compliance with Section S5.5.4 of FMVSS 108 would result, if the stop lamps were activated without depressing the brake pedal as requested by our customers.

Flxible appreciates the opportunity to petition for a ruling in this complex matter so that we may use your response accordingly in responding, to our customer's requests.

Should you desire any further clarification or information on this subject, please feel free to contact the writer at (614) 362-2730.