ID: 86-4.49

TYPE: INTERPRETATION-NHTSA

DATE: 08/18/86

FROM: AUTHOR UNAVAILABLE; Erika Z. Jones; NHTSA

TO: William Shapiro

TITLE: FMVSS INTERPRETATION

TEXT:

William Shapiro, P.E. Manager, Regulatory Affairs Volvo Cars of North America Rockleigh, NJ 07647

Dear Mr. Shapiro:

Thank you for your letter of May 5, 1986, requesting an interpretation of how the requirements of Standard No. 212, Windshield Retention, apply to a passenger car that is equipped with a driver-only air bag system. As explained below, such a vehicle must retain not less than 50 percent of the windshield periphery after being tested in accordance with Standard No. 212.

Standard No. 212 sets different windshield retention requirements for a vehicle depending on whether it is equipped with passive or manual restraints. S5.1 of the standard provides that vehicles equipped with passive restraints must retain not less than 50 percent of the windshield periphery after crash testing. S5.2 of the standard provides that vehicle that are not equipped with passive restraints must retain not less than 75 percent of the windshield periphery.

You noted that S4.1.3.4(b) of Standard No. 208 provides that, for purpose of calculating the number of passive restraint-equipped cars during the phase-in of passive restraints, a car with a driver-only, non-belt passive restraint will be counted as a vehicle complying with the passive restraint requirements of S4.1.2.1(a). Such a driver-only system can have a manual safety belt installed at the right front passenger position. You said that Volvo considers a vehicle with a driver-only, non-belt system to be a passive restraint vehicle and thus subject to the 50 percent windshield retention requirement of S5.1

As discussed in a July 5, 1977, Federal Register notice (42 FR 34288), one of the reasons the agency adopted the 50 percent retention requirement for passive restraint-equipped vehicles has because there could be contact between an air bag system and the windshield. In addition, there could be incidental contact between an air bag-restrained test dummy and the windshield. Because the same air bag-to-windshield and dummy-to-windshield contact is possible in a vehicle equipped with a driver-only air bag system, the agency believes that it is appropriate to apply the 50 percent retention requirement to a driver-only air bag system.

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

Sincerely,

Erika Z. Jones Chief Counsel

May 5, 1986

Ms. Erika Jones Chief Counsel National Highway Traffic Safety Administration 400 Seventh Street, S.W. Washington, D. C. 20590

Re: Request for Interpretation FMVSS #212 Windshield Mounting

Dear Ms. Jones:

FMVSS #212 requires passive restraint equipped vehicles to retain not less than 50% of the portion of the windshield periphery on each side of the vehicle longitudinal centerline and vehicles not equipped with passive restraints to retain not less than 75% of the windshield periphery.

FMVSS #208 Section 4. 1.3.4(b) states, for purposes of calculating the numbers of cars manufactured under Section 4. 1.3. 1 .2, Section 4. 1.3.2.2, or Section 4.1.3.3.2 L; comply with Section 4.1.2.1. (first option - frontal/angular automatic protection system): "Each car whose driver's seating position with comply with the requirements of Section 4.1.2.1(a) by means not including any type or seat belt ad whose front right seating position is equipped with a Type 2 seat belt is counted as a vehicle conforming to Section 4,1.2.1.",

During the period 1987-89MY, NHTSA has classified cars with a non-belt passive restraint on the driver's side and a Type 2 seat belt on the passenger's side as "passive restraint vehicles".

Volvo interprets that the vehicles covered under Section 4.1.3.4(b) are passive restraint vehicles ad the requirements of FMVSS #212 for those vehicles are the ones that apply to passive restraint vehicles, i.e. , minimum 50% windshield periphery retention on each side of the vehicle longitudinal centerline.

We would appreciate your confirmation of that position as soon as possible.

If additional information is required on this matter, don't hesitate to contact me.

Sincerely,

VOLVO CARS OF NORTH AMERICA Product Planning and Development

William Shapiro, P.E. Manager, Regulatory Affairs

ID: 86-5.25

TYPE: INTERPRETATION-NHTSA

DATE: 09/29/86

FROM: AUTHOR UNAVAILABLE; Erika Z. Jones; NHTSA

TO: Mr. Rohit Vaidya

TITLE: FMVSS INTERPRETATION

TEXT: This responds to your April 30, 1986 letter concerning Safety Standard No. 213, Child Restraint Systems, and your planned built-in child seat. You asked for information concerning all safety standards that would be applicable to the seat and concerning a pending petition for amending Standard No. 213 to permit the installation of built-in child seats in new motor vehicles. I regret the delay in our response.

Standard No. 213 is the only standard which this agency has issued concerning child restraint systems. It was drafted at a time when add-on or portable systems were the only type of child restraint systems. Accordingly, the requirements of the standard are oriented toward that type of system. However, the agency has granted a petition to broaden the standard to permit the installation of built-in child restraint systems. We expect to issue a proposal regarding this matter later this year. Copies of the standard and the petition are enclosed.

As a new manufacturer of motor vehicle equipment, you should know that a manufacturer has a variety of responsibilities in addition to certifying compliance with all applicable safety standards. Manufacturers have the responsibility to conduct notification and remedy campaigns for safety-related defects or noncompliances with standards in their products. If a child restraint system fails to comply with Standard No. 213 or contains a safety-related defect, the manufacturer may elect to either (1) repair the child restraint so that the defect or noncompliance is removed; or (2) replace the child restraint with an identical or reasonably equivalent restraint which does not have the defect or noncompliance. Whichever of these options is chosen, the child restraint manufacturer must bear the expense for the remedy.

Installation of your product in a used vehicle would also be affected by the National Traffic and Motor Vehicle Safety Act. Section 108(a)(2)(A) of the Motor Vehicle Safety Act prohibits any manufacturer, distributor, dealer, or motor vehicle repair business from "rendering inoperative" in whole or in part, any device or element of design installed in a motor vehicle in compliance with an applicable safety standard. Such a rendering inoperative could occur, for example, if the installer of a built-in child safety seat removed the original vehicle seat, installed a replacement vehicle seat containing the built-in child safety seat, but did not ensure that the seat belt anchorages for adult seating positions in the replacement rear seat continued to meet the location and strength requirements of Standard No. 210, Seat Belt Assembly Anchorages. A rendering inoperative could also occur if the installer did not ensure that a replacement vehicle seat continued to meet the strength requirements of Standard No. 207, Seating Systems, to minimize the possibility of failure by forces acting on that seat as a result of vehicle impact.

Section 108(a)(2)(A) does not establish any limitations on an individual vehicle owner's ability to alter his or her own vehicle. Under Federal law, individual vehicle owners can themselves install any product they want on their vehicles, regardless of whether that product would render inoperative the compliance of the vehicle's seats or seat belt assembly anchorages with the requirements of Standards Nos. 207 or 210. However, the agency encourages vehicle owners not to install products which could lessen the occupant protection afforded by the original seats or safety belt assembly anchorages and thus adversely affect safety.

For further information concerning these responsibilities, please consult the enclosed information sheet for new manufacturers.

ENCLS(3)

OCC 0617

Erika Jones Chief Counsel National Highway Traffic Safety Administration

April 30, 1986

Dear Madam,

This letter is in reference to the Federal Regulations regarding automobile child safety-seats - the Federal Motor Vehicle Safety Standard # 213.

I am an inventor and I expect to be receiving a Letters Patent from the US Patent & Trademark Office for a child safety seat that is designed to be an integral part of a vehicle. I would be very grateful if you could send me a list of all current applicable test standards for automobile child safety-seats (including FMVSS #213, above).

Furthermore, I understand the above referenced standard #213 is under review because of a petition that has been submitted to your office to broaden the scope of the regulation. I also would like to request: (1) information on the status of this review; and (2) a copy of the petition.

Thank you very much.

Rohit Vaidya

cc: DR. C. CLARK, NHTSA MR. W. FONTAINE

ID: 86-5.37

TYPE: INTERPRETATION-NHTSA

DATE: 10/24/86

FROM: AUTHOR UNAVAILABLE; Erika Z. Jones; NHTSA

TO: Mr. Heinz Huentemann

TITLE: FMVSS INTERPRETATION

TEXT:

Mr. Heinz Huentemann Vice-President Spartan Transit Supply Corp. 325 Fairlane Drive Spartanburg, SC 29302

Dear Mr. Huentemann:

This responds to your letter dated June 17, 1986, asking how our regulations affect a convex outside mirror manufactured by your company. In your letter, you state that this convex mirror has a reflective surface of 92.5 square inches, and would be used on the curb side of a transit bus. You also state that this convex mirror has a radius of curvature of 94.5 inches. You specifically asked whether this mirror could be used on the curb side of a transit bus.

Standard No. 111, Rearview Mirrors, a copy of which is enclosed, sets different requirements for buses depending on whether the gross vehicle weight rating (GVWR) is above 10,000 pounds. I believe that the GVWR of a transit bus would exceed 10,000 pounds.

Buses with a GVWR of more than 10,000 pounds must meet S7.1, which requires buses, other than school buses, to have outside mirrors of unit magnification, each with not less than 50 square inches of reflective surface, installed with stable supports on both sides of the vehicle. These mirrors must also be located so as to provide the driver a view to the rear along both sides of the vehicle and must be adjustable both in the horizontal and vertical directions to view the rearward scene. Although the surface, due to the 94.5-inch radius of curvature, it is not a unit magnification or plane mirror. Therefore, it does not meet the requirements for rearview mirrors on new buses.

A manufacturer of new transit buses could use your convex mirror on the curb side of the bus in addition to a unit magnification mirror which ? all applicable requirements of Standard No. 111. However, a commercial business could not substitute your mirror for a complying mirror. Section 108(a) (2) (A) of the National Traffic and Motor Vehicle Safety ? prohibits any manufacturer, distributor, or dealer of motor vehicles or motor vehicle equipment, or any motor vehicle repair business from knowingly rendering inoperative any device or element of design installed on a vehicle in compliance with a safety standard. Thus, a manufacturer, distributor, dealer, or repair business could not remove a unit magnification rearview mirror, installed as original equipment in compliance with our standard, and replace that mirror with a convex mirror.

The sample of your rearview mirror, #STS-0-253, is being returned to you under separate cover.

I hope this information is helpful to you.

Sincerely,

Erika Z. Jones Chief Counsel

Legal Council - NHPSA - NHTSA Room 5219 US-Department of Transportation 407th Street SW Washington, D.C. 20590

Gentlemen:

Re: Authorization for use of convex outside mirrors with convexity of approximately 94.5" radius for installation on curb side of 130 Transit Buses for SEPTA, Philadelphia, PA

We are supplying the inside- and outside mirrors for a number of 130 AD8? Transit Buses to be built by Neoplan USA Corporation, Lamar, CO for Southeastern Pennsylvania Transport Authority, Philadelphia, PA.

On the curb side, these buses will be equipped with a mirror 14 x 6.6" having a mirror surface of 92.5 sq. inch. The convexity is abt.94.5" in mirror radius.

With this petition we enclose a sample of this mirror, #STS-0.253, and which we please may ask you to return to us after inspection.

Having contacted by phone the National Highway Safety Administration and the Pennsylvania Department of Transportation Bureau of Traffic Safety Operations, Harrisburg, PA, we have been advised, that in accordance with FMVSS 1011 and 49 CFR Standard 111 a convex mirror on the curb side can have a convexity between 35" minimum to 65" maximum. Since our mirror has convexity of 94.5" radius it is meeting the required standard.

As this matter is of urgency, may we please, ask to have your written authorization at your earliest convenience.

Sincerely, Spartan Transit Supply Corp.

Heinz Huentemann Vice-President

Encl. - 1 Sample mirror - # STS - 0.253

ID: nht95-1.46

TYPE: INTERPRETATION-NHTSA

DATE: February 2, 1995

FROM: Jeffrey D. Shetler -- Manager of Government Relations, Kawasaki Motors Corp., U.S.A.

TO: Office of Chief Counsel -- NHTSA

TITLE: Subject: Motorcycle Turn Signal Pilot Indicator Interpretation of FMVSS 108

ATTACHMT: ATTACHED TO 5/3/95 LETTER FROM JOHN WOMACK TO JEFFREY D. SHETLER (A43; Std. 108)

TEXT: Dear Sir/Madam:

Kawasaki Motors Corp., U.S.A. is hereby requesting an interpretation from NHTSA regarding the applicability to motorcycles of the Turn Signal Pilot Indicator Lamp requirements within Section 5.4.3.3 of SAE J588 NOV84.

When reviewing Table III of FMVSS 108 (Required Motor Vehicle Lighting Equipment) and its applicability to motorcycle turn signal lamps, we are referred to SAE J588, November 1984. SAE J588 not only specifies turn signal lamp requirements but also speci fies other related requirements such as the need for a turn signal pilot indicator lamp, if the turn signal lamps are not readily visible to the driver.

Section 5.4.3.3 of SAE J588 NOV84 indicates the illuminated turn signal pilot indicator lamp, if located on the outside of the vehicle, should emit a yellow colored light.

All Kawasaki motorcycles designed for use on public roads and sold in the United States are equipped with turn signal lamps meeting the requirements of FMVSS 108. In addition, all Kawasaki motorcycles having turn signal lamps are equipped with an illumi nated pilot indicator lamp (yellow colored).

Table III within FMVSS 123; Motorcycle Controls and Displays, specifies requirements for turn signal lamp identification. However, FMVSS 123 does not specify color requirements for the turn signal pilot indicator lamp.

In future model years, Kawasaki would like to change the current yellow colored light that illuminates our motorcycle turn signal pilot indicator lamps to a green colored light. However, when reviewing SAE J588 NOV84 and FMVSS 123, we cannot determine w ith confidence if it would be allowed.

When reviewing the language within Section 5.4.3.3 of SAE J588 NOV84, it seems evident this section was written with passenger cars in mind and not motorcycles. "5.4.3.3 - If the illuminated indicators are located on the outside of the vehicle, for exam ple on the front fenders, they should emit a yellow colored light and have a minimum projected illuminated area of 60 mm." It is our belief the color and area requirements are specified within this section to insure visibility by the driver because the l ocation of the indicator lamp would be a greater distance away from the drivers eye than a indicator lamp located inside the vehicle on the dash panel.

FMVSS 123 does not need to address distance from the drivers eye, color, or size of the turn signal pilot indicator lamp because the location of the indicator lamp will always be within a reasonable distance from the drivers eye.

Motorcycle turn signal pilot indicator lamps are, in most cases, located within the main instrument panel of the motorcycle with other instrumentation such as speedometer, tachometer, oil pressure gage or warning light, fuel level gage, and transmission neutral indicator. The main instrument panel on motorcycles is usually located between the handlebars and the headlamp. In some cases, motorcycle turn signal pilot indicator lamps are located away from the main instrument panel on the fuel tank, or wit hin a separate panel between the motorcycles fuel tank and handlebars. When considering these locations and their distance from the drivers eye, we believe any pilot lamp light color would be acceptable.

When reviewing current FMVSS requirements (FMVSS 108 / FMVSS 123), we believe we are not limited to using only a yellow color for the lamp of our turn signal pilot indicators because FMVSS 123 does not specify color requirements for turn signal indicator lamps. However, as indicated above, we are not entirely confident our interpretation of the requirements is correct because of the yellow color requirement specified within Section 5.4.3.3 of SAE J588 NOV84. Therefore, we are requesting your assistance in resolving this matter.

Thank you in advance for your timely response to our request.

If further information is required, I can be reached at (714) 770-0400 ext 2456.

ID: nht94-7.32

DATE: March 21, 1994

FROM: John Womack -- Acting Chief Counsel, NHTSA

TO: Lawrence P. White -- Acting Director, Bureau of Motor Vehicles, Dept. of Transportation, Commonwealth of Pennsylvania

TITLE: None

ATTACHMT: Attached to letter dated 12/13/93 from Lawrence P. White to Mary Versie (OCC-9479)

TEXT:

This responds to your letter of December 13, 1993, asking several 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 follows.

1. The effective date - is it the chassis manufacturer's date of completion, the final stage manufacturer's date of completion, or somewhere in between?

The effective date for the November 2 final rule is May 2, 1994. Only vehicles manufactured on or after the effective date of an applicable requirement in a Federal motor vehicle safety standard must comply with that requirement. If a vehicle is manufactured in two or more stages, the final stage manufacturer is required to certify that the vehicle complies with "the standards in effect on the date of manufacture of the incomplete vehicle, the date of final completion, or a date between those two dates." (49 CFR Part S568.6).

2. Based on the formula for emergency exit space, is the area of the front service door to be included? Does this mean on a vehicle of 60 to 77 passengers, the only additional requirements beyond the front and rear doors is a left side exit door?

The November 2 final rule requires additional emergency exit area (AEEA) for some buses. The amount, if any, of AEEA which must be provided is determined by subtracting the area of the front service door and either the area of the rear emergency door or the area of the side emergency door and the rear push-out window, depending on the configuration of the bus (S5.2.3.1). These are the minimum exits required on all buses. If AEEA is required, the first additional exit which must be installed is a left side emergency door (for a bus with a rear emergency door) or a right side emergency door (for a bus with a left side emergency door and a rear push- out window). The number of exits may vary for buses which carry the same number of passengers, because the amount of area credited for each exit is the area of daylight opening, and because different variations of types of exits are possible. However, in the regulatory evaluation for the final rule, the agency estimated that a bus would not be required to have a roof exit (the second type of additional exit required) unless the capacity was greater than 62 (for a bus with a rear emergency door) or 77 (for a bus with a left side emergency door and a rear push-out window).

3. The "clear aisle space" required for exit to the proposed side

emergency door, according to federal specifications, can be met with a flip-up type seat or a clear opening of 12", as measured from the back of the door forward. Are there any specifications, definitions, or descriptions provided as to what would be considered a "flip seat"?

The November 2 final rule allowed a flip-up seat to be adjacent to a side emergency exit door "if the seat bottom pivots and automatically assumes and retains a vertical position when not in use, so that no portion of the seat bottom is within" the required 12 inch aisle to the exit (S5.4.2.1(a)(2)(ii)). The agency did not otherwise define a flip-up seat, nor did it include any performance requirements for these seats.

4. Also, there is concern regarding school buses that are equipped with the "flip seat" by the emergency door opening and the possibility of school children, either intentionally or accidently, unlatching the door latch mechanism. Are the door latch mechanisms to be equipped to help prevent this from occurring?

Standard No. 217 includes requirements for the type of motion and force required to release an emergency exit (S5.3.3). One of these requirements is that the notion to release a door must be upward from inside the bus (upward or pull-type for school buses with a gross vehicle weight rating of 4,536 kilograms or less). This is intended to lessen the chance of a door accidently being opened, without unnecessarily making the exit more complicated to open in an emergency. In addition, warning alarms are required for door and window exits to notify the driver that the exit has been opened.

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.

ID: nht93-4.18

DATE: June 3, 1993

FROM: Charles H. Taylor -- Member of Congress, House of Representatives

TO: Jackie Lowey -- Acting Secretary for Legislative Affairs, Department of Transportation

TITLE: None

ATTACHMT: Attached to letter dated 6-29-93 from John Womack to Charles H. Taylor (A41; Part 571).

TEXT: I am writing to urge the Department of Transportation to reconsider its rules regarding the sale of surplus HMMMV (Humvee) military vehicles to law enforcement organizations.

While there may be good reasons for not allowing surplus Humvees to be sold to the general public, I believe that new regulations regarding Humvees should be drawn up making a distinction between the general public and a law enforcement agency operating Humvees with trained drivers to carry out its official duties.

As you will note from the enclosed correspondence I have received from Charles Long, the Sheriff of Buncombe County, North Carolina, Humvees were invaluable in assisting the Sheriff's Department in their efforts to aid the citizens of Buncombe County during the recent massive snowstorm last March. I am also enclosing the reply of the Department of Defense to Sheriff Long's letter.

Thank you very much for your assistance in this matter.

March 31, 1993

The Honorable Charles Taylor 11th Congressional District 516 Cannon House Office Building Washington, DC 20515

Dear Congressman Taylor:

As I am sure you are no doubt aware, Buncombe County was one of the recent "Blizzard of '93" victims, and according to the local newspaper, we were one of the two hardest hit counties in the Western part of the State. Even with four wheel drive vehicles, travel was near impossible without chains, and for the first time that I can remember, County agencies were closed for three consecutive days.

Our Department was receiving calls for assistance faster than we could answer, and actual response was a nightmare. By the second day of the storm, we requested and received the assistance of the North Carolina National Guard who provided four wheel drive HMMWV vehicles (with drivers). We pride ourselves in being one of the best Sheriff's Departments' in the State, but there is no

question that we would never have been able to have done our jobs during this storm without these vehicles.

After the initial dilemma of the storm concluded, we critiqued our emergency operation plans, and one of the items we felt we should attempt to procure for future emergencies is a HMMMV vehicle, and accordingly, wrote to the State Agency for Surplus inquiring into this process. I have this date received word from State Surplus informing me that the Department of Defense has determined these type vehicles are unsafe for civilian agencies and cannot be surplused to same.

I strongly disagree that these vehicles are "unsafe for civilian agencies", at least, in that term. Frankly, lives were saved and damage to property minimized on account of these vehicles and certainly, had we not utilized them, it would have had serious repercussions and been much more "unsafe". To ban their use by any agency other than the military appears to me to defeat the original purpose of the design of this vehicle. I understand that the operation of this vehicle is unique, but in my Department alone there are at least five (5) individuals who are qualified, and at least two (2) who could become qualified operators of the HMMMV vehicle through their National Guard or Army Reserve Training.

The cost of these vehicles new would be exorbitant to an agency requiring such seldom use; however, I do understand they are available in the private sector under a different package. The only way an agency such as ours could purchase such a vehicle would be through surplus, given the price of the vehicle.

The purpose of this letter is to request your assistance in this matter in addressing this issue with the appropriate persons to either eliminate the ban to "civilian agencies", or, in the alternative, relax the language so as to allow emergency agencies to be allowed privy to this surplus, under the same guidelines as is required by the military.

Your kind assistance would be appreciated.

Sincerely yours,

Charles H. Long

CHL:j

cc: Senator Sam Nunn 301 Dirksen Senate Office Building Washington, DC 20510-1001 ATTN: Charlie Harman Senator J. James Exon 528 Hart Senate Office Building Washington, DC 20510-1001

ID: nht94-3.25

TYPE: INTERPRETATION-NHTSA

DATE: June 8, 1994

FROM: John Womack -- Acting Chief Counsel, NHTSA

TO: Paul L. Anderson -- President, Van-Con Inc.

TITLE: None

ATTACHMT: Attached To Letter Dated 5/19/94 From John Womack To Paul Anderson

TEXT: Dear Mr. Anderson:

This responds to your letter of May 19, 1994, requesting an interpretation of the requirements of S5.5.3(c) of Standard No. 217, Bus Emergency Exits and Window Retention and Release. Section S5.5.3(c) reads:

Each opening for a required emergency exit shall be outlined around its outside perimeter with a minimum 3 centimeters wide retroreflective tape, either red, white or yellow in color . . .

Your letter states that you are unable to continuously outline the perimeter of the rear emergency doors on your school buses due to the proximity of door hinges, tail light lenses, and a rubber gasket between the bottom edge of the door and the bumper. You ask:

Would we be in compliance with Reflective Tape requirements of FMVSS 217 if we put a continuous strip of tape across the top of both Emergency Rear Doors on the roof cap above the doors and down the left and right side of the double door opening with bre aks in the tape for door hinges & tail light lenses. This would outline the Emergency Rear Doors on three sides. No tape would be put across the bottom?

As an alternative, if the above is not acceptable, could we put tape across the bottom on the doors?

As explained below, your planned placement for the top and sides of the door, and your alternative placement for the bottom of the door would be acceptable. In a July 7, 1993 letter to the Blue Bird Body Company, NHTSA stated:

NHTSA interprets S5.5.3(c) to allow interruptions in the tape necessary to avoid and/or accommodate curved surfaces and functional components, such as rivets,

2

rubrails, hinges and handles, provided, however, that the following requisites are met. In the November 2, 1992, final rule, NHTSA indicated that the purpose of the retroreflective tape would be to identify the location of emergency exits to rescuers an d increase the on-the-road conspicuity of the bus. Accordingly, the retroreflective tape may have interruptions if they satisfy both of these purposes. The occasional breaks in the tape you described would not appear to negatively affect a rescuer's ab ility to locate the exits, or reduce the conspicuity of the bus. However, the tape should be applied as near as possible to the exit perimeter . . . When rivets are present, NHTSA will defer to a manufacturer's decision to apply the retroreflective tap e immediately adjacent to the rivets, rather than over the rivets, if the manufacturer decides that this will increase the durability of the tape.

According to this July 1993 letter, interruptions in the retroreflective tape to avoid and/or accommodate hinges (such as the hinge on the side of the rear emergency door) and other functional components are permitted if the interruption does not negativ ely affect a rescuer's ability to locate the exits, or does not reduce the conspicuity of the bus. NHTSA considers tail light lenses to be "functional components" which do not have to be covered by the retroreflective tape. (Indeed, placement of the ta pe on the tail light lense could affect the efficacy of the light.) The interruptions in the tape for these components would not appear to negatively affect a rescuer's ability to locate the exits, or reduce the conspicuity of the bus. Thus, the interru ptions are permitted for the tape along the sides of your door.

With regard to the bottom of your door, based on the pictures provided with your letter, it appears that there is no location available for the placement of retroreflective tape outside of the door's bottom edge. Since not outlining an entire side of an exit might affect a rescuer's ability to locate the exit and would reduce the conspicuity of the exit, the bottom side of the door must be marked with the retroreflective tape. In this situation, NHTSA interprets S5.5.3(c) as allowing placement of the retroreflective tape on the door itself, as near as possible to the lower edge of the door.

3

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

Sincerely,

ID: nht95-2.91

TYPE: INTERPRETATION-NHTSA

DATE: May 19, 1995

FROM: Milford R. Bennett -- Director, Safety Affairs, Safety & Restraints Center, General Motors; Signature by F. Laux

TO: John Womack, Esq. -- Acting Chief Counsel, NHTSA

TITLE: Subject: Request for FMVSS 205 Interpretation; USG 3183

ATTACHMT: ATTACHED TO 9/19/95 LETTER FROM JOHN WOMACK TO MILFORD BENNETT (A43; REDBOOK 2; STD. 205)

TEXT: Dear Mr. Womack:

The purpose of this letter is to request an interpretation of FMVSS 205. Specifically, General Motors seeks the agency's concurrence that a vehicle equipped with a particular rear window sunshade meets the light transmissibility requirements of FMVSS 205 .

General Motors plans to offer a rear window sunshade in a near-future Cadillac model. The sunshade is a screen-like device that significantly reduces the light and heat load entering through the backlite. In its raised position, the sunshade covers app roximately 90% of the backlite area, and the light transmissibility through the combined backlite and sunshade is less than 70%. In its retracted position, the sunshade is stowed in the panel shelf area below the backlite, such that no portion of the bac klite is obscured. A driver operated switch on the instrument panel is used to electrically raise and lower the sunshade.

FMVSS 205 requires a minimum of 70% light transmissibility through glazing that is requisite for driving visibility. The agency has historically interpreted the backlite of passenger cars to be requisite for driving visibility. General Motors seeks the Chief Counsel's interpretation that the proposed sunshade comports with the transmissibility requirements of FMVSS 205. Our reasons for believing that a vehicle equipped with the sunshade would continue to comply with FMVSS 205 are summarized as follow s:

* The rear window sunshade would have no adverse effect on motor vehicle safety. As with conventional windshield sunvisors, drivers can be expected to utilize the sunshade in a way that will maximize, rather than diminish, driving safety and comfort. Wi th the sunshade in its raised position, trailing vehicles and other objects are readily visible through the screen mesh. Driver and passenger side outside rearview mirrors further provide for rearward visibility, comparable to other passenger carrying v ehicles (light trucks, vans, multipurpose passenger vehicles) which are not required by FMVSS 205 to have 70% light transmittance in the backlite area.

* The sunshade is not glazing material, nor is it in contact with glazing material. FMVSS 205 states that: "This standard specifies requirements for glazing materials for use in motor vehicles and motor vehicle equipment."

* The rear window sunshade is fully analogous to conventional windshield sunvisors. In both cases, the driver-selectable device can be positioned in a way that reduces effective transmissibility below 70%, and then easily stowed when not needed to resto re full transmittance.

* There is a well established international precedent for rear window sunshades. European and Japanese regulatory authorities have explicitly recognized and accepted these devices.

General Motors is aware of previous Chief Counsel interpretations stating that the transmissibility requirements of FMVSS 205 must be met with a rear window sunscreen in position. (Reference Ms. Erika Jones letter to Mr. T. E. McConnell dated September 22, 1986, and Ms. Erika Jones letter to Ms. Susan B. House dated December 22, 1985.) We believe there is a critical distinction between the products the agency has previously commented on and the rear window sunshade GM contemplates. Specifically, the e arlier products were apparently tinting materials applied to the backlite, or shade devices that physically contacted the backlite via attaching hardware. By virtue of being in physical contact with the backlite, these earlier sunscreening products coul d be interpreted as being part of the backlite. The rear window sunshade GM plans to install will not be attached to the backlite in either the raised or stowed position, and therefore is clearly not part of the backlite glazing subject to FMVSS 205.

We would appreciate a favorable response at the agency's earliest convenience. In order to accommodate our product plans for the sunshade device, we would like to obtain a response by July, 1995, if possible. If there is any additional information we ca n provide to help expedite the agency's review, please contact Mr. Philip Horton (810-947-1738), Mr. Richard Humphrey of our Washington office (775-5071), or me (810-947-0149).

Thank you.

ID: 9478

Mr. Ted H. Richardson
Fleet Coordinator
Priefert Manufacturing Company, Inc.
Post Office Box 1540
Mt. Pleasant, TX 75456-1540

Dear Mr. Richardson:

This responds to your letter and telephone call to this office asking our opinion regarding Federal Motor Vehicle Safety Standard (FMVSS) No. 120, Tire selection and rims for motor vehicles other than passenger cars. Your letter referenced a telephone conversation with Walter Myers of my staff about the applicability of FMVSS 120 to your product. As Mr. Myers informed you, the answer to your question depends on whether your product, the "Wishbone Carriage" used to position and carry the "Priefert livestock chute" is a "motor vehicle" (i.e., trailer) under our Safety Act and regulations. Based on the information we have, we believe the answer is no.

By way of background information, the National Traffic and Motor Vehicle Safety Act of 1966, 15 U.S.C. 1381, et seq. (Safety Act), authorizes this agency, the National Highway Traffic Safety Administration (NHTSA), to issue safety standards applicable to motor vehicles. Section 102(3) (15 U.S.C. 1391(3)) of the Safety Act defines motor vehicle as:

[A]ny vehicle driven or drawn by mechanical power manufactured primarily for use on the public streets, roads, and highways, except any vehicle operated exclusively on a rail or rails.

NHTSA further defines "trailer" in 49 CFR 571.3 as:

[A] motor vehicle with or without motive power, designed for carrying persons or property and for being drawn by another motor vehicle.

Your letter enclosed a brochure containing pictures and other information relating to the livestock chute (Priefert Squeeze Chute, Model 91). The chute is farm equipment. The upper 2/3 of the chute is constructed of steel bars, while the lower 1/3

is composed of steel panels on both sides that can be lowered or removed. The chute comes with such accessories as head gate, tail gate, and calf table. The chute is positioned on the ground in a barnyard, feed lot, pasture, or field. It is used to channel livestock or, with the head and/or tail gate in place, to immobilize an animal for medicating, branding, tagging, and the like. Your information also describes the carriage that transports the chute. The Wishbone Carriage is a 2-wheeled U-shaped dolly which is designed to be manually attached to special fittings on the chute. With the carriage thus attached, the chute can be towed by vehicle to the next job site. Once at the next job site, the wheeled carriage is detached and the chute is once again placed on the ground for use.

Whether the Wishbone Carriage is a motor vehicle (trailer) depends on its on-road use. This agency has consistently held that vehicles designed and sold solely for off-road use, such as airport runway vehicles and underground mining equipment, are not considered motor vehicles even though they may be operationally capable of highway travel. Vehicles that have an abnormal body configuration that readily distinguishes them from other highway vehicles and that have a maximum speed of 20 miles per hour are not considered motor vehicles. Agricultural equipment, such as tractors, as well as equipment that uses the highways solely to move between job sites and which typically spend extended periods of time at a single job site, are not considered motor vehicles. That is because the use of these vehicles on the public roadways is intermittent and merely incidental to their primary off-road use.

We have determined that the Wishbone Carriage is not a motor vehicle, because it appears it will be primarily used to transport the chute from job site to job site on the farm. Not being a motor vehicle, the Federal motor vehicle safety standards, including FMVSS No. 120, would not apply to your product.

Please note, however, that if the Carriage is regularly used to carry the chute from farm to farm on public roads, or is used more frequently on the public roads than the use we anticipate, the agency may reexamine the determination that the carriage is not a motor vehicle. Also, you may wish to consult your attorney for information on possible operational restrictions on your product, such as State licensing and use laws and product liability.

I hope this information is helpful to you. We have enclosed a copy of FMVSS 120 and provided you our definition of a trailer, as you requested. Should you have any further questions or need additional information, please feel free to contact Mr. Myers at this address or at (202) 366-2992.

Sincerely,

John Womack Acting Chief Counsel

Enclosure ref:120#VSA d:4/12/94

ID: 9479

Lawrence P. White, Acting Director
Bureau of Motor Vehicles
Department of Transportation
Commonwealth of Pennsylvania
Harrisburg, PA 17122

Dear Mr. White:

This responds to your letter of December 13, 1993, asking several 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 follows.

1.The effective date - is it the chassis manufacturer's date of completion, the final stage manufacturer's date of completion, or somewhere in between?

The effective date for the November 2 final rule is May 2, 1994. Only vehicles manufactured on or after the effective date of an applicable requirement in a Federal motor vehicle safety standard must comply with that requirement. If a vehicle is manufactured in two or more stages, the final stage manufacturer is required to certify that the vehicle complies with "the standards in effect on the date of manufacture of the incomplete vehicle, the date of final completion, or a date between those two dates." (49 CFR Part 568.6).

2.Based on the formula for emergency exit space, is the area of the front service door to be included? Does this mean on a vehicle of 60 to 77 passengers, the only additional requirements beyond the front and rear doors is a left side exit door?

The November 2 final rule requires additional emergency exit area (AEEA) for some buses. The amount, if any, of AEEA which must be provided is determined by subtracting the area of the front service door and either the area of the rear emergency door or the area of the side emergency door and the rear push- out window, depending on the configuration of the bus (S5.2.3.1). These are the minimum exits required on all buses. If AEEA is required, the first additional exit which must be installed is a left side emergency door (for a bus with a rear emergency door) or a right side emergency door (for a bus with a left side emergency door and a rear push-out window). The number of exits may vary for buses which carry the same number of passengers, because the amount of area credited for each exit is the area of daylight opening, and because different variations of types of exits are possible. However, in the regulatory evaluation for the final rule, the agency estimated that a bus would not be required to have a roof exit (the second type of additional exit required) unless the capacity was greater than 62 (for a bus with a rear emergency door) or 77 (for a bus with a left side emergency door and a rear push- out window).

3.The "clear aisle space" required for exit to the proposed side emergency door, according to federal specifications, can be met with a flip-up type seat or a clear opening of 12", as measured from the back of the door forward. Are there any specifications, definitions, or descriptions provided as to what would be considered a "flip seat"?

The November 2 final rule allowed a flip-up seat to be adjacent to a side emergency exit door "if the seat bottom pivots and automatically assumes and retains a vertical position when not in use, so that no portion of the seat bottom is within" the required 12 inch aisle to the exit (S5.4.2.1(a)(2)(ii)). The agency did not otherwise define a flip-up seat, nor did it include any performance requirements for these seats.

4.Also, there is concern regarding school buses that are equipped with the "flip seat" by the emergency door opening and the possibility of school children, either intentionally or accidently, unlatching the door latch mechanism. Are the door latch mechanisms to be equipped to help prevent this from occurring?

Standard No. 217 includes requirements for the type of motion and force required to release an emergency exit (S5.3.3). One of these requirements is that the motion to release a door must be upward from inside the bus (upward or pull-type for school buses with a gross vehicle weight rating of 4,536 kilograms or less). This is intended to lessen the chance of a door accidently being opened, without unnecessarily making the exit more complicated to open in an emergency. In addition, warning alarms are required for door and window exits to notify the driver that the exit has been opened.

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

ref:217 d:3/21/94