Interpretation ID: 1982-1.8

TYPE: INTERPRETATION-NHTSA

DATE: 02/02/82

FROM: AUTHOR UNAVAILABLE; F. Berndt; NHTSA

TO: Pennsylvania Department of Transportation

TITLE: FMVSS INTERPRETATION

TEXT: This responds to your letter of November 16, 1981, concerning differences between the Vehicle Equipment Safety Commission (VESC) Regulation on sun screening devices and applicable Federal standards. In addition, you asked about the requirements of several Federal motor vehicle safety standards and how they affect Pennsylvania vehicle inspection standards.

Your first question concerns any differences in light transmittance requirements between the Federal standard and the 70 percent light transmittance requirement set by VESC in its Regulation No. 20, Performance Requirements for Motor Vehicle Sun Screening Devices. We have issued a Federal Motor Vehicle Safety Standard No. 205, Glazing Materials, which specifies performance and location requirements for glazing used in vehicles. The standard sets a minimum light transmittance level of 70 percent for glazing materials used in areas requisite for driving visibility, such as the windshield and front side windows.

As explained in the enclosed letter, the agency does not consider sun screening solar films to be glazing materials themselves and thus they would not have to comply with Standard No. 205. However, as the enclosed letter explains, use of such devices on motor vehicles would be prohibited in certain cases if the vehicle glazing no longer complies with the light transmittance or other requirements of the standard.

You also asked if bumper height is regulated by a Federal standard. The agency has issued, under the authority of the Motor Vehicle Information and Cost Savings Act (15 U.S.C. 1901 et seq.) and the National Traffic and Motor Vehicle Safety Act (15 U.S.C. 1391 et seq.), a Part 581 Bumper Standard (49 CFR Part 581, copy enclosed) that specifies performance requirements for bumper systems. One aspect of performance regulated by the standard is the impact protection provided by the bumper at certain heights.

Section 110 of the Cost Savings Act (15 U.S.C. 1920) provides, in applicable part, that:

No State or political subdivision thereof shall have any authority to establish or enforce with respect to any passenger motor vehicle or passenger motor vehicle equipment offered for sale any bumper standard which is not identical to a Federal bumper standard.

Section 103(d) of the Vehicle Safety Act (15 U.S.C. 1392(d)) provides, in applicable part, that:

Whenever a Federal motor vehicle safety standard established under this title 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.

Therefore, unless the Pennsylvania regulation is identical to the Part 581 Bumper Standard, it is preempted.

Finally, you asked about Federal safety standards regulating the height of the windshield. The agency has not issued any safety standard specifying requirements for the vertical height of the windshield. Therefore, Pennsylvania's inspection standard on vertical windshield height is not preempted.

ENCLS.

COMMONWEALTH OF PENNSYLVANIA DEPARTMENT OF TRANSPORTATION BUREAU OF TRAFFIC SAFETY OPERATIONS

November 16, 1981

Frank Berndt

Dear Mr. Berndt:

The Pennsylvania Department of Transportation is presently in the process of reviewing its current inspection regulations to determine the validity of present equipment requirements or their present exclusion. If you could assist by responding to the two issues which follow, it would be greatly appreciated.

Our first concern is the validity of the VESC regulation regarding motor vehicle sun-screening (VESC Stand 20, approved July 1980), and any distinction from the National level between tinting by the original manufacturer and after market applications. Our specific concern is the 70 percent transmittance level set by VESC. Please refer to the enclosed copy of VESC 20.

The second issue in which we are interested and which, under certain circumstances is controlled by the Federal Motor Vehicle Safety Standards, is bumper and windshield heights on newly manufactured reproductions of old cars. Our present regulations specify a bumper height of 16"-20", and a vertical windshield height of no less than 12". Please see the enclosed information concerning a 1950 Porsche reproduction.

Any information you could supply on these two matters would be very helpful to this Department in determining what standards to set, so as to insure minimum compliance with any Federal requirements. If you have any additional questions, please contact me.

Kathy G. Phillips, Manager Vehicle Safety Division