Interpretation ID: 1983-3.36

TYPE: INTERPRETATION-NHTSA

DATE: 12/20/83

FROM: AUTHOR UNAVAILABLE; Frank Berndt; NHTSA

TO: Maryland State Police

TITLE: FMVSS INTERPRETATION

TEXT:

B.E. Diehl, Captain Commander, A.S.E.D. Maryland State Police 6601 Ritchie Highway Glen Burnie, MD 21062

Dear Captain Diehl:

This responds to your letter of November 11, 1983, asking three questions about the use of sun screening devices on vehicle glazing materials. The answers to your questions are as follows:

1. The interpretations of Standard No. 205, Glazing materials, stated in this agency's letters to the State of Hawaii concerning the use of sun screening device on vehicle glazing materials will be uniformly applied by the agency from State-to-State. If you are aware of vehicle manufacturers, distributors, dealers or motor vehicle repair shops that are in violation of those interpretations, please provide that information to our Office of Vehicle Safety Compliance.

2. Section 108(a)(2)(A) of the National Traffic and Motor Vehicle Safety Act prohibits motor vehicle manufacturers, distributors, dealers and motor vehicle repair shops from knowingly rendering inoperative any device or element of design installed in compliance with a Federal motor vehicle safety standard. Standard No. 205 sets performance requirements for all glazing materials used in motor vehicles. Those performance requirements may vary depending on where in the vehicle the glazing is used. For example, only glazing materials used at levels requisite for driving visibility must comply with the luminous transmittance requirements.

3. Standard No. 205 specifies abrasion resistance requirements for glazing materials. Therefore, the use of solar screening materials, which do not meet the abrasion requirements of the standard, would render inoperative the glazing materials compliance with the standard.

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

Sincerely,

Frank Berndt Chief Counsel