Interpretation ID: aiam1365
M.D.
Corner Sterling & Machell Avenues
Dallas
Pennsylvania 18612;
Dear Mr. Jacobs: This is in reply to your letter of November 21, 1973 to 'U.S. Bureau o Safety' expressing your view that 'the automobile industry should ... have some type of clutch to reverse action when the closing motion of the (power) window meets any resistance.'; I enclose a copy of Federal Motor Vehicle Safety Standard No. 11 *Power-operated Window Systems* which has applied to all passenger cars and multipurpose passenger vehicles with power windows manufactured since February 1, 1971. The objective of the standard is to minimize the likelihood of injury or death occurring when a person is caught between a closing window and its frame, channel, or seat. The NHTSA determined that the most cost-effective way to accomplish this objective was by prohibiting operation of power windows when the ignition key is either in the ignition 'off' position or removed. As you will see from the enclosure, consideration was given to mechanisms that would reverse the direction of the window.; We appreciate your interest in motor vehicle safety. Sincerely, Richard B. Dyson, Assistant Chief Counsel