Interpretation ID: aiam0283

Mr. A. Hammerstein, Robert Bosch GMBH, 7000 Stuttgart- Feuerbach, Postfach 400, Germany; Mr. A. Hammerstein
Robert Bosch GMBH
7000 Stuttgart- Feuerbach
Postfach 400
Germany;

Dear Mr. Hammerstein: This is in reply to your letter of December 23, 1970, to the U. S Department of Transportation concerning the time when stop lamps will be required to meet Class A photometrics.; The conflict between the requirements of paragraphs S4.1.1.6 an S4.1.1.7 has already been called to our attention, and will be clarified in an amendment to Standard No. 108 scheduled to be published in the *Federal Register* in the near future.; It was not intended for the stop lamps to meet the Class A photometri values, nor are they required to, until January 1, 1973.; Sincerely, Roger H. Compton, Director, Office of Operating Systems Motor Vehicle Programs;