Interpretation ID: aiam1597
Pan Commercial
108 Grove Street
Worcester
MA.
01605;
Dear Mr. Wuthrich: This is in reply to your letter of August 27, 1974 asking for clarification of the National Traffic and Motor Vehicle Safety Act.; You are correct in your impression that under section 103(d) of the Ac 'no state legislation can be more stringent than the Federal ruling.' Under paragraph S4.1.126 of Standard No. 108, effective October 14, 1974, 'a motor-driven cycle whose speed attainable in 1 mile is 30 mph or less need not be equipped with turn signal lamps.' This means that as of that date, only motor-driven cycles whose maximum speed exceeds 30 mph are required to be manufactured with turn signal lamps. Lower- speed cycles may continue to be provided with them if the manufacturer chooses, but a State cannot require him to do so. This is the result of the preemptive effect of section 103(d).; Yours truly, Richard B. Dyson, Acting Chief Counsel