Interpretation ID: aiam0959

Mr. Martin Gal, Vice-President, Pilot, Inc., P. O. Box 40, Battle Creek, MI 49016; Mr. Martin Gal
Vice-President
Pilot
Inc.
P. O. Box 40
Battle Creek
MI 49016;

Dear Mr. Gal: In your letter of December 15, 1972, to the Department, you ask 'Do th regulations require that the brake lite be activated prior to the onset on any brake pressure due to pedal travel . . . can some brake pressure be on before the brake lite lights?'; Paragraph S4.5.4 of Motor Vehicle Safety Standard No. 108 *Lamp Reflective Devices and Associated Equipment* requires that 'the stop lamps shall be activated upon application of the service brake.' The standard does not state a specific time or brake line pressure at which activation shall occur so that some brake pressure is permitted at the activation point.; Yours truly, Richard B. Dyson, Assistant Chief Counsel