Interpretation ID: aiam1395
Project Engineer
Blue Bird Body Company
P.O. Box 937
Fort Valley
GA
31030;
Dear Mr. Milby: This is in reply to your letter of January 15, 1974, asking whether school bus rear lighting system is permissible that activates the back-up lamps and flashes four red stop lamps when the gearshift is in reverse.; The system of supplemental school bus warning lamps you describe is on that is not specified by Standard No. 108. Although S4.6(b) states that 'All . . . lamps [other than those specified in S4.6(a)] shall be steady burning. . . ,' we interpret this requirement as covering only the systems specified by the standard. Therefore there is no Federal prohibition against your installation of such a system. However, the system would be subject to regulation by the individual States, some of which may have restrictions on the use of flashing lights.; Yours truly, Richard B. Dyson, Assistant Chief Counsel