Interpretation ID: aiam3274
Supervisor
Engineering Services Department
Blue Bird Body Company
P.O. Box 937
Fort Valley
GA 31030;
Dear Mr. Turner: This is in reply to your letter of April 14, 1980, asking for confirmation of your interpretation of Section S4.1.4 of Motor Vehicle Safety Standard No. 108.; This section specifies requirements affecting school bus signal lamp 'when the bus entrance door is opened.' Blue Bird is designing an additional entrance door for its buses and you interpret S4.1.4 as requiring the same operational characteristics for the new door.; We confirm your interpretation that 'entrance door' means any entranc door on the school bus. Obviously the purpose of the requirement is not achieved if it is restricted to the traditional entrance door on the right front side of the bus and excludes any other entrance door.; Thank you for your interest in safety. Sincerely, Frank Berndt, Chief Counsel