 In 1933, the office of Technical Assistant of Aviation matters was enlarged into the Aeronautics Division under the Department of Commerce and Industry, the functions of which were embodied in Administrative Order No.309, a joint Bulletin issued by the Department of Public Works and Communications and the Department of Finance.In October 1934, Act 4033 was passed to require a franchise from the Philippine government in order to operate an air service and to regulate foreign aircraft operations.