Form of draft of proposed provision extending availability of existing appropriation for Office of Administrator of Civil Aeronautics, Department of Commerce. Communication from the President of the United States transmitting the budget for the fiscal year 1946 for development of landing areas for national defense, Office of Administrator of Civil Aeronautics, Department of Commerce, in the form of a draft of a proposed provision extending the availability of the existing appropriation under that head to June 30, 1946.