The Office of State Planning and Federal Programs shall be the principal staff agency of the executive branch to plan with the other departments of state government, and with other governmental units, for the comprehensive development of the state's human, economic and physical resources and their relevance for programs administered by the state and the governmental structure required to put such programs into effect. The purpose of such planning shall be to insure that the maximum benefit will accrue to the state from the advances, loans, grants and other forms of assistance made available to local governmental units and state departments, agencies and institutions by the federal government, or any agency, or any political subdivision thereof. It shall provide information, assistance and staff support by all appropriate means available. The Office of State Planning and Federal Programs shall perform all duties and exercise all the powers and authority relative to state, regional and local planning, and to the study and review of plans, programs and federal aid applications filed with the federal government vested in the Alabama Development Office prior to May 28, 1980. All the functions, powers, authority and duties relative to carrying on a planning program for the human, economic and physical development of the state and the counties and municipalities thereof, including the preparation of a state master plan as well as the authority to provide an assistance program to regions, counties and municipalities in the preparation of comprehensive physical plans for such regions, counties and municipalities vested by Sections 41-9-181 through 41-9-183, and 41-9-200 through 41-9-204 in the Alabama Development Office and as they relate to federal programs, federal grants or federal assistance, are confirmed, continued, transferred to and shall be vested in the Office of State Planning and Federal Programs. All books, records, supplies, funds, equipment, personnel and assets and property of whatsoever nature, had, exercised, used or employed by the Alabama Development Office in the pursuit of the functions herein delineated are also hereby transferred to the Office of State Planning and Federal Programs.