(Measure passed Senate, amended) States that the purposes of this Act are to preserve the Chattahoochee River in its natural state, to provide for public access to the river, and to provide outdoor recreation areas and facilities adjacent to such river. Establishes the Chattahoochee River National Urban Park and Recreation Area. Requires the Governor of Georgia, in consultation with the Atlanta Regional Commission and its Advisory Council on Regional Development Planning, to develop a plan for the park. Requires such plan to include: (1) a description of the boundaries; (2) a specific program to be implemented for acquisition and development of such lands; and (3) and identification of State and local units responsible for development of such lands. Requires such plan to be submitted to the Secretary of the Interior for approval or disapproval. Provides that such plan shall be approved if adequate public comment has been allowed, the State and local legislative units involved have the authority to carry out such plan and the executive officers thereof have indicated their intention to carry out such plan. Authorizes grants totalling $12,000,000 to carry out such plan if approved. Authorizes appropriations for such grants and for expenses of preparing the plan required by this Act.