A bill to provide for a study by the Secretary of Commerce of the need for regulation of weather modification activities, the status of current technologies, the extent of coordination and the appropriate responsibility for operations in the field of weather modification.

Makes it the policy of the United States to develop and implement a coordinated and comprehensive national program of weather modification for the benefit of mankind. Calls for the establishment of a detailed weather modification policy for the United States.

Establishes, within the Department of Commerce, a National Weather Modification Commission to study the research needs of weather modification to establish areas in which more research could be expected to yield the greatest return in terms of operationally useful weather modification technology.

Requires a preliminary report by the Commission to the President and to the Congress within one year after its organization. Sets forth the contents of such preliminary report.

Enumerates the powers of the Commission under this Act.

Defines terms used in this Act.

Authorizes the appropriation of up to $750,000 to carry out the provisions of this Act.