A bill to insure that certain buildings financed with Federal funds utilize the best practicable technology for the conservation and use of energy.

Directs the Administrator of General Services to develop design criteria for new buildings financed with Federal funds providing the best practicable use and conservation of energy. Provides that such criteria shall be incorporated into plans or specifications for new buildings to be under his custody or control.

Directs the Administrator to inventory and examine existing buildings under his custody or control to determine what improvements can be made to insure that these buildings will utilize the best practicable technology for the conservation and use of energy.

Requires the Administrator to make periodic reports to Congress on his activities under this Act. Authorizes specified appropriations to carry out the provisions of this Act.