To permanently prohibit the Secretary of the Interior from preparing for or conducting any activity under the Outer Continental Shelf Lands Act on certain portions of the outer continental shelf off the State of Florida, to prohibit activities other than certain required environmental or oceanographic studies under the Outer Continental Shelf Lands Act within the part of the Eastern Gulf of Mexico Planning Area lying off the State of Florida, and for other purposes.

Prohibits the Secretary of the Interior from preparing for or conducting any activity under the Outer Continental Shelf Lands Act with respect to certain submerged lands off the State of Florida.

Mandates that all leases in such area issued before enactment of this Act be cancelled. Requires the Secretary to report annually to the Congress on the status of such cancellations. Provides for compensation to entitled lessees.

Prohibits any activities other than environmental or oceanographic studies in a certain part of the Eastern Gulf of Mexico Planning Area off the western boundary of Florida.

Directs the Secretary to undertake certain environmental studies.

Authorizes appropriations.