To amend the Outer Continental Shelf Lands Act to direct the Secretary of the Interior to cease mineral leasing activity on submerged land of the Outer Continental Shelf that is adjacent to a coastal State that has declared a moratorium on such activity, and for other purposes.

Coastal States Protection Act - Amends the Outer Continental Shelf Lands Act to prohibit the Secretary of the Interior from issuing a lease for mineral exploration, development, or production on submerged lands of the Outer Continental Shelf that are seaward of, or adjacent to, specified lands under a State or Federal lease moratorium.