(a) Prior to the granting of any license, permit, or other authorization or permission by any agency or instrumentality of the United States to any person for the transportation of spent nuclear fuel or high-level radioactive waste for interim, long-term, or permanent storage to or for the storage of such fuel or waste on any territory or possession of the United States, the Secretary of the Interior is directed to transmit to the Congress a detailed report on the proposed transportation or storage plan, and no such license, permit, or other authorization or permission may be granted nor may any such transportation or storage occur unless the proposed transportation or storage plan has been specifically authorized by Act of Congress: Provided, That the provisions of this section shall not apply to the cleanup and rehabilitation of Bikini and Enewetak Atolls.

(b) For the purpose of this section the words "territory or possession" include the Trust Territory of the Pacific Islands and any area not within the boundaries of the several States over which the United States claims or exercises sovereignty.