; and (6) the Commandant determines that the project satisfies such additional requirements as may be established by the Commandant. (c) Limitations Reimbursements under subsection (a) may not exceed the following: (1) For a single covered project, $5,000,000. (2) For all covered projects in a single fiscal year, $5,000,000. (d) Expiration The authority granted under this section shall expire on the date that is 4 years after the date of enactment of this section. (e) Covered project defined In this section, the term covered project means a project carried out by a non-Federal entity to construct and establish an aid to navigation that facilitates safe and efficient marine transportation on a Federal navigation project authorized by title I of the Water Resources Development Act of 2007 ( Public Law 110–114 ). 503. Corrections to provisions enacted by Coast Guard Authorization Acts Section 604(b) of the Howard Coble Coast Guard and Maritime Authorization Act of 2014 ( Public Law 113–281 ; 128 Stat. 3061) is amended by inserting and fishery endorsement after endorsement . 504. Ship Shoal Lighthouse transfer: Repeal Effective January 1, 2021, section 27 of the Coast Guard Authorization Act of 1991 ( Public Law 102–241 ; 105 Stat. 2218) is repealed. 505. Coast Guard maritime domain awareness (a) In general The Secretary of the department in which the Coast Guard is operating shall seek to enter into an arrangement with the National Academy of Sciences not later than 60 days after the date of the enactment of this Act under which the Academy shall prepare an assessment of available unmanned, autonomous, or remotely controlled maritime domain awareness technologies for use by the Coast Guard. (b) Assessment The assessment shall— (1) describe the potential limitations of current and emerging unmanned technologies used in the maritime domain for— (A) ocean observation; (B) vessel monitoring and identification; (C) weather observation