; (3) by adding at the end the following: (b) Equivalents The Secretary may accept a substitution for associated equipment performance or other safety standards for a recreational vessel if the substitution provides an equivalent level of safety. . (b) Clerical amendment The analysis for chapter 43 of title 46, United States Code, is amended by striking the item relating to section 4305 and inserting the following: 4305. Exemptions and equivalents. . IV Miscellaneous 401. Coastwise trade (a) In general The Commandant of the Coast Guard shall review the adequacy of and continuing need for provisions in title 46, Code of Federal Regulations, that require a United States vessel documented under chapter 121 of title 46, United States Code, possessing a coastwise endorsement under that chapter, and engaged in coastwise trade to comply with regulations for vessels engaged in an international voyage. (b) Briefing Not later than 180 days after the date of the enactment of this Act, the Commandant of the Coast Guard shall provide to the Committee on Transportation and Infrastructure of the House of Representatives and the Committee on Commerce, Science, and Transportation of the Senate a briefing on the findings of the review required under subsection (a) and a discussion of how existing laws and regulations could be amended to ensure the safety of vessels described in subsection (a) while infringing as little as possible on commerce. 402. Unmanned maritime systems (a) Assessment (1) In general The Commandant of the Coast Guard, acting through the Blue Technology Center of Expertise, shall regularly assess available unmanned maritime systems for potential use to support missions of the Coast Guard. (2) Consultation The Commandant shall make the assessment required under paragraph (1) after consultation with the Department of Defense, other Federal agencies, the academic sector, and developers and manufacturers of unmanned maritime systems. (b) Report (1) In general Not later than one year after the date of the enactment