US SB549

Extends the excise tax exemption on alternative motorboat fuels to vessels operating exclusively between Atlantic or Pacific ports of the United States, including U.S. territories and possessions

Amends Section 4041(g) of the Internal Revenue Code of 1986 to expand existing fuel tax exemptions for qualifying maritime vessels

Applies to vessels described in Section 4042(c)(1) that are actually engaged in single-coast trade routes

Takes effect for fuel sold or used after December 31, 2025

Introduced February 12, 2025 by Senators Murkowski, Hirono, and Sullivan; referred to the Committee on Finance