President Donald Trump has issued a 90-day extension of the Jones Act waiver, allowing refiners to ship fuels between U.S. ports with foreign-flagged vessels for longer, despite pressure from the domestic maritime industry. The action, the third such extension of the waiver, is part of an effort to place downward pressure on fuel prices elevated by the war in Iran. Trump first issued the waiver in March, suspending the law that requires all goods transported between U.S. ports be moved by ships that are U.S.-built, flagged, and crewed. The president later extended the waiver, moving the expiration date to Aug. 16. Advertisement