U.S. Representative Salud Carbajal (D-CA-24) has called on the Department of Homeland Security (DHS) to explain its oversight of Jones Act waivers following reports that foreign-flagged vessels transported more than $40 million in petroleum products between U.S. ports without required disclosures.In an October 16 letter to DHS Secretary Markwayne Mullin, Carbajal, Ranking Member of the House Subcommittee on Coast Guard and Maritime Transportation, questioned whether foreign vessel operators benefiting from the waivers are complying with U.S.