On April 15th, according to Reuters, two U.S. government officials stated on Tuesday that the Trump administration will allow the 30-day sanctions waiver targeting Iran's maritime oil to expire later this week. Currently, the U.S. is enforcing a blockade on shipments from Iranian ports. This waiver, issued by the U.S. Department of the Treasury on March 20th, allowed approximately 140 million barrels of oil to enter the global market and alleviated energy supply pressures during the Iran war. U.S. Treasury Secretary Janet Yellen stated last month that the waiver would expire on April 19th. At the time of this announcement, members of both parties in Congress criticized the government for temporarily relaxing sanctions on Iran and Russia amid the ongoing U.S.-Israel conflict with Iran and the Russia-Ukraine conflict. An American official said Washington has multiple tools to target institutions purchasing Iranian oil, including "secondary sanctions." The source added, "Furthermore, with the reinstatement of UN sanctions on Iran and Iran's past attempts to conceal illegal activities through seemingly legitimate transactions, any dealings with Iran could trigger additional sanctions."