On April 7, 2017, the U.S. Environmental Protection Agency requested that the U.S. Court of Appeals for the District of Columbia Circuit temporarily halt a lawsuit brought by the American Petroleum Institute that challenges EPA’s recent new source performance standards for sources in the oil and gas sector. EPA stated in a filing that it will review the challenged regulation in accordance with President Donald Trump’s March 28, 2017 executive order that directs EPA to review the final rulemaking and, “if appropriate . . . suspend, revise, or rescind” the final rulemaking.