The Act to Prevent Pollution from Ships (APPS, 33 U.S.C. §§1905-1915) is a United States law that implements the provisions of MARPOL and the annexes to which the United States is a party. The most recent U.S. action concerning MARPOL occurred in April 2006, when the U.S. Senate approved Annex VI, which regulates air pollution (Treaty Doc. 108-7, Exec. Rept. 109-13). Following that approval, in March 2007, the House of Representatives approved legislation to implement the standards in Annex VI (H.R. 802), through regulations to be promulgated by Environmental Protection Agency in consultation with the U.S. Coast Guard.