; 49 U.S.C. 40101 note). . 1112. Air and Marine Operations flight hours (a) Increased flight hours The Secretary, after coordination with the Administrator of the Federal Aviation Administration, shall ensure that not fewer than 95,000 annual flight hours are carried out by Air and Marine Operations of U.S. Customs and Border Protection. (b) Unmanned aerial system The Secretary shall ensure that Air and Marine Operations operate unmanned aerial systems on the southern border of the United States for not less than 24 hours per day for five days per week. (c) Contract air support authorization The Commissioner shall contract for the unfulfilled identified air support mission critical hours, as identified by the Chief of the U.S. Border Patrol. (d) Primary mission The Commissioner shall ensure that— (1) the primary missions for Air and Marine Operations are to directly support U.S. Border Patrol activities along the southern border of the United States and Joint Interagency Task Force South operations in the transit zone; and (2) the Executive Assistant Commissioner of Air and Marine Operations assigns the greatest priority to support missions established by the Commissioner to carry out the requirements under this Act. (e) High-Demand flight hour requirements In accordance with subsection (d), the Commissioner shall ensure that U.S. Border Patrol Sector Chiefs— (1) identify critical flight hour requirements