; and (B) in accordance with— (i) the Wilderness Act ( 16 U.S.C. 1131 et seq. ); and (ii) appropriate policies, including policies authorizing the occasional and temporary use of motorized vehicles, if the use, as determined by the Secretary, would promote healthy, viable, and more naturally distributed wildlife populations that would enhance wilderness values with the minimal impact necessary to reasonably accomplish those tasks. (3) Existing activities In accordance with section 4(d)(1) of the Wilderness Act ( 16 U.S.C. 1133(d)(1) ), the State may continue to use aircraft (including helicopters) to survey, capture, transplant, monitor, and provide water for wildlife populations. (4) Wildlife water development projects Subject to subsection (e), the Secretary shall authorize structures and facilities, including existing structures and facilities, for wildlife water development projects, including guzzlers, in the wilderness area if— (A) the structures and facilities would, as determined by the Secretary, enhance wilderness values by promoting healthy, viable, and more naturally distributed wildlife populations