; (2) flight testing and evaluation; or (3) the designation or creation of new units of special use airspace, or the establishment of military flight training routes, over the wilderness areas. (g) Commercial services Commercial services (including authorized outfitting and guide activities) within the wilderness areas may be authorized to the extent necessary for activities that are appropriate for realizing the recreational or other wilderness purposes of the wilderness areas, in accordance with section 4(d)(5) of the Wilderness Act ( 16 U.S.C. 1133(d)(5) ). (h) Land acquisition and incorporation of acquired land and interests (1) Acquisition authority The Secretary may acquire land and interests in land within the boundaries of a wilderness area by donation, purchase from a willing seller, or exchange. (2) Incorporation Any land or interest in land within the boundary of a wilderness area that is acquired by the United States after the date of enactment of this Act shall be added to and administered as part of the wilderness area. (i) Water rights (1) Statutory construction Nothing in this subtitle— (A) shall constitute or be construed to constitute either an express or implied reservation by the United States of any water or water rights with respect to the land designated as wilderness by section 201; (B) shall affect any water rights in the State existing on the date of enactment of this Act, including any water rights held by the United States; (C) shall be construed as establishing a precedent with regard to any future wilderness designations; (D) shall affect the interpretation of, or any designation made pursuant to, any other Act