; (B) the public with opportunities for off-road vehicle recreation, including a location for races, competitive events, training and other commercial services that directly support a centralized off-road vehicle recreation area and Town park; and (C) a designated area and facilities that would discourage unauthorized use of off-highway vehicles in areas that have been identified by the Federal Government, the State of California, or the County as containing environmentally sensitive land. (3) Disposal prohibited The land conveyed under subsection (b) may not be disposed of by the Town without the approval of the Secretary. (d) Management plan The Secretary may develop a special management plan for the Apple Valley Off-Highway Vehicle Recreation Area to enhance the safe use of off-highway vehicles for recreational purposes. 3. Conveyance to City of Twentynine Palms, California (a) Conveyance required Not later than 1 year after the date of the enactment of this Act, the Secretary of the Interior shall convey to the city of Twentynine Palms, California, without consideration, all right, title, and interest of the United States in and to the surface estate of the land generally depicted as Proposed Conveyance to Twentynine Palms on the map entitled Proposed Conveyance to Twentynine Palms and dated September 18, 2015. (b) Existing rights and mineral estate The conveyance under this section— (1) is subject to valid existing rights