1. Short title This Act may be cited as the Custer County Airport Conveyance Act . 2. Definitions In this Act: (1) County The term County means Custer County, South Dakota. (2) Federal land The term Federal land means all right, title, and interest of the United States in and to approximately 65.7 acres of National Forest System land, as generally depicted on the map. (3) Map The term map means the map entitled Custer County Airport Conveyance and dated October 19, 2017. (4) Secretary The term Secretary means the Secretary of Agriculture, acting through the Chief of the Forest Service. 3. Land conveyance (a) In general Subject to the terms and conditions described in subsection (b), if the County submits to the Secretary an offer to acquire the Federal land for the market value, as determined by the appraisal under subsection (c), the Secretary shall convey the Federal land to the County. (b) Terms and conditions The conveyance under subsection (a) shall be— (1) subject to valid existing rights; (2) made by quitclaim deed; and (3) subject to any other terms and conditions as the Secretary considers appropriate to protect the interests of the United States. (c) Appraisal (1) In general Not later than 60 days after the date of enactment of this Act, the Secretary shall complete an appraisal to determine the market value of the Federal land. (2) Standards The appraisal under paragraph (1) shall be conducted in accordance with— (A) the Uniform Appraisal Standards for Federal Land Acquisitions