; or (2) the Special Management Area. IV General provisions 401. Management of covered land (a) Motorized vehicles (1) In general Except in cases in which motorized vehicles are needed for administrative purposes or to respond to an emergency, the use of motorized vehicles in the covered land shall be permitted only on designated routes. (2) Road construction Except as necessary for administrative purposes, protection of public health and safety, or providing reasonable access to private property, the Secretary shall not construct any permanent or temporary road within the covered land after the date of enactment of this Act. (b) Withdrawals Subject to valid existing rights, all covered land, including any land or interest in land that is acquired by the United States within the covered land after the date of enactment of this Act, is withdrawn from— (1) entry, appropriation or disposal under the public land laws; (2) location, entry, and patent under the mining laws