; and (B) to the maximum extent practicable, use the minimum tool or administrative practice necessary to accomplish the reconstruction, realignment, or rerouting with the least amount of adverse impact on wilderness character and resources. (3) Motorized vehicles and machinery In accordance with paragraph (2), the Secretary may use motorized vehicles and machinery to carry out the trail reconstruction, realignment, or rerouting authorized by this subsection. (4) Motorized and mechanized vehicles The Secretary may permit the use of motorized and mechanized vehicles on the existing Pine Mountain Trail in accordance with existing law (including regulations) and this subsection until such date as the potential wilderness area is designated as wilderness in accordance with subsection (h). (e) Withdrawal Subject to valid existing rights, the Federal land in the potential wilderness area is withdrawn from all forms of— (1) entry, appropriation, or disposal under the public land laws; (2) location, entry, and patent under the mining laws