Designations of National Forest System roads, National Forest System trails, and areas on National Forest System lands pursuant to Sec. 212.51 may be revised as needed to meet changing conditions. Revisions of designations shall be made in accordance with the requirements for public involvement in Sec. 212.52, the requirements for coordination with governmental entities in Sec. 212.53, and the criteria in Sec. 212.55, and shall be reflected on a motor vehicle use map pursuant to Sec. 212.56.