36 CFR § 13.136
Use and/or occupancy pursuant to a valid existing lease or permit
November 4, 2020
A person who holds a valid lease or permit in effect on December 2, 1980, for a cabin, homesite or similar structure not subject to the provisions of §§13.146-13.149 of this subpart, on Federal lands in a park area, may continue the use authorized by that lease or permit, subject to the conditions in §§13.138-13.142.