15 C.F.R. § 922.226
(a) A person may conduct an activity prohibited by § 922.223(a)(1) through (4) within the sanctuary if such activity is specifically authorized by a valid Federal, State, or local lease, permit, license, or right of subsistence use or of access that is in existence on the effective date of sanctuary designation, provided that the holder of the lease, permit, license, or right of subsistence use or of access complies with § 922.10 and provided that: