30 CFR 877.11 : Mineral Resources (§ 1.1 To Parts 1291-1299) — (§ 700.1 To Parts 1291-1299) — Office Of Surface Mining Reclamation And Enforcement, Department Of The Interior (§ 700.1 To Parts 956-999) — Abandoned Mine Land Reclamation (§ 870.1 To § 887.15) — Rights Of Entry (§ 877.1 To § 877.14) — Written consent for entry.

Written consent from the owner of record and lessee, or their authorized agents, is the preferred means for obtaining agreements to enter lands in order to carry out reclamation activities. Nonconsensual entry by exercise of the police power will be undertaken only after reasonable efforts have been made to obtain written consent.