25 CFR § 216.10 - Inspection: Notice of noncompliance: Revocation.

(a) The mining supervisor and superintendent shall have the right to enter upon the lands under a permit or lease, at any reasonable time, for the purpose of inspection or investigation to determine whether the terms and conditions of the permit or lease and the requirements of the exploration or mining plan have been complied with.

(b) If the mining supervisor determines that an operator has failed to comply with the terms and conditions of a permit or lease, or with the requirements of an exploration or mining plan, or with the provisions of applicable regulations, the superintendent shall serve a notice of noncompliance upon the operator by delivery in person to him or his agent or by certified or registered mail addressed to the operator at his last known address.

(c) A notice of noncompliance shall specify in what respects the operator has failed to comply with the terms and conditions of a permit or lease or the requirements of an exploration or mining plan, or the provisions of applicable regulations, and shall specify the action which must be taken to correct the noncompliance and the time limits within which such action must be taken.

(d) Failure of the operator to take action in accordance with the notice of noncompliance shall be grounds for suspension by the mining supervisor of operations or for the initiation of action for the cancellation of the permit or lease and for forfeiture of the surety bond required under § 216.8.