You must allow BLM access at any reasonable time:

(a) To inspect or investigate the mine condition;

(b) To conduct surveys;

(c) To estimate the volume, types, and composition of commodities that you mine or remove;

(d) To examine weight tickets, truck logs, and other records that BLM finds necessary to verify production; or

(e) To determine whether you comply with contract, permit, statutory, or regulatory requirements.

[66 FR 58901, Nov. 23, 2001; 67 FR 68778, Nov. 13, 2002]