43 CFR § 3809.600 - With what frequency will BLM inspect my operations?
(a) At any time, BLM may inspect your operations, including all structures, equipment, workings, and uses located on the public lands. The inspection may include verification that your operations comply with this subpart. See § 3715.7 of this title for special provisions governing inspection of the inside of structures used solely for residential purposes.
(b) At least 4 times each year, BLM will inspect your operations if you use cyanide or other leachate or where there is significant potential for acid drainage.