43 C.F.R. § 3809.10 How does BLM classify operations?
Title 43 - Public Lands: Interior
BLM classifies operations as— (a) Casual use, for which an operator need not notify BLM. (You must reclaim any casual-use disturbance that you create. If your operations do not qualify as casual use, you must submit a notice or plan of operations, whichever is applicable. See §§3809.11 and 3809.21.); (b) Notice-level operations, for which an operator must submit a notice (except for certain suction-dredging operations covered by §3809.31(b)); and (c) Plan-level operations, for which an operator must submit a plan of operations and obtain BLM's approval.
Title 43: Public Lands: Interior
PART 3800—MINING CLAIMS UNDER THE GENERAL MINING LAWS
Subpart 3809—Surface Management
General Information
§ 3809.10 How does BLM classify operations?