43 C.F.R. § 3809.332 How long does my notice remain in effect?
Title 43 - Public Lands: Interior
If you filed your complete notice on or after January 20, 2001, it remains in effect for 2 years, unless extended under §3809.333, or unless you notify BLM beforehand that operations have ceased and reclamation is complete. BLM will conduct an inspection to verify whether you have met your obligations, will notify you promptly in writing, and terminate your notice, if appropriate.
Title 43: Public Lands: Interior
PART 3800—MINING CLAIMS UNDER THE GENERAL MINING LAWS
Subpart 3809—Surface Management
Operations Conducted Under Notices
§ 3809.332 How long does my notice remain in effect?