30 CFR 817.122 : Mineral Resources (§ 1.1 To Parts 1291-1299) — (§ 700.1 To Parts 1291-1299) — Office Of Surface Mining Reclamation And Enforcement, Department Of The Interior (§ 700.1 To Parts 956-999) — Permanent Program Performance Standards (§ 810.1 To § 828.12) — Permanent Program Performance Standards - Underground Mining Activities (§ 817.1 To § 817.200) — Subsidence control: Public notice.

At least 6 months prior to mining, or within that period if approved by the regulatory authority, the underground mine operator shall mail a notification to all owners and occupants of surface property and structures above the underground workings. The notification shall include, at a minimum, identification of specific areas in which mining will take place, dates that specific areas will be undermined, and the location or locations where the operator's subsidence control plan may be examined.