43 CFR §3598.3
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The operator/lessee shall be considered to have received all notices and orders that are mailed by certified mail and a receipt received by the authorized officer. Verbal orders and notices may be given to officials at the mine but shall be confirmed in writing in accordance with § 3598.2 of this title.