30 C.F.R. § 41.12 Changes; notification by operator.
Title 30 - Mineral Resources
Within 30 days after the occurrence of any change in the information required by §41.11, the operator of a coal or other mine shall, in writing, notify the appropriate district manager of the Mine Safety and Health Administration in the district in which the mine is located of such change.
Title 30: Mineral Resources
PART 41—NOTIFICATION OF LEGAL IDENTITY
Subpart B—Notification of Legal Identity
§ 41.12 Changes; notification by operator.

