30 C.F.R. § 50.12 Preservation of evidence.
Title 30 - Mineral Resources
Unless granted permission by a MSHA District Manager Manager, no operator may alter an accident site or an accident related area until completion of all investigations pertaining to the accident except to the extent necessary to rescue or recover an individual, prevent or eliminate an imminent danger, or prevent destruction of mining equipment. [42 FR 65535, Dec. 30, 1977; 43 FR 1617, Jan. 11, 1978, as amended at 69 FR 26499, May 13, 2004]
Title 30: Mineral Resources
PART 50—NOTIFICATION, INVESTIGATION, REPORTS AND RECORDS OF ACCIDENTS, INJURIES, ILLNESSES, EMPLOYMENT, AND COAL PRODUCTION IN MINES
Subpart B—Notification, Investigation, Preservation of Evidence
§ 50.12 Preservation of evidence.

