Home › CFR › Title 30 › Part 4330 CFR Part 43 — Procedures for Processing Hazardous Conditions ComplaintsSubpart A — General§ 43.1— Definitions.§ 43.2— General.§ 43.3— Purpose and scope of this part.Subpart B — Special Inspections§ 43.4— Requirements for giving notice.§ 43.5— Action by the Secretary.§ 43.6— Notice of negative finding.Subpart C — Informal Review§ 43.7— Informal review upon written notice given to an inspector on the mine premises.§ 43.8— Informal review upon issuance of a notice of negative finding.