Rule lifecycle · RIN:1219-AC21
Ventilation Plan Approval Criteria
Department of Labor, Mine Safety and Health Administration — observed across 2 documents over 21 days. Use the source documents below before deciding whether this affects your business.
In plain English
The Mine Safety and Health Administration is setting new standards for what mining companies must include in their ventilation plans and how regulators will check them for worker safety. Mining business owners should now review their current ventilation plans and get ready to update them to meet the new approval standards once the rule takes effect.
First seen
Jul 1, 2025
Last seen
Jul 22, 2025
Latest stage
Proposed Rule
PRORULE → RULE
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Stage timeline
Proposed·Jul 1, 2025
Ventilation Plan Approval Criteria
#2025-12232
Proposed·Jul 22, 2025
Ventilation Plan Approval Criteria
#2025-13750