Proposed rule · 2025-13750

Ventilation Plan Approval Criteria

The Mine Safety and Health Administration (MSHA) is extending the comment period on the proposed rule titled, "Ventilation Plan Approval Criteria," published in the Federal Register on July 1, 2025. In response to a request for additional time to develop and submit comments on the proposed rule, MSHA is extending the comment period for an additional 30 days--that is, from July 31, 2025, to September 2, 2025.