Lowering Miners' Exposure to Respirable Crystalline Silica and Improving Respiratory Protection; Delay of Effective Date of Conforming Amendments
MSHA is issuing this notification following a judicial stay of the compliance deadlines established in the 2024 final rule titled "Lowering Miners' Exposure to Respirable Crystalline Silica and Improving Respiratory Protection" (2024 Silica Rule). The 2024 Silica Rule made conforming amendments for metal and nonmetal (MNM) standards that are scheduled to take effect on April 8, 2026. Since a judicial stay is in effect, this notification delays the conforming amendments indefinitely, pending judicial review.
What this item does
The short version, using the agency's own summary text.
MSHA is issuing this notification following a judicial stay of the compliance deadlines established in the 2024 final rule titled "Lowering Miners' Exposure to Respirable Crystalline Silica and Improving Respiratory Protection" (2024 Silica Rule). The 2024 Silica Rule made conforming amendments for metal and nonmetal (MNM) standards that are scheduled to take effect on April 8, 2026. Since a judicial stay is in effect, this notification delays the conforming amendments indefinitely, pending judicial review.
Final rule; delay of effective date.
Important dates
The dates that matter most for this item.
Published
April 6, 2026
Starts
April 18, 2024
Who published it
The agencies listed in the official filing.
Federal rulebook sections mentioned
These are the parts of the Code of Federal Regulations cited in the filing.