Rule lifecycle · RIN:1219-AB36
Lowering Miners' Exposure to Respirable Crystalline Silica and Improving Respiratory Protection; Delay of Effective Date of Conforming Amendments
Department of Labor, Mine Safety and Health Administration — observed across 5 documents over 985 days. Use the source documents below before deciding whether this affects your business.
In plain English
The federal mining safety agency is lowering dust limits from crystalline silica in mines and requiring miners to wear improved respiratory protection. Mine owners need to upgrade dust control systems, breathing equipment, and worker training to comply with the new safety standards.
First seen
Jul 26, 2023
Last seen
Apr 6, 2026
Latest stage
Rule
PRORULE → RULE
985d
Stage timeline
Proposed·Jul 26, 2023
Lowering Miners' Exposure to Respirable Crystalline Silica and Improving Respiratory Protection
#2023-15592
Proposed·Aug 14, 2023
Lowering Miners' Exposure to Respirable Crystalline Silica and Improving Respiratory Protection
#2023-17370
Final·Jun 14, 2024
Lowering Miners' Exposure to Respirable Crystalline Silica and Improving Respiratory Protection; Correction
effective Jun 17, 2024#2024-13151
Final·Jun 24, 2024
Lowering Miners' Exposure to Respirable Crystalline Silica and Improving Respiratory Protection; Correction
effective Jun 24, 2024#2024-13510
Final·Apr 6, 2026
Lowering Miners' Exposure to Respirable Crystalline Silica and Improving Respiratory Protection; Delay of Effective Date of Conforming Amendments
#2026-06584