Respirable Crystalline Silica and Respiratory Protection

Open for public comment until Jan. 11, 2027. Comment on Regulations.gov

What it does

This proposed rule clarifies and modifies provisions of the respirable crystalline silica and respiratory protection standards that were established in MSHA's 2024 final rule titled "Lowering Miners' Exposure to Respirable Crystalline Silica and Improving Respiratory Protection." The changes provide clarity and make improvements to the requirements for methods of compliance, exposure monitoring, respiratory protection, medical surveillance, and recordkeeping while maintaining strong protection of miners. The proposal also includes related conforming amendments.

The Mine Safety and Health Administration's summary, as published in the Federal Register.

What it would change

5 parts of Title 30 of the Code of Federal Regulations:

30 CFR 56, 30 CFR 57, 30 CFR 60, 30 CFR 71, 30 CFR 72

Before this

No earlier Federal Register document under regulation identifier 1219-AC22 since Jan. 1, 2025.

What happens next and when

Written Comments. Written comments must be received or postmarked by midnight Eastern Time on January 11, 2027.

The agency's dates, word for word.

Check it yourself

• The document in the Federal Register
• Docket MSHA-2026-0200 on Regulations.gov
• Title 30 on eCFR

The record as published

Source: the Federal Register (public domain). The document in the Federal Register