It's Official: OSHA's Proposed Rule for Silica Published in Federal Register

Published September 18, 2013

​OSHA’s notice of proposed rulemaking for respirable crystalline silica was published in the Sept. 12 issue of the Federal Register, starting a 90-day public comment period. Written comments are due Dec. 11. OSHA plans to hold informal public hearings beginning on March 4.

The proposal includes a new proposed permissible exposure limit (PEL) for respirable crystalline silica: 50 micrograms per cubic meter of air calculated as an eight-hour TWA. In addition, the proposed rule details widely used methods for controlling workers’ exposure to crystalline silica, conducting medical surveillance, and training workers about silica-related hazards. The proposed rulemaking would establish two separate standards: one for general industry and maritime employment, and one for the construction industry.

See the Federal Register notice for further details. For more information about the proposal, visit OSHA’s website.