Federal agencies Silica Construction Workplace exposures Respiratory conditions

Silica NPRM published; comment period opens

Combustible dust

Washington – OSHA’s notice of proposed rulemaking for crystalline silica was published in the Federal Register on Sept. 12, officially opening the rule’s public comment period.

Stakeholders have until Dec. 11 to submit written comments on the NPRM, according to the notice. Additionally, stakeholders wishing to participate in public hearings beginning March 4 must submit a notice of intent to appear by Nov. 12.

OSHA called a press conference on Aug. 23 to announce that a proposed rule on silica was forthcoming. The rule proposes to lower the current permissible exposure limit to 50 micrograms of respirable silica per cubic meter of air, and require health monitoring and medical exams.

The rule would affect construction, and maritime and general industries standards.