- Safety and Health Topics
- Silica, Crystalline
Visit OSHA's Final Rule on Respirable Crystalline Silica page for information on the new final rule.
OSHA Standards and Enforcement
The following sections highlight OSHA standards, directives, standard interpretations, and national consensus standards that pertain to occupational exposures to crystalline silica.
General Industry (29 CFR 1910)
Maritime (29 CFR 1915)
Construction Industry (29 CFR 1926)
- 1926.55, Gases, vapors, fumes, dusts, and mists
- Appendix A, Gases, vapors, fumes, dusts, and mists
- 1926.57, Ventilation
- National Emphasis Program – Crystalline Silica. OSHA Directive CPL 03-00-007, (January 24, 2008). Includes an updated list of industries commonly known to have overexposures to silica; detailed information on potential hazards linked to silica and about current research regarding silica exposure hazards; guidance on calculating the Permissible Exposure Limits (PELs) for dust containing respirable crystalline silica in the construction and maritime industries; and guidance on conducting silica-related inspections.