Emergency Rulemaking to Prohibit the Fabrication of Engineered Stone Countertops Containing More than One Percent Crystalline SilicaWritten Comments Received as of October 30, 2026

Title 8 Industrial Relations
General Industry Safety Orders
Section 5204 Occupational Exposures to Respirable Crystalline Silica.

  1. World-Wide Agglomerated Stone Manufacturers Association
  2. Bricklayers and Allied Craftworkers Locals 3 and 4 of California
  3. Beacon Hill Medical Consulting
  4. California Building Industry Association
  5. California Medical Association
  6. David Harrington
  7. David L. MacIntosh
  8. Fox Marble
  9. Lawrence P. Halprin
  10. Health Officers Association of California
  11. LX Hausys America
  12. Mike Neisen
  13. Martin, Magnuson, McCarthy & Kenney Attorneys at Law
  14. Natural Stone Institute
  15. California Surfaces
  16. Tile Council of North America
  17. Western Occupational and Environmental Medical Association

November 2026