CDC/NIOSH updates OSHA/NIOSH Hazard Alert on silica exposure during countertop manufacturing, finishing, and installation (supersedes 2015-106)

CDC/NIOSH updated the joint OSHA/NIOSH Hazard Alert titled “Worker Exposure to Silica during Countertop Manufacturing, Finishing, and Installation” (DHHS (NIOSH) Publication No. 2026-101; OSHA HA-3768-2026). The updated hazard alert (last reviewed Feb 26, 2026) supersedes NIOSH Publication 2015-106 and provides current guidance intended to help employers and safety teams manage silica exposure risks in countertop fabrication and installation activities (e.g., engineering controls, work practices, respiratory protection and program elements). While not a binding rule, it is authoritative NIOSH guidance often used by EHS programs to benchmark controls and training expectations.