State RegulationsState HazCom Plans: The 29 OSHA-Approved Plans (and the Public-Sector-Only Trap)
There are 29 OSHA-approved State Plans — 22 full plans (21 states plus Puerto Rico) and 7 public-sector-only plans. Learn which regulate private employers, where federal OSHA still applies, and why Washington's HazCom deadline has already passed while California has not adopted the 2024 rule at all.