Hazard Communication (HazCom)

Chemical manufacturers and importers must classify hazards and supply labels and safety data sheets. Employers must keep a written program, maintain SDS access and train workers. In warehouses where workers handle only sealed containers, employers must keep labels intact, keep SDSs received and train workers for spills. The 2024 update's deadlines were extended four months: substances by 19 May 2026 for manufacturers and 20 November 2026 for employers, mixtures by November 2027 and May 2028. Penalties follow OSH Act amounts.

HazCom applies to fulfillment centers even if they never open a chemical container. Cleaning supplies, battery charging areas, aerosols, perfumes and other consumer chemicals in storage all bring duties to keep labels on, keep safety data sheets accessible and train staff on spill response. For example, a 3PL storing nail polish and aerosol sunscreen for a beauty client must hold current SDSs for those SKUs and train pickers on what to do if a carton leaks. Employer updates under the 2024 rule are due by 20 November 2026.

• Hazmat StorageStoring hazardous goods to code
• Hazardous Materials ShippinghazmatRegulated shipping of dangerous goods

• Occupational Safety and Health Act of 19701970 · Federal workplace safety law that created OSHA
• OSHA Warehousing National Emphasis Program2023, renewed 2026 · OSHA program targeting warehouses for inspection
• OSHA General Duty Clause1970 · OSHA catch-all duty to prevent recognized hazards

1. OSHA: Hazard Communication osha.gov
2. eCFR: 29 CFR 1910.1200 ecfr.gov