Ohio manufacturers have until Nov. 20 to meet updated OSHA Hazard Communication Standard requirements, leaving little time to address gaps in workplace chemical safety procedures. Employers must review revised safety data sheets and, where newly identified hazards require changes, update workplace labels, written hazard communication programs and employee training.

The deadline follows a four-month extension granted earlier this year. Manufacturers should confirm they have received updated safety data sheets from suppliers, ensure workplace labels reflect any newly identified hazards and document required employee training. Missing the deadline could put employers out of compliance beginning Nov. 21.

“An overlooked label or outdated training program can quickly become a compliance problem,” said Jacob Sargent, director of public policy services for the Ohio Manufacturers’ Association. “Manufacturers have had additional time to prepare, but that window is closing. The priority now is making sure employees understand the hazards they’re working with and employers have the documentation to back it up.”

Separate requirements for chemical mixtures take effect in 2027 and 2028, but the immediate deadline for substances is Nov. 20. 11/12/2026