The U.S. Occupational Safety and Health Administration (OSHA) has officially updated its Hazard Communication Standard (HazCom), aligning with the 7th revision of the United Nations’ Globally Harmonized System of Classification and Labelling of Chemicals (GHS). These changes represent one fo the most significant updates to workplace chemical safety protocols in recent years.

Whether you’re a manufacturer, importer, distributor or employer, understanding these updates and the revised compliance timeline is critical for maintaining compliance, protecting workers, and reducing liability.

Extended HazCom Compliance Deadlines

OSHA has announced a four-month extension to each of the upcoming Hazard Communication compliance deadlines. The agency cited the need for additional time to finalize guidance and to allow regulated entities sufficient time to review and implement the new requirements. While these extensions provide additional flexibility, the underlying compliance obligations remain unchanged.

OSHA Updates to the Hazard Communication Standard (1)

Key Updates to the HazCom Standard

Here’s a breakdown of the most impactful changes you need to know:

Enhanced Labels for Small Containers

Labels are now easier to read and more informative, even on small packaging, improving hazard awareness at the point of use.

Clearer Hazard Classification Process

Revisions streamline and clarify classification requirements to improve consistency between labels and SDSs.

Revised Classification Criteria for Certain Hazards

Updated criteria apply to aerosols, desensitized explosives, and flammable gases.

New Hazard Category Added

“Chemicals Under Pressure” has been introduced within the aerosols class to address emerging workplace risks.

Updated Precautionary Statements

Revised guidance improves instructions for safe handling, storage, and disposal.

Better Alignment with Canadian and Federal Regulations

OSHA’s updates further harmonize with other U.S. agencies and Health Canada, supporting cross-border compliance.

Updated Transition Timeline

To support implementation, OSHA has established a phased compliance schedule. All deadlines below reflect OSHA’s most recent four-month extension.

Substances
  • Manufacturers, importers, and distributors: Labels and SDSs must be reviewed and updated by May 19, 2026
  • Employers (workplace labeling, written programs, training): Compliance deadline extended to November 20, 2026
Mixtures
  • Manufacturers, importers, and distributors: Labels and SDSs must be reviewed and updated by November 19, 2027
  • Employers (workplace labeling, written programs, training): Compliance deadline extended to May 19, 2028

Although these dates may appear far off, SDS updates, hazard reclassification, label revisions, and downstream distribution often require significant time and coordination — especially for organizations with large or complex product portfolios.

What This Means For Your Business

For manufacturers and suppliers:

You may need to reclassify products, update SDS authoring to reflect new hazard criteria, revise labels, and reissue documentation to customers and distributors.

For employers:

It’s essential to review your chemical inventory, ensure updated SDSs are received and accessible, and revise HazCom programs and employee training to align with the updated standard.

Final Thoughts

Keeping up with regulatory changes like OSHA’s HazCom updates can be overwhelming, but you don’t have to manage it alone. A Strategic Risk Consultant like Megan Hatch can help. She’ll work directly with our Safety and Loss Control Consultant, Ezra Schlecht, to ensure you stay compliant, minimize risks and maintain a safe, productive work environment tailored to your unique needs.

Megan Hatch, CPCU, CWCA, CRIS

Vice President | Risk Consultant

The information provided in this article is for informational purposes only and should not be considered as legal or insurance advice. Please consult with a qualified professional for guidance tailored to your specific situation.