The clock is ticking. OSHA has officially published its final rule updating the Hazard Communication Standard (HCS) to align with the 7th revised edition of the Globally Harmonized System (GHS). If you manage hazardous chemicals, you have until November 2026 to comply.
What is GHS Revision 7?
The Globally Harmonized System of Classification and Labeling of Chemicals (GHS) is an internationally agreed-upon standard managed by the United Nations. OSHA's adoption of Revision 7 brings several critical changes to how chemicals are classified, labeled, and documented on Safety Data Sheets (SDS).
Compliance Tip: Don't wait until 2026. Start requesting updated SDS from your manufacturers now. Many are already rolling out Revision 7 compliant documents.
Key Changes You Need to Know
- New Hazard Classes: Desensitized explosives have been added as a new physical hazard class.
- Updated Precautionary Statements: Several precautionary statements have been revised for clarity and consistency.
- Small Package Labeling: New accommodations for labeling very small containers where full GHS labels won't fit.
- Trade Secrets: Stricter requirements for claiming concentration ranges as trade secrets on an SDS.
The Timeline for Compliance
OSHA has established a phased implementation schedule:
- Chemical Manufacturers (Substances): Must comply by January 19, 2026.
- Chemical Manufacturers (Mixtures): Must comply by July 19, 2027.
- Employers (End Users): Must update alternative workplace labeling, hazard communication programs, and provide additional employee training by November 2026 (or within 6 months of receiving updated SDS for mixtures).
How to Prepare Your Facility
As an employer, your primary responsibility is ensuring your hazard communication program is up to date. This means:
- Audit Your Current Inventory: Know exactly what chemicals you have on site.
- Track Incoming SDS: As manufacturers send updated Revision 7 SDS, you must replace the old versions in your binder immediately.
- Update Secondary Labels: Ensure any secondary containers (spray bottles, transfer jugs) reflect the new hazard classifications.
- Train Employees: If new hazards are identified on the updated SDS, you must train your employees on those specific hazards.
Warning: Managing this transition with a paper binder is a logistical nightmare. Every time a manufacturer updates an SDS, you must print it, find the binder, remove the old sheet, insert the new one, and update the index.