The Workplace Hazardous Materials Information System (WHMIS) is Canada’s national communication standard for hazardous workplace materials. Its core elements include:
- Hazard identification and classification
- Labelling (Supplier and Workplace Labels)
- Safety Data Sheets (SDSs)
- Worker education and training
Understanding Hazardous Materials
Hazardous products can pose either health or physical hazards. Health hazards affect the body over time or immediately, while physical hazards may cause fire, explosions, or corrosion. WHMIS aims to minimize risk by ensuring all hazards are clearly communicated.
Supplier Labels
Suppliers must label products and provide SDSs. Supplier labels must include:
| Label Element | Description |
|---|---|
| Product Identifier | Matches the name on the container and SDS. |
| Hazard Pictogram | Visual symbol identifying the primary hazard (e.g., flammability, toxicity). Framed in a red diamond (except for the biohazard symbol). |
| Signal Word | “Danger” or “Warning” to indicate severity. |
| Hazard Statements | Standard phrases describing product risks (e.g., Fatal if inhaled). |
| Precautionary Statements | Safe handling, protective equipment, and emergency measures including first aid. |
| Supplier Identifier | Manufacturer or distributor responsible for the product. |
Workplace Labels
Used for:
- Products made or transferred on-site
- Replacing damaged or missing labels
- Language accommodations
Workplace labels must include:
- Product name
- Safe handling instructions
- Statement indicating SDS availability
(Note: Workplace labels do not require pictograms or signal words.)
Safety Data Sheets (SDS)
SDSs provide detailed information about hazardous products. Employers must ensure workers have access to the most current SDSs for each product in use.
Important Facts:
- SDSs must be updated within 90 days of receiving significant new information.
- SDSs are required at the time of every sale or import.
- Workers must know where SDSs are stored and how to access them at any time.
Key SDS Sections (out of 16 total):
- Section 2 – Hazard Identification: What the hazards are
- Section 4 – First-aid Measures: Emergency response steps
- Section 8 – Exposure Controls/Personal Protection: What PPE is required
- Section 11 – Toxicological Information: Health effects
WHMIS Education and Training
WHMIS training is mandatory. Workers must understand:
- How to read labels and SDSs
- The hazards associated with their tasks
- Safe handling, storage, and disposal practices
Training by HR Proactive Inc.
Meet your Canadian WHMIS obligations with flexible, accessible, and affordable online training. Our training program is fully up to date, aligning with both WHMIS and the Globally Harmonized System (GHS), ensuring compliance with federal and provincial regulations.
