Safety checklist — Hazardous materials (WHMIS)
Handling of chemicals on site. Based on Québec's Construction Safety Code (CSTC) and CNESST standards.
Before work
11 items- ✓
WHMIS 2015 training current for all exposed workersCritical
ℹ️ LSST 62.3 and RIPD (S-2.1, r. 8.1). RSST 62 is asbestos-waste storage — not WHMIS training.
- ✓
Safety Data Sheets (SDS) available and accessible on site
- ✓
Compliant labeling on all containers — GHS pictograms visible
- ✓
PPE selected per product SDS (gloves, glasses, respirator, coverall)
- ✓
Spill kit available near the use area
- ✓
Storage compliant — incompatible products separated (acid vs base, oxidizer vs fuel)
- ✓
Product used in ventilated area — fume hood or local exhaust if needed
- ✓
No decanting into unlabeled container
ℹ️ Exception: immediate use by same worker in same shift
- ✓
No food or drink in the handling zone
- ✓
First aid procedure known — SDS section 4
- ✓
Emergency shower and eyewash accessible if using corrosive products
After work
4 items- ✓
Containers closed and returned to dedicated storage
- ✓
Residues and empty containers disposed per SDS instructions
- ✓
Hands washed thoroughly — no product on skin
- ✓
Spill cleaned properly — absorbent material recovered and disposed
15 verification items — use this checklist on-site with the app
Use on-site — freePDF reports, history and team management in the app
For information only — this is not legal advice. OK Sécurité is an independent company with no affiliation to the CNESST: we are not mandated, endorsed or certified by it. Completing a checklist here does not by itself establish your compliance — your exact obligations depend on your job site and your prevention program. Where there is any discrepancy, the official text published by Légis Québec or the CNESST prevails.
More checklists — Cross-cutting Situations
More safety checklists
Risks and prevention — Hazardous materials (WHMIS)
WHMIS (LSST 62.3 and RIPD S-2.1, r. 8.1) applies when a controlled product is used — not a blanket “every site, always” rule. Every controlled product needs a GHS label, an accessible SDS, and training on the specific hazards.
Common site products include: solvents, adhesives, resins, concrete treatments, paints, and strippers. Storage must respect chemical incompatibilities and ventilation requirements. Transfer containers must be labeled per WHMIS requirements.
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