Safety checklist — Night work
Lighting, fatigue and reduced visibility. Based on Québec's Construction Safety Code (CSTC) and CNESST standards.
Before work
10 items- ✓
Lighting per CSTC 3.2.4: 50 lux circulation, 250 lux heavy work, 550 lux machine finishing
ℹ️ Not 200 lux / RSST Appendix IV. 800 lux for precision mechanical work.
- ✓
Emergency lighting functional in case of power failure
- ✓
Class 2 or 3 HV clothing if working on or near a road (CSTC 10.4.1)Critical
ℹ️ 10.4.1: class 2 or 3 on/near a road — not class 3 for all night work.
- ✓
Site light signage verified — visible from road
- ✓
Fatigue management plan — rotations and breaks planned
ℹ️ Good practice. The CSTC does not write a “+30% at night” rate.
- ✓
Regular breaks per the fatigue plan
ℹ️ Good practice. The CSTC does not write “15 min / 2 h”.
- ✓
Shadow zones and blind spots eliminated — reposition lighting if needed
- ✓
Noise limited per municipal bylaw — noisy work planned for start of shift
- ✓
Buddy system — no one works alone in an isolated zone
- ✓
Extra caution during equipment manoeuvres — reduced visibility
After work
3 items- ✓
Security lighting maintained until last person leaves
- ✓
Site secured for the night — fences, barricades and signage
- ✓
Next shift informed of work completed and ongoing hazards
13 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 — Night work
Night work on construction sites increases accident risk due to fatigue, reduced visibility, and decreased alertness. Lighting follows CSTC 3.2.4: 50 lux circulation, 250 lux heavy work, 550 lux machine finishing, 800 lux precision — not 100 lux.
CSTC 10.4.1 requires class 2 or 3 HV clothing on or near a road — not class 3 for all night work. Fatigue management includes more frequent breaks, rotation of high-risk tasks, and enhanced supervision. Communications must account for reduced ambient noise (machinery near residential areas).
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