Worker Certification Tracking
Working at Heights Renewal in Ontario: The 3-Year Rule
Ontario Working at Heights training is valid for exactly 3 years from the date the course was completed, and renewal means a CPO-approved refresher — roughly a half day — that extends validity another 3 years. There is no grace period: a worker whose WAH lapsed yesterday cannot legally do fall-hazard work today, and the fix is a refresher booking, not paperwork.
When does Working at Heights training actually expire?
Three years from the completion date of the approved program — not from the date printed on a wallet card, and not from when the card was issued or reissued. This distinction fails people constantly: a replacement card printed in 2025 for training completed in 2023 expires in 2026, whatever the card seems to imply.
During manual verification, reissued cards are one of the most common problems we flag: the document is genuine, the worker is confident, and the real completion date — the only date that matters — makes the certificate expire a year earlier than everyone on site believed.
How does the refresher work?
Any CPO-approved provider can deliver the refresher: roughly a half day (about 4 hours, versus the full program’s 8), focused on the practical modules, and it renews validity for another 3 years from the refresher’s completion date. Eligibility requires having completed the full approved program previously.
Book before expiry, not at it. Refresher sessions fill 2–6 weeks out in busy season, and the renewal clock starts at completion — refreshing a month early costs you nothing meaningful, while refreshing a month late costs the worker every day of fall-hazard work in between.
What happens if a worker’s WAH expires mid-project?
They stop doing work at height that day — no grace period, no “finishing the week”. The employer and constructor share the duty here: letting a lapsed worker continue is an offence under the OHSA for both, and inspectors treat expired training as non-compliant regardless of how recently it lapsed.
Practically, a mid-project lapse means re-tasking the worker to ground work while a refresher gets booked — a scheduling nuisance if you saw it coming 90 days ahead, and a crew-planning crisis if you found out at the gate. Note that some providers require the full course rather than the refresher once training has been expired for an extended period, which makes early booking cheaper in every sense.
How should employers track WAH renewals across a crew?
Record the completion date as the source of truth and calculate expiry from it — never transcribe expiry from a card. Alert at 90, 30, and 7 days: 90 to book, 30 to escalate, 7 to re-task if the booking slipped. And verify once, at collection, against the training record rather than the wallet card, so the date you are counting from is real.
For crews of ten or more this is exactly the workload expiry-tracking systems exist to absorb — WAH is usually the certificate that convinces Ontario GCs, because it is the one an inspector always asks about.
Foire aux questions
Generally yes — the refresher remains the renewal path after expiry, though the worker cannot do fall-hazard work in the meantime, and some providers require the full program again after a long lapse. Before expiry is the only version without downtime.
No — Ontario requires a program approved by its Chief Prevention Officer for construction fall-hazard work. Equivalent-sounding fall-protection training from other provinces does not substitute.
About half a day with a CPO-approved provider, renewing validity for 3 years from the refresher completion date. The full initial program runs a full day.
Both the employer and the constructor — ensuring valid training is a duty on each, and Ontario’s OHSA penalty regime applies to both. The worker’s own good faith does not shield anyone.
Ressources connexes
Certificate
Working at Heights (Ontario)
Full requirements, validity, and issuing authority.
Read moreGuide
How to Track Worker Certifications
The tracking system WAH renewals plug into.
Read moreField Notes
Expired But “Looks Valid”
Reissued cards and the completion-date trap.
Read moreGuide
What Non-Compliance Actually Costs
What a lapsed WAH exposes you to.
Read moreProduct
WorkSitePass Plans
90/30/7-day expiry alerts — 14-day free trial, no credit card.
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