The worker had been on sites across Alberta for three years. His First Aid and CPR card was laminated, slightly worn at the corners, expiry date printed clearly: March 2025.
It was October 2024 when he submitted it. The date was still in the future. The card looked exactly like every other First Aid card the site supervisor had ever seen.
It passed. The worker was cleared.
What the supervisor didn't know: the training provider that issued that card had lost its accreditation in early 2023. The certificate was technically invalid from the moment the accreditation was revoked — regardless of the expiry date printed on it.
The date was fine. The issuer wasn't. Nobody checked the issuer.
The gap between looking valid and being valid
Most certificate checks stop at two questions: Does this look like the right document? Is the date in the future?
Those questions miss a third one entirely: Is the issuing body still an approved provider?
For Working at Heights in Ontario, IHSA maintains a list of approved training providers under the Ministry of Labour's regulation. A certificate from a provider that's been removed from that list is not valid — even if the card itself looks perfect, even if the expiry is years away.
The same logic applies across certificate types. First Aid providers need to meet standards. CSTS 2020 must come from ACSA-recognized trainers. The credential is only as good as the organization that issued it.
Why this slips through
Supervisors aren't trained to audit training providers. They're checking whether a worker has a card, not whether the organization that printed that card is still on a government registry.
That gap is structural. You can't expect a site supervisor to cross-reference issuer registries for every certificate, for every worker, every morning. It's not realistic.
So it doesn't happen. And occasionally, someone works on site with a credential that looks right but isn't.
What real verification checks
When a certificate goes through an actual verification process — not just a visual check — the question expands. Not just "is the date valid?" but "is the issuer on the approved list for this certificate type?" Not just "does this look like the right format?" but "does the format match what this issuing body actually produces?"
It's a different level of scrutiny. It takes more time. It's also the only way to close the gap between looks valid and is valid.
A laminated card is not evidence. A verified status is.
At WorkSitePass, every certificate that goes through our verification queue is checked against the issuing authority — not just the expiry date on the card. It's slower than a visual check. It's also the only check that actually catches this.