Who is legally allowed to perform a PSR in Ontario?
A Professional Engineer licensed in Ontario, working under a firm holding a Certificate of Authorization from PEO. The engineer must have expert knowledge relevant to the specific hazard being reviewed — a structural P.Eng is not automatically qualified to review a light-curtain installation. Ask any firm you're considering to name the engineer who will seal your report before you sign.
We've been running this machine for years. Do we still need a review?
Possibly. The obligation attaches when equipment is newly installed, relocated, or modified in a way that affects a listed circumstance — including guarding that was removed and never reinstated, or a control system that was rebuilt. Legacy equipment that has quietly been modified is the single most common finding we make on a first visit.
How long does a review take?
A single apparatus is typically a half-day on site with a sealed report inside five to seven business days. A full production line or a multi-collector dust system runs longer. Rush turnarounds are available when a start-up date is at risk — tell us the date on the scope call and we'll tell you honestly whether we can hold it.
What happens if the review finds deficiencies?
That's the normal outcome, and it isn't a failure. The report ranks each deficiency by risk with a specific corrective measure. You complete the corrections, we re-verify, and the compliance confirmation is issued. The equipment cannot be operated with workers exposed to the unmitigated hazard until that's resolved.
Do you handle the corrections as well as the review?
We specify them and we can produce the guard and interlock designs. We deliberately don't sell you the hardware or install it — an independent review loses its value the moment the reviewer has a stake in what gets bought.
Do you do combustible dust work outside of a PSR?
Yes. Dust hazard analyses are frequently commissioned on their own, driven by insurance requirements or an incident at a comparable facility. NFPA 652 expects a DHA for any facility handling combustible particulate solids, whether or not a PSR trigger exists.
What does a review cost?
It depends on the number of apparatus, the hazard type and travel. We quote a fixed fee before mobilising, on one of three bases: per apparatus, per line or cell, or a program retainer for multi-site manufacturers. The trigger determination itself — working out whether you need a review at all — is free.