Welding is the one trade on this hub where the certification that matters is tied to the individual person making each weld, not just to the business, and where that individual certification carries a hard expiry date that keeps running whether or not anyone is watching it. A structural weld made by a welder whose ticket lapsed the week before isn’t a paperwork problem to fix later — it’s a weld that may not be code-compliant at all.
Key takeaways
Certification in a welding shop runs on two separate tracks that are easy to conflate. The company itself holds a CSA W47.1 certification, and CWB Group’s own explanation of mandatory certification lists the standards a fabricator or erector needs depending on what they’re building: CSA W47.1 for structural steel, W47.2 for aluminum, W186 for welding reinforcing bar in reinforced concrete, and W55.3 for resistance welding, alongside mandatory certification for bridges, cranes, elevators, hoists, antenna structures, wind turbine towers, mobile homes and concrete structures. Company certification comes in tiers based on engineering oversight: Division 1 requires the company to employ a professional engineer full-time for welding-related activities, while Division 2 only requires one retained on a part-time basis. That company-level certification, however, says nothing about whether the specific person holding the torch that day is individually qualified — that is a separate credential entirely.
Individual welder qualification is the credential that travels with the person, independent of which company they work for on any given day, and it is what makes per-weld traceability meaningful: a fabrication shop should be able to say, for any weld on a job, which welder made it and whether that welder was qualified for that process and position on that date. Without that link, a shop’s paperwork can show a valid company certification and a valid welding procedure specification while the actual weld was made by someone whose personal qualification had already lapsed — a gap none of the company-level documentation would catch on its own.
CWB Group states that most welder qualifications are valid for two years, provided the welder remains continuously employed by a CWB certified or applicant company, and that a welder has a window of 90 days before and 90 days after the expiration date to check-test the qualification — beyond that window, a full qualification test is required. The same page notes a qualification can also be revoked if the welder isn’t engaged in a given process for three months or more, so a welder can lose currency in a specific process even mid-cycle, well before the two-year mark, simply by not using it. A schedule that assigns welders to jobs without checking both the two-year expiry and the three-month process-currency rule can put someone on a structural weld they are no longer qualified to make.
Worked example — an illustrative mid-project ticket expiry
A structural steel fabricator schedules a welder onto a 90-day job. Forty-seven days in, that welder’s individual CWB qualification is due to expire — a date that was set two years earlier and has nothing to do with this particular project’s timeline.
A ticket-tracking tool cross-referencing the job schedule against every assigned welder’s qualification expiry flags this 30 days out, while there is still time to schedule the check-test inside the 90-day grace window rather than after it closes.
The welder check-tests in week five of the job, inside the pre-expiry grace window, and the qualification renews without a lapse — the alternative, discovered only after the expiry date had already passed, would have required pulling the welder off the job for a full requalification test rather than the shorter check-test.
None of that scheduling or flagging is itself a certification decision — CWB Group administers the actual qualification testing and issues the credential; the tool’s job is making sure nobody misses the window.
None of the certification structure above replaces the ordinary construction-industry WSIB obligation covered elsewhere on this hub — a business owning or running construction work must register for WSIB coverage within ten calendar days of hiring its first employee, and hold a clearance number valid for up to 90 days across all its contracts. A welding shop is tracking that labour-side clearance, its own company-level CSA W47.1 certification, and every individual welder’s personal qualification, as three separate things that happen to all need to be current on the same job at the same time.
Qualification is scoped to a process and position, not issued as one blanket credential — CWB Group’s testing covers processes including shielded metal arc welding, flux cored and metal cored arc welding, gas metal arc welding, submerged arc welding, gas tungsten arc welding, and electroslag or electrogas welding, and a welder can be current in one and lapsed in another. A shop that only tracks “is this welder qualified” as a single yes-or-no flag, rather than a qualification matrix by process and position, can put a welder who’s current on shielded metal arc but has drifted past the three-month non-use mark on gas tungsten arc onto exactly the job that needs the process they’ve lost currency in.
The clearest use is exactly the scenario above: matching every welder’s individual qualification — process, position, and expiry date — against the jobs they’re scheduled onto, and flagging an expiry or a three-month process gap before it becomes a compliance problem rather than after. A second use is assembling the traceability record itself once a job is complete: which welder made which weld, under which welding procedure specification, on which date, pulled from daily assignment data rather than reconstructed from memory if a weld is ever questioned later. Neither use tests a weld or certifies a welder — CWB Group’s own qualification testing does that, and a certified welding inspector or engineer still signs off on the work itself.
Related reading: a trade where the licence status varies by province instead of by individual expiry date, a different kind of shop paperwork trail, for cabinetry rather than steel, another trade where a factory order has to match a code requirement, not just a dimension.
No. Company certification under CSA W47.1 (and related standards) certifies the business, with engineering oversight requirements that vary by division. Individual welder qualification certifies the specific person for specific processes and positions, and travels with them between jobs.
Two years, provided the welder remains continuously employed by a CWB certified or applicant company. Not using a specific welding process for three months or more can also cause that qualification to be revoked before the two-year mark.
There is a grace window of 90 days before and 90 days after the expiry date to check-test the qualification. Outside that window, a full requalification test is required.
No. It can track welder qualifications against job schedules and assemble the traceability record of which welder made which weld. A certified welding inspector or engineer verifies the weld itself.
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