Welding inspector exam: frequently asked questions

Part B uses molded plastic weld replicas, real inspection gauges, and a supplied Book of Specifications. You inspect the replicas against an acceptance criterion, so it tests inspection judgment rather than welding skill. You do not have to buy a third-party replica set to pass, though some candidates practice with one.

Three. Part A is a closed-book fundamentals test, Part B is a hands-on practical using weld replicas and a Book of Specifications, and Part C is an open-book code-application test. You must pass all three, and all three must be attempted before any retake of a failed part.

Nine years, with renewal applications required at year three and year six. At year nine you fully recertify by re-examination, a new endorsement, the Certified Radiographic Interpreter credential, or 80 Professional Development Hours. The renewals are not the same as recertification, and skipping them can lapse the certification early.

No. You can register for the exam and self-study for it without buying the eight-week seminar. The seminar costs roughly 2,245 to 2,510 US dollars and is optional. Whether it is worth it depends on your fundamentals and study discipline, not on any requirement.

It follows your industry: D1.1 for structural steel, D1.5 for bridges, API 1104 for pipelines, and the ASME Section IX plus B31.1 and B31.3 endorsement for power and process piping. If you are starting in general fabrication you may not need one yet. The endorsement recommender maps your industry to the right code.

Plan for at least 1,255 US dollars (member) or 1,520 (non-member) for the exam, plus a possible 125-dollar application fee, a 60-dollar-per-part seat fee, an Authorized Training Facility fee for Part B, and 0 to 2,510 dollars for prep depending on whether you self-study or take the seminar.

The vision requirement gates the Part B visual-inspection practical. It is a hard requirement, not a formality, and it is easy to leave until the last minute. Book the eye exam early and file the signed form. See the Part B practical guide for detail.

The experience must be in a welding-related occupation as AWS defines it and is certified on your application. The common avoidable mistake is booking the exam then finding your documented experience does not add up. Confirm your case against the official application. See the credential ladder guide.

Because AWS does not release the pass rate, treat every specific figure as anecdote rather than data. The honest read is that the exam is demanding but passable, and each part fails people for a different reason. See the how hard is the CWI exam guide for the part-by-part breakdown.

You need at least 72 percent on each part independently, with no averaging, so a fail is always a specific part. The expensive mistakes are ignoring the attempt-all-three rule when you plan and letting the retake window lapse. See the retake guide for the full picture.