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Qualifications · Welding

Becoming a CWI

Reviewed August 23, 2026

In learning paths: Your First Welding Cert

Assumes you know: Welder Qualification: How It Actually Works

The Certified Welding Inspector credential moves you from making welds to judging them. It is the most valuable single certification in the welding trade: CWIs sign off structural work, run quality programs, and command salaries and independence most welders never reach with a hood down.

*Learn the Trades is a free study resource. We are not a licensing body, an authorized training provider, or an exam administrator. Reading this page does not award any card, license, or certification. Always verify requirements with the issuing authority linked in the sources.*

What a CWI is

An AWS Certified Welding Inspector is qualified to inspect welds and welding activity against a governing code: verifying procedures, checking welder qualifications, examining joints before, during and after welding, and accepting or rejecting work. On code jobs, structural steel especially, a CWI’s signature is what makes the paperwork real.

The exam

The CWI examination is a three-part event:

  • Part A, Fundamentals. Welding processes, heat and metallurgy, symbols, testing methods, safety.
  • Part B, Practical. The hands-on section: measuring and evaluating weld replicas and specimens with inspection tools against a supplied specification.
  • Part C, Code application. Open-book navigation of a code book you choose when applying, commonly AWS D1.1.

Candidates qualify with a combination of education and documented welding-related experience per AWS QC1, the specification governing the program. Expect the experience documentation to be checked properly.

Keeping it: the 9-year cycle

CWI certification renews on a long cycle with a hard stop every 9 years, satisfied by re-examination, an endorsement exam, or 80 hours of continuing education, per the current AWS recertification rules. Between those events, maintenance requirements keep the credential active. The 9-year options give working inspectors realistic routes; the point is that a CWI is never “done” credentialing.

Three exam boxes, Part A fundamentals, Part B practical and Part C code book, with arrows into a CWI box, noted recertify on a nine year cycle

Three exams in one event; Part B fails the unprepared

Where it bites

  • Part B fails prepared people. The practical section’s measuring discipline and its exam-specific specification book punish anyone who only studied theory. Practice with the actual tool kit.
  • Experience thresholds are enforced. Count your qualifying years honestly against QC1 before paying fees.
  • A CWI without code fluency is a contradiction. If Part C scares you, that is the study plan.

Verified requirements

WhereExpiresRenewalContinuing education
United States (federal)Yes9 years, with renewal applications required at years three and six after the initial activation date80 Professional Development Hours is one of four nine-year recertification routes; the others are retaking Part B Practical, passing an endorsement exam, or achieving Certified Radiographic Interpreter status
United States (federal)YesNot stated on the CAWI page fetched in this run; do not assert a period until confirmed
United States (federal)YesNot stated on the SCWI page fetched in this run; do not assert a period until confirmed

Verified against the issuing authority; see sources below. Always confirm current rules with the authority before acting.