A Welding Examiner Certificate of Competency authorizes the holder to conduct performance qualification tests and issue performance qualification cards on behalf of a testing organization while employed by that testing organization.

A Welding Examiner in Training Certificate of Competency authorizes the holder to only conduct performance qualification tests on behalf of a testing organization. The Welding Examiner in Training must work under the direction of a Welding Examiner (who is employed by the same testing organization). The Welding Examiner in Training is not permitted to issue performance qualification cards.