LEVEL III Initial Certification Requirements For initial certification, the NNS contracted supplier needs to ensure their NDT sub contracted supplier and their own in- house NDT Level III possess a pass/fail letter for the Basic and Method exams (for each NDT method). ASNT provides a pass/fail letter to the Level III only; ASNT will only accept a letter request from the Level III. If another certifying agency conducts the examinations a pass/fail letter or a grade sheet for each exam needs to be provided to the NDT Level III. The pass/fail letter from ASNT or a qualified NDT test facility shall be provided to the NNS contracted supplier (and NNS upon request).
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