![]() The welder certification according to ISO 9606-1, clause 9 Period of Validity states that the initial certification can be extended by the revalidation of welder qualification. Validity of Welder/ Welding operator Certification as per ISO 9606-1 ![]() ![]() The same rules apply for the validity of tack welder certification and certification for tack welder remains valid as long as his/ her continuity is maintained. So, as per AWS D1.1 the welder certification never expire as long as welder continuity is maintained by the organization & there is no questions on welder’s ability to deposit sound welds. (2) there is some specific reason to question a welder’s or welding operator’s ability. (1) the welder is not engaged in a given process of welding for which the welder or welding operator is qualified for a period exceeding six months, or The welder’s or welding operator’s qualification as specified in this code shall be considered as remaining in effect indefinitely unless:
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