All welding jobs, including tig welding, require specialized knowledge. This typically does involve taking a special course or series of courses, usually offered by a trade school. An applicant for a tig welding position will need to have be certified in the codes that the job requires, which is done through a certifying agency.
Some employers will also require applicants to pass a welder qualification test to ensure that they are able to successfully perform the specific duties that the job requires.
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