Decide which NDT personnel qualification framework (ASNT SNT-TC-1A, ACCP, or ISO 9712) applies to an NDT technician being placed on a fabrication job

Steps

1. Determine who the customer or governing code requires to make the certification decision: SNT-TC-1A is an employer-based recommended practice where the employer's own written practice qualifies and certifies NDT personnel
2. Determine if the contract instead requires central, third-party certification, in which case ASNT's ACCP program or an ISO 9712-accredited certification body issues the credential directly to the individual, independent of any single employer
3. Check the shop's or contractor's written practice (a mandatory internal document under either scheme) for its minimum education, training-hour, exam, and experience requirements, and confirm the technician meets them
4. If a technician holds an ACCP or ASNT Level II/III central certificate, confirm with the site's NDT Level III whether that credential is accepted as satisfying the employer's written practice, since acceptance is a documented determination, not automatic
5. Do not treat SNT-TC-1A 'certification' as portable between employers by default — under the employer-based model, certification is tied to the certifying employer's program