ASNT Seeks Industry Input on SNT-TC-1A
Title image: ASNT Chief Global Strategy Officer Paul Lang addressed a packed room at the follow-up Q&A session on SNT-TC-1A at ASNT 2026 on 13 October, where attendees asked questions and shared feedback on the review of the recommended practice.
For nearly 60 years, ASNT Recommended Practice No. SNT-TC-1A has given employers a trusted way to qualify their NDT technicians. At the 13 October general session at ASNT 2026 in Columbus, Ohio, ASNT Chief Global Strategy Officer Paul Lang and ASNT Board Director and Past President Clyde May asked the next question: How does the industry prove what a technician can do, not just how many hours they’ve logged?
They opened with an example. An employer-certified UT Level II technician may have 1680 hours of training and experience—a verified, auditable figure trusted across the industry. What those hours cannot show is how likely that technician is to find the flaw.
Measuring Hours, Not Ability
The speakers made it clear that SNT-TC-1A is not “wrong.” When it was first published in 1966, inspection performance was difficult to capture and compare, and counting hours was a practical workaround. Today’s tools, including recorded scans from phased array ultrasonic testing (PAUT) and digital radiography, allow performance to be reviewed and compared directly.
Careers have changed, too. Methods have split into many techniques, and technicians change employers more often, making a credential tied to one employer harder to carry. Practical examinations do not require a defined flaw population, difficulty range, or detection threshold, and recertification can rest on continued satisfactory performance rather than a repeat demonstration. Concerns about consistency, oversight, trust, and portability, they said, all trace back to one design choice: that the system measures inputs.
Three Pressures for Change
Why now? Lang and May described three pressures. First, the workforce: more than 39% of certified NDT personnel are over age 55, and only 11% are under 35, so new talent must become competent faster without lowering the bar. Second, technology: NDE 4.0, advanced modalities, automation, and robotics are changing the work. Third, confidence: employers, customers, and regulators increasingly expect traceable evidence of competence.
From Discussion to Review
The conversation is not new. ASNT’s 2022–2026 Strategic Plan prioritized a stronger certification portfolio, and the topic has been discussed at every Annual Conference since 2023 and covered in Materials Evaluation, leading to the August 2026 announcement of a comprehensive SNT-TC-1A review.
Preliminary findings from interviews and an industry survey show that 62% of respondents view the coming changes as a net positive. Only about one in three said that hours strongly predict on-the-job ability. Cost was a common concern, along with implementation and transition.
What Comes Next
The speakers stressed that the project is still in the discovery phase. Industry input and the SNT-TC-1A Committee will shape the final document. There is no predetermined move to third-party certification, and SNT-TC-1A is planned to remain an employer-based program. The review is also separate from the 2028 edition, which is on track for on-time or early release and will carry forward ASNT’s oversight role from the 2024 Addendum.
ASNT will form subject-matter expert groups to review each method and section of SNT-TC-1A, followed by an open industry comment period. Sign-up details and a full timeline will be shared soon.
