For inquiries regarding any of our standards and recommended practices, fill out the standards inquiry form and submit it to standards@asnt.org.
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ASNT Standards: Elevating NDT Personnel
Setting global benchmarks for nondestructive testing excellence and professionalism.
At ASNT, we are committed to establishing and upholding the highest standards for the qualification and certification of nondestructive testing (NDT) personnel. Our standards and recommended practices serve as the foundation of excellence, guiding the NDT community toward unmatched expertise and professionalism.
Developed by expert ASNT committees, these standards define the qualifications required for NDT personnel to meet the rigorous demands of industries and governments worldwide. By adhering to these standards, NDT professionals enhance their careers while ensuring the reliability and safety of the industries they serve.
View All ASNT StandardsStandard Oversight Bodies
To learn more about our standards' development and their impact on NDT personnel and industries, explore our Standards Council and ANSI/ISO Technical Advisory Group (TAG).
Current Editions
ANSI/ASNT CP-105:
ASNT Standard Topical Outlines for Qualification of Nondestructive Testing Personnel (2020)
Outlines the essential knowledge for training and certifying NDT personnel responsible for performing, specifying, reviewing, supervising, and evaluating NDT work.
BookANSI/ASNT CP-189: ASNT Standard for Qualification and Certification of Nondestructive Testing Personnel (2024)
This American National Standard builds on ASNT Recommended Practice No. SNT-TC-1A by providing comprehensive minimum requirements for personnel certification. Included are requirements for NDT instructors and employer certification of Level I, Level II, and Level III personnel. It includes a requirement for the ASNT NDT Level III certification of Level III personnel. A few of the changes to this edition include: the requirement that employers assess whether referenced exams meet their requirements; restrictions on the use of eye drops to improve vision; the requirement that proctors administering written examinations are trained; some definitions were clarified; and CR, DR, and CT image interpreter requirements were added. This standard has been approved by the American National Standards Institute (ANSI).
ANSI/ASNT CP-9712:
Nondestructive Testing for Qualification and Certification of NDT Personnel (2023)
CP-9712 outlines the requirements for the qualification and certification of NDT personnel, providing a framework for standardized training, examination, and certification procedures.
ANSI/ASNT ILI-PQ:
In-line Inspection Personnel Qualification and Certification (2023)
Establishes requirements for in-line inspection personnel working with inspection technologies, operations, regulatory requirements, and industry standards for pipeline systems. The employer-based standard includes qualification and certification for Levels I, II, and III.
BookASNT Recommended Practice No. SNT-TC-1A (2024)
Recommended Practice No. SNT-TC-1A: Personnel Qualification and Certification in Nondestructive Testing (2024) provides guidelines for employers to establish in-house certification programs for the qualification and certification of NDT personnel. It provides the educational, experience, and training recommendations for each NDT method. Since 1966, employers have used this industry-valued document as the general framework for their employer-based certification programs. A few of the updates to the 2024 edition include: modified definitions to clarify meanings, restrictions on the use of eye drops to improve vision, the recommendation that employers assess whether referenced exams meet their requirements, the addition of the ASNT 9712 Program, the recommendation that personnel administering written examinations are trained.
