ASNT… Creating a Safer World! ™

ASNT Standards

Standards and Recommended Practices developed by ASNT define qualification and certification for NDT personnel. Through ASNT committees, we facilitate top NDT experts and business professionals in developing and defining personnel qualifications that support industries and governments' needs worldwide. For more information, visit the Standards Council page.

Revision Notice

Some of our standards have been revised and new editions are available for public review. Learn more about each revision and its timelines.


Current Editions

CP-105 cover

ASNT Standard Topical Outlines for Qualification of Nondestructive Testing Personnel (2020)

New edition under review. 
Learn more at the CP-105 New Edition page.


Outlines the essential knowledge for training and certifying NDT personnel responsible for performing, specifying, reviewing, supervising, and evaluating NDT work.


Request Interpretation (PDF)

CP-106 Cover

Nondestructive Testing – Qualification and Certification of Personnel (2018)

Will be replaced by the ANSI/ASNT CP-9712 (ISO 9712:2021):2023 standard soon.


Provides a US standard that integrates ISO 9712 in accordance with ISO Guide 21 and provides certification requirements for personnel certifying in the ET, MT, PT, RT, UT, and VT test methods.


Request Interpretation (PDF)

CP-189 Cover

ASNT Standard for Qualification and Certification of Nondestructive Testing Personnel (2020)

New edition under review.
Learn more at the CP-189 New Edition page.


Built upon SNT-TC-1A, this offers comprehensive minimum criteria for personnel certification, including requirements for NDT instructors and employer certification of Level I, II, and III personnel. Recommended to use alongside ANSI/ASNT CP-105.


Request Interpretation (PDF)

CP-9712 Cover

ANSI/ASNT CP-9712 (ISO 9712:2021):2023:
Nondestructive Testing for Qualification and Certification of NDT Personnel (2023)

Provides the US with an American National Standard that incorporates the provisions of ISO 9712:2021, ensuring consistency and compatibility in NDT personnel certification standards at the international and national levels.

ILI-PQ Cover

In-line Inspection Personnel Qualification and Certification (2017)

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.


Request Interpretation (PDF)


ASNT Recommended Practice No. SNT-TC-1A (2020)

Guidelines to create in-house NDT certification programs, outlining educational, experience, and training requirements for various methods. Recommended to use alongside ANSI/ASNT CP-105.


Request Interpretation (PDF)