The ASNT NDT Level III program provides third-party certification for nondestructive testing (NDT) personnel whose specific jobs require knowledge of the technical principles underlying the nondestructive tests they perform, witness, monitor or evaluate. The program provides a system for ASNT NDT Level III certification in NDT in accordance with Recommended Practice No. SNT-TC-1A.
Certification under this program results in the issuance of an ASNT certificate and wallet card attesting to the fact that the certificate holder has met the published guidelines for the Basic and Method examinations as detailed in Recommended Practice No. SNT-TC-1A.
The ASNT NDT Level III program is the core certification program for ASNT. Inaugurated in early 1977, ASNT NDT Level III certificates are recognized worldwide.
About ASNT NDT Level III Certification Program
- UPDATED REQUIREMENTS Effective 1 March 2020
- Program Information Document (PDF) for the ASNT Level III certification program.
- Recertification Information to renew an existing certification
- ASNT Certificate Holders A searchable database of current certificate holders
Apply for Certification
- Apply for Certification or retake a failed exam. Complete our online application
- Apply for Renewal Complete our online application
Examinations
- Examinations A list of all exams with links to topical outlines and references.
- Exam Preparation Study Materials and Refresher Courses from ASNT
- Refresher Courses ASNT offers Level III courses in five NDT methods and NDT Basic.
- Where to Take the Exams Exam Delivery
Additional Links
- Download a Paper Application (PDF) for new certifications, to add certifications, to retake failed exams, or to recertify by examination.
- Download a Paper Application (PDF) to Renew by Points
- Use of Psychometrics in Exam Development