ASNT… Creating a Safer World! ™

Discover NDT

Nondestructive testing (NDT) is the inspection of an object for cracks, corrosion, discontinuities, or structural fatigue without cutting or breaking the object open. Click below to discover the methods that make up NDT, the industries it is used in, possible careers, educational opportunities, certification, and more.

NDT Methods

There are 14 different test methods used in NDT, commonly referred to by the type of penetrating medium or the equipment used to perform that test.


NDT is everywhere! Explore the vast industries that use NDT.

NDT Careers


Careers in NDT are unique and diverse. ASNT offers a Career Center that’s filled with resources and content to help you start or advance in your NDT career!

Education Directory

ASNT wants to connect you with educational opportunities to enter the field of NDT or increase your knowledge to help you reach your goals.



ASNT Certification is the most recognized credential for NDT. Earn your certification to build your career and demonstrate your expertise in NDT.

NDT Around the World

NDT is performed in all 7 continents. ASNT partners with international NDT societies to create a safer world.