A Non-Destructive Testing (NDT) inspector evaluates materials and assembly parts to ensure they meet quality control standards and are safe to use before they go to the final construction stage. Unlike destructive tests that damage the components being examined, NDT inspectors use specialized equipment such as X-ray cameras and ultrasound machines to search for problems that are not visible to the naked eye. NDT inspectors work in every industry, including aerospace, manufacturing, and defense; they test the safety of a variety of products, from auto parts to nuclear reactors. Some examples of testing methods include Electromagnetic Testing (ET), Guided Wave (GW) testing, and Thermal/Infrared Testing (IR).