How many levels are there in NDT?

There are three levels of qualification for each type of NDT certification. In order to evaluate an asset using a particular NDT method, a technician must be certified in that method. Therefore, various types of NDT technicians exist including UT (Ultrasonic Testing), RT (Radiography Testing), ET (Eddy-current or Electromagnetic Testing), MT (Magnetic Particle Testing), VT (Visual Testing), and PT (Liquid Penetrant Testing) technicians. NDT technicians can be certified as Level 1, Level 2, or Level 3.

The higher the level of certification, the more advanced NDT services a technician can provide. In addition, the analysis and opinions of higher-level technicians are more trusted and these technicians earn more. To achieve each level of certification, technicians must obtain industry-specific experience, and complete training, as well as both written and practical exams.