Covers major NDT methods: Radiographic (RT), Ultrasonic (UT), Magnetic Particle (MT), Liquid Penetrant (PT), and Visual (VT). Level I focuses on basic technique application; Level II on interpretation and supervision; Level III on advanced analysis and program oversight. Includes theory, equipment use, calibration, and reporting. Emphasizes flaw detection, material integrity, and standards compliance. Offers preparation for ISO/ASNT-based certification exams.