ANSI/ASNT CP-105 specifies the body of knowledge to be used as part of a training program qualifying and certifying NDT personnel. It applies to personnel whose tasks or jobs require knowledge of the technical principles underlying the NDT methods for which they have responsibility. These tasks include: performing, specifying, reviewing, monitoring, supervising, and evaluating NDT work. Changes to the 2020 edition include clarifying the use of standardization and calibration throughout every method and the addition of the full matrix capture technique to the UT Level II training outline.