Recommended Practice SNT-TC-1A: Personnel Qualification and Certification in Nondestructive Testing has been prepared to establish guidelines for the qualification and certification of NDT personnel whose specific jobs require appropriate knowledge of the technical principles underlying the nondestructive tests they perform, witness, monitor or evaluate. ANSI/ASNT CP-105: Topical Outlines for Qualification of Nondestructive Testing Personnel establishes the minimum topical outline requirements for the qualification of nondestructive testing (NDT) personnel, and details the minimum training course content for NDT personnel.