This guide discusses the use of established and emerging nondestructive testing (NDT) procedures used to inspect metal parts made by additive manufacturing (AM). The guide focuses on parts that might be used in aerospace applications, produced by a variety of AM methods. The guide discusses NDE of parts after they have been fabricated with covered methods including computed tomography, eddy current testing , optical metrology, penetrant testing, process compensated resonance testing, radiographic testing, infrared thermography, and ultrasonic testing.