Specification for Automotive Weld Quality-Resistance Spot Welding of Aluminum
standard by American Welding Society, 03/09/2017

Specification for AWS Certification of Radiographic Interpreters, Includes Amendment 1
standard by American Welding Society, 03/18/2016

Specification for Qualification and Certification for Entry Level Welders
standard by American Welding Society, 01/01/2004