This Section contains requirements for the qualifi-
cation of welders, welding operators, brazers, brazing op-
erators, plastic fusing machine operators, and the material
joining processes they use during welding, brazing, and
fusing operations for the construction of components un-
der the rules of the ASME Boiler and Pressure Vessel Code,
the ASME B31 Codes for Pressure Piping, and other Codes,
standards, and specifications that reference this Section.
This Section is divided into four parts.