may also be used.
Welding Procedure Specifications and Welder/Welding
Operator Performance Qualification records meeting the
above requirements do not need to be amended to include
any variables required by later Editions and Addenda
except as specified in QW-420.
Qualification of new Welding Procedure Specifications
or Welders/Welding Operators and requalification of
existing Welding Procedure Specifications or Welders/
Welding Operators shall be in accordance with the current
Edition (see Foreword) and Addenda of Section IX.