How does each welder and welding operator identify the welds produced by them?

Each welder and welding operator's identification mark shall be hand or machine stamped adjacent to each completed weld

Each welder and welding operator shall inform the owner/operator which welds he or she completed

Each welder and welding operator shall show the inspector exactly which welds they completed

Each welder and welding operator shall inform the owner/operator which welds they will be making prior to the start of such welding