Specifies materials of construction, weld preparations, weld qualities, qualification of welding procedures, qualification of welding personnel, and fabrication and inspection requirements for welds related to the arc welding of steelwork in structures made up of combinations of steel plate, sheet or sections, including hollow sections and built-up sections or castings and forgings. Tables of weld preparations are given for both butt and fillet welds which when welded in accordance with other specified requirements are deemed prequalified and do not require qualification testing. Provides two categories of welds based on the type of application. Appendices give guidance in the selection of the appropriate category for the application and the extent of non-destructive examination. Applies specifically to the welding of steel work in structures complying with AS 1250, SAA Steel Structures Code.