All welders qualified per AWS D1.1, as well as emphasis on weld symbolism on shop drawings for correct applicable procedures.
Bolting procedures compliant with RCSC (Research Council on Structural Connections).
Effective procedures for contract and project specifications, and the dissemination to all parties concerned within the organization. Methods of routine inspections and verification of adherence to contract documents, with corrective action procedures in place.
Material is ordered, and confirmed as being received, in compliance with contract documents, identifiable later at the time of fabrication.
Calibration and maintenance of equipment (much of which is CNC now).