Which statement best describes the purpose of the AISC Code of Standard Practice (AISC 303)?

• A. Describes design loads
• B. Specifies welding procedures
• C. Sets tolerances for fabrication and erection
• D. Outlines fireproofing requirements

Answer: (C)

The main idea here is that the AISC Code of Standard Practice is about fabricating and assembling steel work to a common, clearly defined set of tolerances. It standardizes how close the fabricated pieces must be to the intended dimensions, hole locations, camber, sweep, bow, plumbness, and other geometric aspects, and it clarifies who is responsible for discrepancies during fit-up and erection. This makes components from different shops and sites fit together reliably, reduces field rework, and provides a consistent basis for contract interpretation. It doesn’t specify design loads (that’s the role of structural design codes), welding procedures (that’s covered by welding standards), or fireproofing requirements (addressed by fire protection standards).