NChapter N Quality control and quality assurance

This chapter addresses minimum requirements for quality control, quality assurance, and nondestructive testing for structural steel systems and steel elements of composite members for buildings and other structures.

User Note: This chapter does not address quality control or quality assurance for the following items:

• (a) Steel (open web) joists and girders
• (b) Tanks or pressure vessels
• (c) Cables, cold-formed steel products, or gage material
• (d) Concrete reinforcing bars, concrete materials, or placement of concrete for compo- site members

The chapter is organized as follows:

• N1. General Provisions
• N2. Fabricator and Erector Quality Control Program
• N3. Fabricator and Erector Documents
• N4. Inspection and Nondestructive Testing Personnel
• N5. Minimum Requirements for Inspection of Structural Steel Buildings
• N6. Approved Fabricators and Erectors
• N7. Nonconforming Material and Workmanship
• N8. Minimum Requirements for Shop- or Field-Applied Coatings