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IBC Chapter 17 — Special Inspections and Tests

Updated Mar 25, 2026
Requirements for special inspections, contractor responsibilities, and structural testing during construction including concrete, steel, masonry, wood, and soils.

Section 1704: Required special inspections — statement of special inspections prepared by registered design professional. Section 1705.1: Concrete — continuous inspection during placement of reinforcement, prestressing, concrete placement. Batch plant inspection, cylinder testing per ACI 318. Section 1705.2: Steel — shop and field welding inspection per AWS D1.1, high-strength bolting verification, structural steel details. Section 1705.4: Masonry — continuous or periodic inspection per TMS 402. Grout placement, mortar proportions, reinforcement placement. Section 1705.5: Wood — prefabricated structural elements, metal plate connected trusses, high-load connections. Section 1705.6: Soils — fill placement, compaction, special grading, controlled fill, underpinning. Section 1705.12: Sprayed fire-resistant materials — density, thickness, bond strength. Section 1706: Special inspections for wind resistance — structural wood, cold-formed steel. Section 1707: Special inspections for seismic resistance — per ASCE 7, seismic force-resisting systems.

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IBCspecial-inspectionstructural-testingconcrete-testingsteel-weldingmasonry-inspection
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code year
2024
code system
IBC
code section
Chapter 17
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