Special Inspector Exams
What this domain tests
This domain covers the ICC special inspection certifications: reinforced concrete, structural masonry, structural steel and bolting, welding, soils, spray-applied fireproofing, and prestressed concrete. The exams test IBC Chapter 17 duties together with the referenced installation standards, including ACI 318, TMS 402/602, AISC 360 with the RCSC bolting specification, AWS D1.1, and the ASTM soil and fireproofing test methods.
The Chapter 17 framework
- The registered design professional in responsible charge prepares the Statement of Special Inspections, listing each type of inspection, the extent (continuous or periodic), and the referenced standard.
- The owner or the owner's agent retains an approved agency. The special inspector reports through that agency to the building official, not through the contractor whose work is being inspected.
- Discrepancies are reported in writing to the contractor, the registered design professional, and the building official. Non-conforming work is the building official's determination; the inspector documents and reports, it does not approve or reject.
- Structural observation is a separate function performed by the registered design professional. Special inspection does not replace it, and one does not satisfy the other.
Worked example
A grouted CMU wall is under construction to TMS 602. The inspector verifies mortar and grout proportions, joint reinforcement placement, grout space cleanliness, and that grout is consolidated and placed within permitted lift heights. Prism and mortar sampling frequencies come from the project specification and TMS 602, not from habit. If the contractor proposes a grout lift that exceeds the permitted height, the inspector stops the operation, records the condition, and notifies the contractor, the design professional, and the building official. The inspector does not grant a variance.
Traps that cost marks
- Confusing periodic with continuous inspection; the extent is fixed in the Statement, not by the inspector's judgment.
- Believing the certification authorizes you to approve or reject work.
- Missing the written, same-day notification duty when a discrepancy is found.
- Citing a test method you cannot place, such as mixing up the sand-cone density method with the nuclear gauge method.
- Forgetting that the building official may require special inspections beyond the listed categories.