1.4 Final Inspection Report, Agency Qualifications & Certificate of Occupancy Sign-off

1.4 Final Inspection Report, Agency Qualifications & Certificate of Occupancy Sign-off

The Final Report of Special Inspections brings together the approved agency’s findings from the inspection program. It identifies the required inspections and tests and documents how reported discrepancies were corrected. Use it to reconcile the Statement of Special Inspections (SSI) with the work actually covered.

The final report under IBC Section 1704.2.4

The 2021 and 2024 model IBC both require a final report documenting required inspections and tests and correction of discrepancies. The report goes to the building official at a time agreed before work starts by the owner or the owner’s authorized agent. Interim inspection and test reports go to both the building official and the registered design professional in responsible charge. The project can require copies of the final report for additional recipients.

Preparing for closeout

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Key Components of a Compliant Final Report

The agency can organize the final report around scope, results and discrepancy disposition. Check the jurisdiction’s approved format and any required signatures or seals.

1. Statement of completion and conformance

Reconcile the approved SSI and the inspection records. Identify the activities performed and their status against the approved construction documents. Record missing evidence and inspections that could not be performed or verified. For example, if an anchor group was covered before inspection, identify the affected placement and any approved follow-up investigation. Avoid claiming the original inspection took place.

2. Comprehensive Discrepancy Tracking Ledger (NCR Log)

An itemized register of every Non-Conformance Report (NCR) generated during the project lifecycle:

[!CRITICAL] Carry unresolved items forward explicitly. Use the approved correction or disposition and the available evidence to determine what you can report as verified. The building official determines what additional action is required for closeout.

3. Compressive Strength Cylinder Summary & Statistical Evaluation

Where the closeout package includes strength reports, link the laboratory records to the placements. Under ACI 318-19 Section 26.12.3.1, evaluate acceptance using standard-cured tests at the specified age. Section 19.2.1.3 uses 28 days unless the approved documents specify another age:

• Criterion 1: Every arithmetic average of any three consecutive strength tests equals or exceeds the specified design strength ($f'_c$).
• Criterion 2: No individual strength test (average of at least two $6\times12\text{ in.}$ cylinders or at least three $4\times8\text{ in.}$ cylinders from the same sample) falls below $f'_c$ by more than $500\text{ psi}$ (when $f'_c \le 5,000\text{ psi}$) or by more than $0.10 f'_c$ (when $f'_c > 5,000\text{ psi}$).

4. Supporting Material Certifications and Field Test Records

Include applicable documents when required for the work and identify the supporting report for each finding. Examples include:

• Mill test reports for reinforcing steel verifying the specified ASTM bar designation and grade, with weldability documentation where required.
• Ready-mixed concrete supplier mix qualification records and submittal approvals.
• Welder qualification records under the applicable AWS D1.4 requirements and weld inspection logs.
• Post-installed anchor tension proof-load testing logs.

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Special Inspection Agency Qualifications and Accreditation

IBC Section 1703.1 calls for an approved agency to be objective, competent and independent from the contractor responsible for the work being inspected. The agency discloses potential conflicts to the building official and registered design professional in responsible charge. It also demonstrates adequate equipment and qualified personnel. Section 1704.2.1 requires written documentation of the inspectors’ competence and relevant experience or training before construction starts. Relevance depends on the type and complexity of work.

A building department can use accreditation and certification to evaluate the agency and personnel. Check the scope of any accreditation and compare it to the actual assignment. Approval under Chapter 17 rests with the building official. For example, a laboratory scope for concrete strength testing is evidence for that testing function. A separate field assignment to inspect an embedded connection requires an agency and inspector qualified for the relevant inspection.

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Role in the Issuance of the Certificate of Occupancy (C of O)

Under IBC Section 111, the building official inspects the building or portion at issue and determines whether a certificate of occupancy can be issued. On a project with required special inspections, provide the final report under Section 1704.2.4 and comply with the building department’s closeout requirements. The agency records its findings. The building official decides occupancy.

Temporary occupancy

Section 111.3 allows the building official to issue a temporary certificate for a portion that can be occupied safely before the entire permitted project is complete. The building official sets its duration and can require documentation for the proposed occupied area. If that area relies on a newly cast transfer slab, identify the reports and strength records relevant to that slab and flag any missing verification. Follow the building official’s requirements for any partial reports.

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Professional Ethics and Legal Liability

Sign or submit only findings that the agency can substantiate. If the inspector missed a placement, report what was missed and what later evidence was available. Correct a factual error in the report through the agency’s document control so the recipients can identify the revised finding. ICC’s credentialing rules allow discipline for ethics violations, including suspension or revocation where applicable.