ICC Commercial Building Inspector (B5) Certification Exam

The ICC Commercial Building Inspector (B5) Certification Exam assesses knowledge used to inspect commercial buildings for compliance with applicable building-code requirements. It is intended for building inspectors and other construction professionals who evaluate site conditions, building features, and architectural plans. Candidates should be ready to apply code provisions—not just recall definitions—to inspection scenarios. Core areas include inspection scope and procedures, occupancy classification and use groups, construction types and fire-resistance ratings, and fire-protection and smoke-control features.

For the 2027–2028 cycle, confirm the applicable code editions, exam outline, references, and testing rules in the current International Code Council exam listing before you study; details can change between cycles. Prepare by mapping the outline to the listed code material, then practice finding and applying provisions efficiently. Pay particular attention to how occupancy, construction type, fire resistance, and building features connect in real inspections. Timed multiple-choice practice can help reveal weak areas, but code navigation and careful reading are central to preparation.