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🔹Scope – Commercial Plumbing Inspector
A Commercial Plumbing Inspector ensures that plumbing systems in commercial buildings are designed, installed, and inspected in compliance with the International Plumbing Code and applicable local standards. This includes verifying the sizing, materials, and installation of sanitary drainage, venting, and water supply systems, as well as fixtures, water heaters, storm drainage, and medical gas systems. Inspectors confirm that approved plans, permits, and documentation are complete, and that all systems are installed safely, function efficiently, and meet code requirements for public health and environmental protection.
🔹 Exam Information
About the ICC Commercial Plumbing Inspector Exam
- Based on:
- 2024 International Plumbing Code (IPC)
- 2024 International Fuel Gas Code (IFGC)
- Format: Open-book, multiple choice
- Time: 2.5 hours (60 questions)
- Passing Score: 75%
🔹Exam Content Breakdown – 2024 Commercial Plumbing Inspector🔹
| Exam Section | Suggested Study Chapters / Focus |
|---|---|
| ✅ General Requirements (8%) | IPC Chapter 1 – Scope and Administration IPC Chapter 3 – General Regulations |
| ✅ Fixtures (15%) | IPC Chapter 4 – Fixtures, Faucets, and Fixture Fittings |
| ✅ Water Heaters (12%) | IPC Chapter 5 – Water Heaters IFGC Chapter 3 – General Regulations (Combustion Air and Venting) |
| ✅ Water Supply and Distribution (18%) | IPC Chapter 6 – Water Supply and Distribution IPC Chapter 13 – Nonpotable Water Systems |
| ✅ Sanitary Drainage (13%) | IPC Chapter 7 – Sanitary Drainage IPC Chapter 10 – Traps, Interceptors, and Separators |
| ✅ Vents (15%) | IPC Chapter 9 – Vents |
| ✅ Traps, Interceptors, Separators, Special Piping, and Storage Systems (9%) | IPC Chapters 10 & 13 – Traps, Interceptors, Chemical and High-Temperature Waste Systems |
| ✅ Storm Drainage (5%) | IPC Chapter 11 – Storm Drainage |
| ✅ Health Care Plumbing (5%) | IPC Chapter 13 – Nonpotable and Specialty Systems IPC Chapter 14 – Subsurface and Special Piping |
🔹 Study Tips
- Focus extra time on the highest-weighted sections — they carry the most points on the exam.
- Mark your codebook with tabs for fast navigation.
- Practice under timed conditions to simulate real test pressure.
- Use flashcards for quick lookup and instant feedback when reviewing material.
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