Master commercial plumbing inspection with study guides, practice tests, audio cram sessions, and a proven tabbing system for the 2024 IPC.
No credit card required
Everything you need for the P2 Commercial Plumbing Inspector exam — based on the 2024 International Plumbing Code® (IPC)
6-hour structured review covering Water Supply and Distribution, Fixtures, Vents, and more — weighted to match P2 exam percentages
Timed 60-question simulation matching the P2 exam format with detailed answer explanations
Digital flip-cards for key terms, code sections, and references from the 2024 International Plumbing Code® (IPC)
Listen-and-learn audio covering high-yield P2 topics for studying on the go
Color-coded tab system for the 2024 International Plumbing Code® (IPC) — find answers fast during your open-book exam
Win the computer-based PRONTO exam: digital code book search tactics and a category-by-category section-finding playbook for the P2
Insert sheets with key tables, formulas, and values from the 2024 International Plumbing Code® (IPC) for blank code book pages
6-8 week structured program prioritized by P2 category weights — heaviest topics first
Intensive pre-exam review focusing on the highest-weighted P2 topics: Water Supply and Distribution, Fixtures, Vents
Our study materials cover every category tested
Get a head start on your P2 Commercial Plumbing Inspector exam preparation with this preview of our comprehensive study guide. Sign up for full access to all study materials.
Commercial Plumbing Inspector (P2) — ICC national certification, 2024 code year
Every answer on this exam is a lookup. Learn where each rule lives, tab it, and practice reading the table rows and footnotes — the exam rewards the inspector who can find and read the code quickly, not the one who memorizes numbers.
| # | Category | Weight | Sub-topics tested |
|---|---|---|---|
| 1 | General Requirements | 8% | Piping Protections · Piping Installation, Support, Sleeving, and Penetrations |
| 2 | Fixtures | 15% | Fixtures and Material Approvals · Installation, Location, Clearance, and Access · Flow Rates · Accessibility |
| 3 | Water Heaters | 12% | Installation Requirements · Gas Piping, Combustion Air, and Venting |
| 4 | Water Supply and Distribution | 18% | Materials, Joints, and Connections · Identification, Sizing, and Valving · Protection Against Contamination and Treatment · Nonpotable Water Distribution Systems |
| 5 | Sanitary Drainage | 13% | Materials and Fittings · Sizing of System · Valves, Sumps, Ejectors, and Cleanouts · Indirect Waste |
| 6 | Vents | 15% | Materials, Joints, Connections, and Grade · Sizing, Method, and Installation |
| 7 | Traps, Interceptors, Separators, Special Piping, and Storage Systems | 9% | Installation Requirements · Chemical Treatment, High Temperature, and Neutralization Systems |
| 8 | Storm Drainage | 5% | Materials Sizing and Installation · Sub-soil Sub-drains |
| 9 | Health Care Plumbing | 5% | Materials and Installation · Service and Distribution |
Water Supply (18%), Fixtures (15%) and Vents (15%) together are almost half the exam. Sanitary Drainage (13%) and Water Heaters (12%) — including the IFGC gas-piping, combustion-air and venting material — make up another quarter.
The outline's "General Requirements" is not Chapter 1 administration; it is Chapter 3 General Regulations (protection, trenching, structural safety, support, penetrations, tests) with the administrative inspection provisions of Chapter 1 behind it. Chapter 1 was renumbered in 2024: permits are Section 105, inspections and testing Section 111, means of appeals Section 112, violations Section 114, stop work orders Section 115.
Governing text: Section 305 Protection of Pipes and Plumbing System Components, Section 306 Trenching, Excavation and Backfill, Section 309 Flood Hazard Resistance.
Studying for similar exams? These certifications share content with the P2 exam.
Created by Levi Mittag — a Certified Building Official, Field Inspection Supervisor, and Lean Six Sigma Black Belt with 19 ICC certifications and 26 years in the building industry.
7 days free, then $19/mo. All 28 exams included. No credit card required.
Not just practice questions — a complete study system with audio, tabbing, and strategy.
Built by an active supervisor who uses these methods to train his own inspection team.