CPI (NCCT) study guide
CPI · Work through your exam, one topic at a time.
The Certified Professional Inspector (CPI) credential is the certification that the International Association of Certified Home Inspectors (InterNACHI®) awards to inspectors who complete its certification pathway. InterNACHI® describes itself as the world's leading association for home inspectors and states that it provides free training, online testing and certification, business development, marketing support, and discounts to its members. The CPI study guide has 7 sections and about 1,646 words.
01Home Inspection Standards of Practice
The Standards of Practice domain tests whether you understand the minimum scope, limitations, and reporting duties of a home inspection. The exam expects you to distinguish what an inspector must observe from what is explicitly excluded, and to use language that is accurate rather than absolute.
287 words, about 1 min02Roofing
The Roofing domain tests your ability to inspect roof coverings, flashings, drainage, and penetrations, and to report conditions without overstating what a visual inspection can prove. Roof inspections may be done from the ground, eaves, or roof surface when safe; walking the roof is not required.
234 words, about 1 min03Structure and Exterior Systems
The Structure and Exterior Systems domain tests foundations, grading, drainage, wall coverings, decks, porches, railings, stairs, driveways, and walkways. The exam focuses on visible evidence of movement, moisture, and unsafe conditions, and on knowing when to recommend a specialist.
235 words, about 1 min04Plumbing
The Plumbing domain tests supply, drain, waste, vent, fixture, and water-heating components. The exam emphasizes observed performance and safety devices, and the limits of a non-invasive inspection.
250 words, about 1 min05Electrical and HVAC Systems
This domain combines electrical service and distribution with heating, cooling, and ventilation equipment. The exam tests safe observation, normal-control operation, and recognition of defects that require a licensed specialist.
229 words, about 1 min06Interior
The Interior domain tests visible conditions in walls, ceilings, floors, doors, windows, stairs, railings, fire separation, and garage doors. The focus is on safety, water damage, and functional defects that a visual inspection can reasonably identify.
194 words, under 1 min07Insulation, Ventilation and Inspection Business/Ethics
This domain covers insulation and ventilation observations plus the business and ethical duties that protect clients and the inspector’s independence. The exam tests what must be observed, what is excluded, and how conflicts of interest are handled.
217 words, about 1 min