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Residential Plumbing Inspector (P1)
Find the current format, timing, scoring, fees, eligibility, and testing options for P1, with direct links to official sources.
Official exam siteJump to prep options ↓
Questions60 questions
Testing time2 hours
ScoringPassing requires a scaled score of 75 on the ICC standardized scale, set by the Code Council and the Exam Development Committee (EDC)
Exam feeUSD 320.00 exam fee (ICC Store list price; ICC members receive discounted pricing, member price shown at login)
Prep options
Study resources for P1
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Exam overview
What to know before choosing your prep
- Who runs it
- ICC
- Category
- Building Codes & Inspection
- Current version
- P1; offered on the 2021 and 2024 I-code editions (2024 is the current edition); exam content is based on the plumbing provisions (Chapters 25-33) of the applicable edition of the International Residential Code, with the code cycle selected at purchase
- Where it applies
- United States — national
- Exam languages
- English
- Testing provider
- ICC PRONTO (ProctorU Platform / Meazure Learning test centers)
- Format
- Computer-based, open-book; ICC national certification exams are delivered via ICC PRONTO, either in person at a Meazure Learning (ProctorU Platform) test center or online with live remote proctoring
- Availability
- Remote-proctored PRONTO exams available on-demand 24/7/365; in-person testing at over 550 Meazure Learning test centers; the purchased exam must be scheduled within one year (365 days) and completed in a single session
- Remote testing
- Available
Exam structure
60 four-option multiple-choice, open-book items across six content areas: General Requirements; Fixtures; Water Heaters; Water Supply and Distribution; Sanitary Drainage; and Vents. Approved reference: the applicable edition of the International Residential Code (IRC)
Eligibility
No prerequisites are required to take an ICC certification exam, though ICC cautions that passing without code knowledge is unlikely; candidates must bring/purchase the applicable IRC edition as the open-book reference
Retake policy
Six exam attempts within a six-month period; exam fee paid at every attempt; after six attempts, must wait six months from the first attempt to register again