Plumber Exam Prep / Idaho
Plumber Exam — ID
Journeyman Plumber Exam in Idaho
Complete breakdown of the journeyman plumber licensing process in Idaho — code used, exam provider, and what to study.
Exam Details
- Licensing Body
- Idaho Division of Building Safety
- Exam Provider
- PSI Exams
- Code Edition
- 2018 UPC
- Passing Score
- 75%
- Question Count
- 80
- Exam Fee
- $40
- Experience Required
- 4 years
Note: Always verify current requirements with Idaho Division of Building Safety.
Idaho Plumber License — What to Know
75% passing score required. Idaho uses the Uniform Plumbing Code (UPC).
Key Code Sections to Master
The Uniform Plumbing Code (UPC) exam covers similar topics to the IPC but with different numbering. Focus on water supply pipe sizing (Table 6-4), drainage fixture units (Table 7-3), venting requirements (Chapter 9), and fixture installation requirements (Chapter 4). The UPC is generally considered stricter on venting requirements than the IPC.
Start on the web
Practice for the Idaho plumber exam
Use this state guide to understand the license requirements, then drill IPC and UPC practice in your browser with pipe-sizing tools. Web access and native app purchases are separate.