Plumber Exam Prep / Oregon
Plumber Exam — OR
Journeyman Plumber Exam in Oregon
Complete breakdown of the journeyman plumber licensing process in Oregon — code used, exam provider, and what to study.
Exam Details
- Licensing Body
- Oregon Building Codes Division
- Exam Provider
- PSI Exams
- Code Edition
- Oregon Plumbing Specialty Code (UPC-based)
- Passing Score
- 75%
- Question Count
- 80
- Exam Fee
- $50
- Experience Required
- 4 years
Note: Always verify current requirements with Oregon Building Codes Division.
How Oregon Compares Nationally
- Oregon's $50 plumbing exam fee sits below the national median of about $65.
- The 75% passing bar is higher than the 70% most states require, so build in extra margin.
Oregon Plumber License — What to Know
75% passing score required. Oregon uses a UPC-based state code with its own amendments.
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.
Try it free — no signup, instant feedback
Answer a few Plumber questions now
Plumber · Question 1 of 5
According to the IPC, what is the drainage fixture unit (DFU) value for a residential water closet (1.6 gpf or less)?
Pick an answer to see the explanation + an instant AI breakdown.
Start on the web
Practice for the Oregon 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.
Oregon Journeyman Plumber Exam — Frequently Asked Questions
How do I get my journeyman plumber license in Oregon?
In Oregon, the journeyman plumber license is issued by Oregon Building Codes Division. The exam uses the Oregon Plumbing Specialty Code (UPC-based) and is administered by PSI Exams. You need 4 years of experience. The exam fee is $50 and the passing score is 75%. 75% passing score required. Oregon uses a UPC-based state code with its own amendments.
What plumbing code is used in Oregon?
Oregon uses the Oregon Plumbing Specialty Code (UPC-based) for its journeyman plumber exam. The exam has 80 questions with a passing score of 75%. The exam is administered by PSI Exams.
What is the difference between IPC and UPC on the plumber exam?
Oregon uses the Uniform Plumbing Code (UPC). The UPC covers similar topics to the IPC but with different article numbering. Key tables: Table 6-4 (water supply) and Table 7-3 (drainage fixture units). The UPC is generally considered stricter on venting requirements than the IPC.
What is the best app to study for the Oregon plumber exam?
VoltExam offers Oregon journeyman plumber exam prep on the web with IPC/UPC practice questions, explanations, state guidance, and built-in pipe sizing tools. Native mobile apps are available separately for offline study.