Plumber Exam Prep / Illinois
Plumber Exam — IL
Journeyman Plumber Exam in Illinois
Complete breakdown of the journeyman plumber licensing process in Illinois — code used, exam provider, and what to study.
Exam Details
- Licensing Body
- Illinois Department of Public Health / Local Jurisdictions
- Exam Provider
- PSI / Local
- Code Edition
- 2018 IPC
- Passing Score
- 70%
- Question Count
- 80
- Exam Fee
- Varies
- Experience Required
- 4 years
Note: Always verify current requirements with Illinois Department of Public Health / Local Jurisdictions.
How Illinois Compares Nationally
- Illinois still uses the 2018 IPC, a cycle or two behind the 2021 edition some states have adopted — confirm the exact edition before you test.
Illinois Plumber License — What to Know
Illinois statewide journeyman license exists, but many municipalities (Chicago) have additional requirements.
Key Code Sections to Master
The International Plumbing Code (IPC) exam covers water supply, drainage, venting, fixtures, water heaters, storm drainage, and special piping. Focus on the table for pipe sizing (Table 604.4 for water supply, Table 710.1 for drainage fixture units), minimum fixture requirements by occupancy type, and venting rules. Drainage fixture units (DFUs) are frequently tested via calculation questions.
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Practice for the Illinois 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.
Illinois Journeyman Plumber Exam — Frequently Asked Questions
How do I get my journeyman plumber license in Illinois?
In Illinois, the journeyman plumber license is issued by Illinois Department of Public Health / Local Jurisdictions. The exam uses the 2018 IPC and is administered by PSI / Local. You need 4 years of experience. The exam fee is Varies and the passing score is 70%. Illinois statewide journeyman license exists, but many municipalities (Chicago) have additional requirements.
What plumbing code is used in Illinois?
Illinois uses the 2018 IPC for its journeyman plumber exam. The exam has 80 questions with a passing score of 70%. The exam is administered by PSI / Local.
What is the difference between IPC and UPC on the plumber exam?
Illinois uses the International Plumbing Code (IPC). The IPC exam covers water supply, drainage, venting, fixtures, and pipe sizing. Key tables to master: Table 604.4 (water supply sizing) and Table 710.1 (drainage fixture units). The IPC is used by the majority of U.S. states.
What is the best app to study for the Illinois plumber exam?
VoltExam offers Illinois 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.