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.
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.