Illinois plumber exam
Illinois plumbing exams cover eligibility, vendor, references, and retakes. Confirm the current candidate bulletin on the board source before you book.
Verified on: 2026-09-14 · Board source
From the board
- Plumbing # Plumbing Are you preparing to close or reopen your building or business?
- Did you know that your building’s water quality may be impacted by changes in water use?
- Whether your building is closed, unoccupied, or less occupied due to COVID-19, vacation or any other reason, have a plan and flush away stagnant water to protect your water quality!
- Improper plumbing can result in the introduction of pathogenic organisms into drinking water and the escape of toxic gases into the environm
- Board page: Plumbing
Who can schedule
- Most boards require an approved application or eligibility letter before you book
- Name on the exam roster must match your license application exactly
- Confirm the authorization window — many expire in 90 days to one year
What to expect
- Trade and/or business-and-law content depending on the class
- Open-book or closed-book rules and allowed references are class-specific
- Download the current candidate bulletin from the board or exam vendor
Related: Renewal and CE · Get licensed
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