Illinois Professional Engineer (PE) License Requirements
Requirements, fees, and renewal timing for this license, sourced from state board records.
Provides engineering services to the public. Requires FE + PE exams.
What the Illinois data shows for Professional Engineer (PE)s
To practice as a professional engineer (pe) in Illinois, the state licensing board requires board-approved training, a passing score on FE Exam then PE Exam, and 4 years of supervised work experience. Applicants must be at least 18 years old. The regulation sits under Illinois's professional licensing framework, which classifies the training track as "Bachelors Degree in Engineering".
Budget $466 to get started, plus $374 at each renewal on a 2-year cycle. Renewal isn't the end of the cost: 30 hours of continuing education are due every 2-year cycle, a recurring time commitment worth planning for.
On reciprocity, professional engineer (pe)s should know: NCEES model law: recognized in most states.
Licensing Ease Score
A higher score means this specific license is LESS burdensome to obtain and maintain here than the national requirement corpus, based on education hours, fees, continuing education, and experience requirements, not an overall judgment of the profession or the state.
Licensing Requirements in Illinois
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Frequently Asked Questions
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Related Guides
What to do with this professional engineer (pe) license
Professional Engineer (PE) in Illinois, with a documented reciprocity path, is one requirement row in a professional engineer (pe)-wide, 50-state comparison.
- See how Illinois's professional engineer (pe) requirements compare to every other state before relocating. Professional Engineer (PE) in every state
- Confirm whether your out-of-state professional engineer (pe) license transfers under an interstate compact before starting a new application. Reciprocity guide
- See how Illinois's overall licensing burden compares to other states, not just this one profession. Illinois overview
Requirements shown are compiled from NCSL and Institute for Justice research; verify current rules with the Illinois licensing board before making career decisions.
Source: NCSL Occupational Licensing Database, Institute for Justice License to Work (3rd Ed.), state licensing board websites
According to the National Conference of State Legislatures and the Institute for Justice, the PlainCredential comparison corpus (current as of May 15, 2026) maps 4,947 state licensing requirement records; see the methodology.
Read our methodology - how this data is sourced, computed, and verified.