Engineering License from Montana to Illinois: Does It Transfer? (2026)
Last verified: 2026-07-21 · source: Illinois Department of Financial and Professional Regulation (IDFPR), Division of Professional Regulation — Board of Professional Engineers ↗
A PE license transfers from Montana to Illinois by endorsement — there is no automatic reciprocity, but you do not start over. Apply to the Illinois Department of Financial and Professional Regulation (IDFPR), Division of Professional Regulation — Board of Professional Engineers, verify your Montana license, and meet Illinois's endorsement requirements. FE and PE exam results transfer via your NCEES Record and are not retaken; Illinois requires passage of both the FE and PE exams for licensure, but an endorsement applicant whose FE was waived in another jurisdiction may submit a waiver request to the Board (68 Ill. Adm. Code 1380.280); Illinois has no separate state law exam. Note: Professional Engineer (PE) and Structural Engineer (SE) are separate Illinois licenses.
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Verdict
Licensure by endorsement
Illinois grants PE licensure by comity, so a Professional Engineer licensed in Montana does not start over — but does file a full Illinois application. Your Montana license, ABET degree, qualifying experience, and FE and PE results reach the Illinois Department of Financial and Professional Regulation (IDFPR), Division of Professional Regulation — Board of Professional Engineers through your NCEES Record; the board's task is to confirm they meet Illinois's practice act, not to re-test you. FE and PE exam results transfer via your NCEES Record and are not retaken; Illinois requires passage of both the FE and PE exams for licensure, but an endorsement applicant whose FE was waived in another jurisdiction may submit a waiver request to the Board (68 Ill. Adm. Code 1380.280); Illinois has no separate state law exam. Note: Professional Engineer (PE) and Structural Engineer (SE) are separate Illinois licenses. Two things govern your timeline: keeping your Montana license active and unencumbered while the Illinois application is pending, and clearing any Illinois-specific exam or statutes review before the license issues.
What changes, Montana → Illinois
| Montana (current) | Illinois (destination) | |
|---|---|---|
| Application fee | $75 (Montana PE comity application fee (checks payable to the Board of PE & PLS); biennial renewal is also $75. Transmitting an NCEES Record costs $175 for the first board and $100 for each additional board, paid separately to NCEES) | $100 ($100 Professional Engineer license application fee (68 Ill. Adm. Code 1380.275; the same single application fee applies to endorsement); renewal is $30 per year. Request that NCEES transmit your Record to Illinois — NCEES charges $175 first board / $100 each additional, paid separately) |
| Processing time | Board publishes no comity turnaround; contact DLI Business Standards at (406) 444-6880 for current timelines | IDFPR does not publish a guaranteed endorsement turnaround; the board's PE FAQ states that using an NCEES Record may shorten processing time |
| Licensing authority | Montana Board of Professional Engineers and Professional Land Surveyors (Department of Labor & Industry, Business Standards Division) | Illinois Department of Financial and Professional Regulation (IDFPR), Division of Professional Regulation — Board of Professional Engineers |
The destination column is what you must satisfy — Illinois sets the rules for this move.
Step by step
- Confirm Illinois's current requirements on the Illinois Department of Financial and Professional Regulation (IDFPR), Division of Professional Regulation — Board of Professional Engineers website (linked below) — rules change.
- Submit the endorsement application to the Illinois Department of Financial and Professional Regulation (IDFPR), Division of Professional Regulation — Board of Professional Engineers.
- Arrange license verification from your current state via the verification system.
- Hold a current, active PE license issued by another U.S. jurisdiction under substantially equivalent standards.
- Satisfy the NCEES Engineering Education Standard (EAC/ABET degree or approved equivalent; evaluations showing deficiencies are not accepted).
- Submit an NCEES Record in lieu of transcripts, experience forms, and exam certifications (encouraged; may shorten processing).
- Note that PE and SE are licensed separately in Illinois and neither can offer the other's services.
- Pay the fees ($100 ($100 Professional Engineer license application fee (68 Ill. Adm. Code 1380.275; the same single application fee applies to endorsement); renewal is $30 per year. Request that NCEES transmit your Record to Illinois — NCEES charges $175 first board / $100 each additional, paid separately)) and allow IDFPR does not publish a guaranteed endorsement turnaround; the board's PE FAQ states that using an NCEES Record may shorten processing time.
Official links
Related guides
Frequently asked questions
Does Illinois accept a Montana PE license?
A PE license transfers from Montana to Illinois by endorsement — there is no automatic reciprocity, but you do not start over. Apply to the Illinois Department of Financial and Professional Regulation (IDFPR), Division of Professional Regulation — Board of Professional Engineers, verify your Montana license, and meet Illinois's endorsement requirements. FE and PE exam results transfer via your NCEES Record and are not retaken; Illinois requires passage of both the FE and PE exams for licensure, but an endorsement applicant whose FE was waived in another jurisdiction may submit a waiver request to the Board (68 Ill. Adm. Code 1380.280); Illinois has no separate state law exam. Note: Professional Engineer (PE) and Structural Engineer (SE) are separate Illinois licenses.
Do I retake the FE or PE exam moving from Montana to Illinois?
FE and PE exam results transfer via your NCEES Record and are not retaken; Illinois requires passage of both the FE and PE exams for licensure, but an endorsement applicant whose FE was waived in another jurisdiction may submit a waiver request to the Board (68 Ill. Adm. Code 1380.280); Illinois has no separate state law exam. Note: Professional Engineer (PE) and Structural Engineer (SE) are separate Illinois licenses.
What does the Montana-to-Illinois comity application cost?
$100 ($100 Professional Engineer license application fee (68 Ill. Adm. Code 1380.275; the same single application fee applies to endorsement); renewal is $30 per year. Request that NCEES transmit your Record to Illinois — NCEES charges $175 first board / $100 each additional, paid separately).
Can I keep my Montana PE license after I'm licensed in Illinois?
Yes — PE licenses stack. Keep the Montana license active (its renewal and continuing-education/PDH clock run separately) and you hold both. Engineers working near state lines or nationally routinely carry several PE licenses at once, all sourced from a single NCEES Record.
Sources
Primary sources only — official boards and compact commissions. Data last verified 2026-07-21.
- IDFPR — Professional Engineering Frequently Asked Questions (endorsement pathway, FE/PE requirement, NCEES Record, PE vs SE) ↗ (accessed 2026-07-21)
- Ill. Admin. Code tit. 68, § 1380.275 — Fees (Professional Engineer license $100) ↗ (accessed 2026-07-21)
- IDFPR — Professional Engineering (Practice Act, rules, application forms) ↗ (accessed 2026-07-21)
- NCEES — Records Program (comity licensure) ↗ (accessed 2026-07-21)
- Montana Board of PE & PLS — Professional Engineer license information (comity, $75 fee) ↗ (accessed 2026-07-21)
- Montana Board of PE & PLS — PE Application with NCEES Record (comity requirements, laws-and-rules questionnaire, references) ↗ (accessed 2026-07-21)
- NCEES — Records Program (comity transmittal fees) ↗ (accessed 2026-07-21)
Reviewed by Billy Reiner, Editor · verified against primary sources 2026-07-21
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