Kelli Erin Duff
Kelli Erin Duff's Illinois Professional Engineer stamp
Watermarked specimen
This downloadable Illinois Professional Engineer stamp specimen was generated for Kelli Erin Duff from the public license details in this directory listing, including license number 062077518. The preview is watermarked and does not prove that Kelli Erin Duff approved or sealed a document.
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Kelli Erin Duff holds a Professional Engineer license in Illinois. The credential is registered under license number 062077518 and is currently active. It has been on record since 2025. Licensure is issued and verifiable through the Illinois Department of Financial and Professional Regulation - Design Professionals.