IL Land Surveyor study guide
IL Land Surveyor · Work through your exam, one topic at a time.
The Illinois Land Surveyor credential is a state professional license administered through the Illinois Department of Financial and Professional Regulation (IDFPR), the agency that regulates professions in Illinois. This page is an independent study resource for candidates preparing for the Illinois Professional Land Surveyor licensing examination; it is not affiliated with, endorsed by, or operated by IDFPR or any testing vendor. The IL Land Surveyor study guide has 4 sections and about 1,494 words.
01Land Surveying Fundamentals and Boundary Law
This domain tests the evidentiary hierarchy that decides where a boundary legally lies, the doctrines that move a line without a deed (adverse possession, prescription, acquiescence, estoppel), and the PLSS and riparian rules Illinois surveyors apply daily. Courts rank evidence: natural monuments (a river, a marked tree) beat artificial monuments (set iron, stone, concrete post); monuments beat calls for adjoiners; adjoiners beat courses and distances; distances beat area.
401 words, about 2 min02Illinois Boundary Survey Practice and Conveyancing
This domain tests Illinois-specific procedure: which statute governs licensure and practice standards, when a plat is mandatory, how deeds and recording create priority, and what a boundary plat must show. The Illinois Professional Land Surveyor Act (225 ILCS 330) governs licensure, sealing, and discipline through IDFPR and the Illinois Board of Land Surveyors.
379 words, about 2 min03Measurement, Geodesy, and Mapping Systems
This domain tests measurement quality and the geodetic bookkeeping that converts what the instrument reads into what the record requires. Total-station and leveling work is judged by closure, not by individual readings.
364 words, about 2 min04Professional Practice, Ethics, and Illinois Regulation
This domain tests how licensure, ethics rules, and Illinois administrative process shape professional decisions - material that is easy to answer "in general" and easy to miss on specifics. 225 ILCS 330 creates the Professional Land Surveyor license and protects the title; IDFPR administers the Act and the Illinois Board of Land Surveyors advises.
350 words, about 2 min