The Sewer Line Root Category Exam is required to become a licensed Pesticide Applicator in Illinois for the chemical control of roots in sewer lines.
Categories dictate the area(s) to which a company may legally apply pesticides. This closed-book exam is administered by the Illinois Department of Agriculture. It consists of 50 multiple-choice questions and requires a minimum passing score of 70%.
Exam Time Limit: 3 hours
Exam Available: Oct. 1, 2026 - Aug. 31, 2027
Exam Fee: $12.6 per attempt proctor fee
To sign up for exams, please see Commercial Exam Enrollment. Questions about online exams? Visit our Frequently Asked Questions page.