How to Get a Pesticide License in Illinois
Applicator or operator, for hire or not for hire, private or dealer: which Illinois pesticide license you need, the steps, the exams, the 2026 fees and when you have to retest.
Illinois has several pesticide licenses, and the first question is always the same: which one is yours?
The answer depends on what you spray, who you spray for and whether you work under someone else's license. Once you know that, the path is short: study, pass one or two exams and send in the application with the fee.
This guide covers the license types, the steps, the 2026 fees, the testing options and the retest cycle. This site is an independent exam trainer. Licenses are issued by the Illinois Department of Agriculture (IDOA), not by us, and we are not affiliated with IDOA or the University of Illinois.
In short
- Commercial applicators pass General Standards plus a category exam. Commercial operators pass General Standards only.1
- Licenses last 3 years. In 2026 they cost $300 (commercial applicator), $240 (commercial operator), $180 and $150 (not for hire), $90 (private) and $360 (dealer).2
- General Standards has 100 multiple-choice questions, a 70 percent minimum score and a 3 hour limit.1
- In-person testing is free. Online exams are proctored through ProctorU for a fee per attempt.31
- You retest every 3 years, and all licenses expire on December 31.3
Which license do you need
Commercial applicator
The applicator is the person responsible for purchasing, storing, handling and using pesticides in an organization, usually an owner, supervisor or foreman. Every organization needs at least one licensed applicator at each facility location. The applicator's license categories decide where the company may legally apply pesticides.4
Commercial operator
An operator uses pesticides at the job site, but only under the direct supervision of a licensed applicator and only in areas covered by that applicator's license. PSEP explains that supervision means the applicator is in daily contact with the operators.4
For hire or not for hire
The standard commercial licenses are for people who apply pesticides for hire. The not-for-hire licenses are for people who apply pesticides as part of their job, but only on property controlled by their employer, such as a facility maintenance worker.4
Private applicator
A private applicator applies restricted use pesticides to produce an agricultural commodity on property they own or control. Our guide for farmers is the Illinois private pesticide applicator license.5
Dealer
Anyone selling restricted use pesticides needs a dealer license. So does anyone selling general use pesticides for producing an agricultural commodity in containers of 2.5 gallons or 10 pounds and larger.4
| License | Exams | Who it is for |
|---|---|---|
| Commercial applicator | General Standards plus category | Owner, supervisor, foreman, for hire |
| Commercial operator | General Standards | Employee working under an applicator, for hire |
| Not-for-hire applicator or operator | Same as commercial | Employer's own property only |
| Private applicator | Private exam or General Standards | Farm production on own or controlled land |
| Dealer | Dealer exam (50 questions) | Sellers of restricted use pesticides |
Structural pest control falls under a separate act and is not covered here.
Steps to get licensed
- Pick your license type from the table above. Applicators and operators must be at least 18 years old.4
- Study. PSEP offers in-person workshops and self-paced online courses, and sells manuals and workbooks.2
- Register for the exam, either in person or online (see below).
- Pass General Standards. An applicator who wants a license must pass General Standards before taking the category exam.1
- Applicators then pass one or more category exams, such as Field Crops, Turfgrass, Ornamentals or Rights-of-Way.1
- Return the license application with the fee to IDOA. IDOA does not accept credit or debit cards, so plan for a check or money order.3
Operators must also be employed and supervised by a currently licensed applicator.4
Fees
The license fees were adjusted effective January 1, 2026. All are for a 3-year license.6
| License | Fee (3 years) |
|---|---|
| Commercial applicator | $300 |
| Commercial operator | $240 |
| Commercial not-for-hire applicator | $180 |
| Commercial not-for-hire operator | $150 |
| Private applicator | $90 |
| Dealer | $360 |
Training is separate and optional. PSEP lists $45 for General Standards and $25 for each category course.3 An online course gives you access for 30 calendar days.2
In-person or online testing
In person
IDOA offers testing at PSEP training clinics and at test-only sessions. Pre-registration is required, you bring a photo ID and there is no fee for in-person testing.23 Clinic attendees get priority seats, and walk-ins are seated as space allows.3
Online
Online exams are closed book, given by IDOA and remotely proctored through ProctorU. You need a computer with a camera and microphone, and a proctoring fee is required for each exam attempt.1 Appointments can be booked around the clock.3
For testing, PSEP advises bringing your company address, a photo ID, a basic function calculator and your retest letter from IDOA if you have one.3
Staying licensed
Testing is required every 3 years. If your license expires at the end of the year, IDOA should send a retest letter by mid November. Category exams are valid for three years if taken in the same year as General Standards. Otherwise they expire together with the General Standards exam.3
General Standards and Private exams taken on or after October 1, 2026 count toward licensure through the end of 2029.7
A continuing education option is planned. It would let applicators use approved CEUs instead of retaking General Standards and Private exams, while categories would still require exams. The rules are still being written, and the goal is the 2027/2028 licensing year.63
You can check your readiness with a free practice test. Details on the retest cycle are in the guide to Illinois pesticide applicator statistics.
Common questions
Do I need a license to spray on my own farm?
Only for restricted use pesticides. A private applicator license covers those on land you own or control.5
Can an operator work alone?
No. An operator works under the direct supervision of a licensed applicator, who must be in daily contact.4
How many questions are on the General Standards exam?
100 multiple-choice questions, with a minimum passing score of 70 percent and a 3 hour limit.1
Is the practice test the real exam?
No. Our questions are our own. The exam is written and given by IDOA.
Sources
Exam rules, fees and the retest cycle come from IDOA and the University of Illinois Pesticide Safety Education Program (PSEP). Rules change, so confirm details with IDOA before you apply.
- University of Illinois Extension PSEP: Online Commercial Exams (extension.illinois.edu)
- Illinois Department of Agriculture: Training and Testing Options for Pesticide Applicators/Operators (agr.illinois.gov)
- University of Illinois Extension: Know the simplified registration and licensure process 2026-2027 (extension.illinois.edu)
- University of Illinois Extension PSEP: Commercial Licensing (extension.illinois.edu)
- University of Illinois Extension PSEP: Private Licensing (extension.illinois.edu)
- University of Illinois Extension: Continuing education units and fee adjustments for Illinois pesticide certification (Oct. 24, 2025) (extension.illinois.edu)
- University of Illinois Extension: Training and testing reopen for the 2026-2027 pesticide certification season (extension.illinois.edu)
Enough reading, time to practice
10 practice questions, the solution right away, and at the end you see where you stand.