Pesticide licence in Oklahoma: categories, exam and renewal
What the Oklahoma Department of Agriculture, Food and Forestry says about certified applicators, the commercial business license at US$100 a category, category 3a Ornamental and Turf with 20 CEUs every five years, the US$92 exam and the liability insurance limits.
Checked against the sources at the bottom of this page on October 8, 2026. Rules, fees and pay change: the source has the last word.
This page reports what the official source says. It is not legal advice: ask the office named here. The source is the Oklahoma Department of Agriculture, Food and Forestry, Consumer Protection Services, which certifies applicators and licenses the pesticide business. The parent page, pesticide licences by country, has the national background.
At a glance
| Item | What the department says |
|---|---|
| Agency | Oklahoma Department of Agriculture, Food and Forestry, Consumer Protection Services |
| Certificate and licence for work for hire | Certified applicator card, plus a commercial pesticide business license held by the applicator or the employer; US$100 per category, at most US$500 a year |
| Category for trees and turf | 3a Ornamental and Turf; 3b Interiorscape and 3c Nursery and Greenhouse are separate |
| Exam | Appointments through Pearson VUE; 70% to pass; US$92 for the core test, categories and service technician exams |
| Recertification | Five-year category schedule; 20 CEUs for 3a, or retest; US$50 by CEUs or US$92 by retest |
| Insurance or bond | Not less than US$50,000 bodily injury per person, US$100,000 bodily injury per occurrence and US$50,000 property damage; deductible not above US$5,000 |
| Reciprocity | Available under reciprocal agreements, US$100 per category |
Certification and licence are separate
The department's pesticides page says that a certification card is not a license to do pesticide work. A pesticide business license must be held by any certified applicator who wants to do commercial, non-commercial or consultant work, or by his or her employer. The license is needed to act, operate, do business or advertise. The licensing year runs October 1 to September 30 for company names beginning with a number or A to L, and January 1 to December 31 for M to Z, and all commercial and non-commercial applicators renew yearly. A service technician gets an identification card after passing the service technician exam, requested by the licensed employer at US$20 a card.
Fees
The same page lists a commercial business license at US$100 per category, to a maximum of US$500 a year. A non-commercial license is US$50 per category, to US$250. Examinations are US$92, covering the initial core test, categories and service technician. Each recertification is US$50 by continuing education units or US$92 by retest. A duplicate license or certificate is US$10, and reciprocal certification is US$100 per category.
The category that covers trees and turf
The department's CEU requirement table lists 3a Ornamental and Turf, 3b Interiorscape and 3c Nursery and Greenhouse, next to 2 Forestry, 6 Right-of-Way and 7a General Pest. Category 3a sits in the cycle that started in 2025 and expires in 2029.
Exam
Test sessions are scheduled at locations around Oklahoma and appointments are made through Pearson VUE. Photo ID is required, and exam handouts are provided at the site. The pass mark is 70% on any written exam. Study material comes from Oklahoma State University. Private applicators have their own US$62 exam and are not allowed to do commercial work or use restricted use pesticides in or around a residence.
Recertification
The department says each category recertifies on a five-year schedule that is the same for everyone in the category, not counted from the date a person was certified. A person who certifies in a category in the middle of a cycle recertifies in the year that category comes due. Recertification is by written test for each category or by collecting enough CEUs. The table gives 3a Ornamental and Turf 20 CEUs over five years, 3b 10 and 3c 15, with prorated amounts for people who join mid-cycle. CEUs earned in the year of certification do not count. Recertification begins on September 1 of the expiration year. Oklahoma State University and the department post approved CEU meetings.
Insurance
The page says a commercial applicator, apart from aerial applicators, must prove financial responsibility of not less than US$50,000 bodily injury, US$100,000 bodily injury per occurrence and US$50,000 property damage. The department's certificate of insurance form has the insurer state limits for general liability, notes that the insurance covers damage including chemical drift or trespass, and says a deductible must not exceed US$5,000. The insurer gives the department written notice within 15 days of a cancellation.
Reciprocity
The page says an individual certified in another state may be able to get certification in Oklahoma under a reciprocal agreement, at US$100 per category. It also describes a chart for sharing CEUs between states with such an agreement: credits earned in a course accredited by either state may be recognized to the extent that they meet the other state's requirements. The list of states is not on the pages read.
Sources
- Oklahoma Department of Agriculture, Food and Forestry, Pesticides: examinations, licensing and recertification, read October 8, 2026
- Oklahoma Department of Agriculture, Food and Forestry, CEU requirements by certification cycle, read October 8, 2026
- Oklahoma Department of Agriculture, Food and Forestry, Certificate of insurance for pesticide applicators, read October 8, 2026