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United States · Certification exam

Ohio pesticide applicator license

You pass a core exam and at least one category exam, set by the Ohio Department of Agriculture (ODA), and then pay ODA for the license. ODA says all exams are free, multiple choice and not open book. The Ohio pesticide applicator license is commercial or private, and Ohio State University (OSU) Extension, which ODA names as its trainer, sells the study guides.

  • FreeFee for the exams
  • 1 yearHow long a passed exam counts
  • 5 business daysWait before you retest
Read the commercial application

Updated October 2026 · Written from official sources, listed at the bottom of this page

Commercial or private in Ohio

  • Commercial applicator: OSU describes this as applying for hire, on publicly accessible sites such as golf courses, apartment complexes, restaurants and schools, or for a government agency. Commercial applicators need a license for both restricted and general use products.
  • Private applicator: restricted use pesticides on your own or rented land, to produce an agricultural commodity.
  • Pesticide business license: for firms that apply to the property of another for hire.

How do you get an Ohio pesticide applicator license?

  1. Buy the study materials from OSU Extension: commercial study guides from the OSU Extension Publications store, private materials from a county extension office or the OSU e-Store.
  2. Commercial applicators send ODA the license application with the $35 fee first; ODA’s form says the application is valid through September 30 of that licensing year, so you pass within that period. Private applicators can apply after they pass.
  3. Register with ODA for an exam date and site, online or by phone. Seats are limited, so register ahead, and bring a photo ID.
  4. Pass the core exam and at least one category exam (not the fertilizer exam).

OSU says that after January 1, 2027 you must be 18 years old to take the private applicator exam.

Ohio license fees and periods

LicenseFeePeriod
Commercial applicator$35October 1, 2026 to September 30, 2027
Private applicator$30April 1, 2026 to March 31, 2029
Pesticide business$35Not listed

Commercial applicators pay the $35 every year and are certified for three years. Private applicators are certified for three years.

Recertification hours in Ohio

You keep your certification by retaking the exams in the third year or by earning recertification hours: at least 1 hour of core, half an hour in each category on your license, and 5 hours in all for commercial or 3 hours for private applicators. Private recertification sessions are offered only by OSU Extension. Fertilizer training doesn’t count toward pesticide hours.

OSU Pesticide Safety Education Program: Commercial applicators ↗OSU Pesticide Safety Education Program: Private applicators ↗OSU Extension: Ohio commercial applicator study guides ↗
Sources: ODA · OSU Pesticide Safety Education Program and 3 more. Checked October 2026.

Rules and fees can change, so check the official site before your test.

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