Pesticide licence in Ohio: categories, exam and renewal

This page reports what the official source says. It is not legal advice: ask the office named here. The source is the Ohio Department of Agriculture, whose pesticide regulation pages cover commercial and private applicator licenses, direct supervision, pesticide businesses, dealers and recertification. The parent page, pesticide licences by country, has the national background.

At a glance

Item	What the department says
Agency	Ohio Department of Agriculture, Pesticide Regulation
License	Commercial Pesticide Applicator license
Categories for trees and turf	6a General Ornamental Pest Control; 8 Turf Pest Control; 6c Ornamental Weed Control
Exams	Commercial Core plus at least one category exam, offered at no cost
License term	One year, expiring September 30, renewed every year
Recertification	Every third year after first issue, by exam or by class credits
Business license	One year, expiring September 30, with a certificate of insurance on file

Who needs the commercial license

The department's commercial applicator page lists the cases: being hired to apply any pesticide to someone else's property, applying a restricted-use pesticide on an employer's property, applying any pesticide for a government agency including school districts, and applying any pesticide at schools and universities, parks, golf courses, restaurants, food plants, hospitals, day cares and apartment complexes with more than four units. To qualify, the page says an applicant passes the Commercial Core exam and at least one commercial category exam, then submits the application and pays the application fee. The page also states a minimum age of 18, effective January 1, 2027. The fee amount is not on the pages read.

Categories for trees and turf

The page lists use categories and their study materials. Category 6a, General Ornamental Pest Control, covers work against insects and diseases on outdoor ornamental plants and trees, and against weeds in outdoor ornamental areas such as landscape beds and tree and shrub plantings. It includes the weed category 6c. Category 8, Turf Pest Control, covers lawns, turf, sod and soil being prepared for turf, and also includes 6c. Category 6c, Ornamental Weed Control, is not needed with 5, 6a or 8. Other entries include 4a Forest Pest Control, 5 Industrial Vegetation Control for roadways and utility rights of way, and 3c Sewer Root Control for tree roots in sewer pipes. The page says category 2a on agronomic crops does not cover ornamental nursery stock or turf.

Exam

The exam registration page says written exams are offered at no cost at locations around the state throughout the year, proctored by department inspectors. An applicant can schedule up to two exam sessions with at least five business days between them, and each session can hold several tests. Study materials and printed or PDF manuals come from Ohio State University Extension publications and county Extension offices.

Renewal and recertification

The license is valid for one year and expires on September 30. The page says it is renewed every year, and that every third year after first issue it must be recertified first. A late renewal is possible until March 31 if all recertification hours were done before September 30. Recertification is either retaking the exams in year three or attending approved classes with these minimums: one hour of Commercial Core, half an hour for each licensed category, and the remaining time in any commercial category. Credits do not carry to the next cycle. The department has a credit lookup and a list of classes.

Pesticide business license and insurance

The business page says a pesticide business license is needed to apply pesticides for hire, to solicit pesticide application, or to do wood destroying insect inspections for a real estate sale. It says at least one Ohio-licensed commercial applicator must be employed for each licensed business location. The license is valid for one year and expires on September 30, and a current certificate of insurance or binder must be on file. The certificate carries a statement tying it to Ohio Administrative Code section 901:5-11-07, paragraph B for most businesses, with other paragraphs for wood destroying insect inspections and aerial work. A solicitation-only license needs no insurance, and the business holding it may not apply the pesticide itself.

The department's main pesticide page adds that restricted-use pesticides are limited to licensed private or commercial applicators, or a trained serviceperson under direct supervision of a licensed applicator.

Reciprocity

The page says an applicant who lives in and is licensed in another state may get a reciprocal Ohio license without an Ohio exam. The states listed are Alabama, Florida, Georgia, Illinois, Indiana, Louisiana, Michigan, Minnesota, Mississippi, New York, Pennsylvania, Texas, Virginia and West Virginia. The application includes a copy of a driver's license and the pesticide license from that state. Some recertification credits may also transfer, sent by the program sponsor.