The license attaches to the location, not to the company. Section 921.09 of the Revised Code requires a separate pesticide business license for each business location used in pesticide operations, and a company headquartered outside Ohio that applies pesticides for hire in the state licenses its principal out of state location plus every Ohio location it runs. Each location needs at least one Ohio licensed commercial applicator working there. A copy of the license has to be kept and displayed at each location, and an address change goes to the director within fifteen days.
The business license itself is $35 and expires annually on September 30, with each additional Ohio location or branch registered at $35. Filed with the application is a current certificate of insurance or binder showing the coverage. Two narrow exemptions exist from the insurance filing, for businesses whose only work is seed treatment or boat antifoulant application, which is a reminder that the rule was written to cover application to other people's property rather than every use of a pesticide.
The certificate has to carry a specific cancellation clause. The insurer must agree to notify the Ohio Department of Agriculture ten days prior for a cancellation arising from nonpayment of premium, and to give thirty days written notice for any other cancellation or material change. That obligation sits on the carrier rather than on you, which means an agent who issues a plain certificate without the endorsement has handed you a filing the department can reject.
On the individual side, a commercial applicator pays $35 to apply and $35 to renew annually, also expiring September 30. Ohio runs twenty six commercial categories covering aerial, agricultural, aquatic, forest, ornamental and turf, structural, health related and industrial vegetation work, plus wood destroying insect diagnostic inspection as its own category. Every applicator holds Core plus at least one category. Exams run from twenty five to a hundred and fifty questions depending on category, passing is seventy percent, and a failed exam carries a one week wait before you sit it again. Recertification comes every three years, either five hours of approved training built as one hour of core plus a minimum of thirty minutes per category, or retaking the core and category exams. Unlicensed trained servicepersons may apply pesticides under the direct supervision of a licensed applicator provided they receive safety training before their first exposure, which is how most Ohio companies staff a route while new hires work toward a license.