Fertilizer is defined as any dry or liquid formulation containing nitrogen, phosphorus, potassium, or other plant nutrient. Manure and lime are exempt unless mixed with fertilizer materials or distributed with a guaranteed analysis. Fertilizer applied through a planter at planting is exempt, but all other application types and timings (broadcast, side dress, subsurface, knifing, etc.) are included.
Uncertified applicators may apply fertilizer in the situations outlined above if acting under the instruction and control of a certified applicator. An uncertified applicator must be:
You are exempt from certification if you:
Certified livestock managers (CLM) and certified crop advisors (CCA) are required to hold a fertilizer certification but are exempt from the training or examination requirement. CLMs and CCAs must contact the Ohio Department of Agriculture (ODA) to obtain the certificate.
If you are uncertain about whether you need the fertilizer certification, contact ODA for clarification.
The first step to becoming certified for agricultural fertilizer applications is done in one of two ways:
Contact your county OSU Extension office for three-hour meeting dates or check online at nutrienteducation.osu.edu. Most of the three-hour fertilizer certification meetings are offered in January through March. The training focuses on the 4 Rs of nutrient management: right source of nutrients, right rate, place, and right time.
The next steps to becoming certified for agricultural fertilizer applications depend on whether you hold a current pesticide license.
Fertilizer certification expires every three years. The deadline varies depending on if you have a pesticide license, and if you are a private or commercial certificate holder.
For pesticide applicators, the fertilizer certification deadline synchronizes with the private (March 31) or commercial (Sept. 30) pesticide recertification deadlines. If you have no pesticide license, the expiration date is March 31.
To recertify, you must either attend a one-hour fertilizer recertification program or retake the fertilizer exam by the recertification deadline. Contact your county’s OSU Extension office for recertification programs near you or check online at nutrienteducation.osu.edu. Most fertilizer recertification meetings are offered in January through March.
If you maintain a pesticide license, there is no additional fee for fertilizer certification, but you must satisfy the pesticide and fertilizer recertification requirements and pay the pesticide license fee to maintain a valid license/certificate.
Fertilizer applicators who do not hold a pesticide license will receive a $30 invoice and a renewal application from ODA every three years prior to the expiration of their fertilizer applicator certificate.
Applications must be recorded within 24 hours of the application and maintained for three years by the certified applicator. Records must contain:
There is no standard format, but the record must contain all items listed. Records must be available to ODA upon request.
There is an affirmative defense for private civil action against a fertilizer applicator when three conditions are met:
There are additional regulations affecting fertilizer and manure applications to snow-covered, frozen, or saturated soils in the Lake Erie western basin watershed. See nutrienteducation.osu.edu for more information.
For questions about study guides, recertification, and training opportunities, contact:
Pesticide Safety Education Program
Ohio State University Extension
Phone: 614-292-4070
Email: pested@osu.edu
Website: pested.osu.edu
For questions about certification and exams, contact:
Ohio Department of Agriculture
Phone: 614-728-6987
Email: pesticides@agri.ohio.gov
Website: agri.ohio.gov