1. Classify the material, site, and work

Begin with the actual product and proposed use—not the aircraft. Wisconsin DATCP describes pesticides as substances labeled to control pests, including herbicides, insecticides, fungicides, and rodenticides. Fertilizers and soil or plant additives follow related but distinct state frameworks.

Record the product name and registration details, target pest or intended purpose, crop or site, who controls the property, whether the work is for hire, and whether the product is restricted use. Those facts drive the certification, licensing, label, and business questions.

2. Obtain certification in the correct category

DATCP certifies pesticide applicators after they pass examinations. Its commercial-applicator page says Wisconsin has multiple commercial certification categories and that an applicator may need more than one depending on the work performed.

Certification is category-specific evidence of examination; it is not by itself current permission to make every application. Use DATCP's current training and testing instructions, then verify the certification in the state lookup before relying on it operationally or in public claims.

3. Complete the individual and business licensing layers

For a Wisconsin commercial for-hire application, DATCP currently identifies three prerequisites: certification in the applicable category, an Individual Commercial Applicator License, and employment by or ownership of a business holding a Pesticide Business License. DATCP explicitly says applications cannot begin until all three requirements are in place.

Certification and licensing renewal cycles differ. Confirm current status for the individual and the business before each operating season and before publishing credential language. Private, not-for-hire, government, education, and Indian-country work can follow different requirements; use the matching DATCP and EPA pathway.

4. Treat the product label as a mission constraint

EPA explains that pesticide labels communicate where, how, how much, and how often a product may be used, along with precautions and restrictions. A licensed applicator and authorized aircraft still cannot turn an off-label use into a lawful one.

Review the complete current labeling for the exact product and use. Confirm the crop or site, target, application method, rate, timing, wind or weather restrictions, buffers, personal protective equipment, worker-protection directions, storage, disposal, and recordkeeping that apply. Stop when the proposed drone method or field condition cannot meet the label.

5. Add the drone and federal aviation layer

DATCP publishes a drone-specific pesticide application fact sheet, while the FAA directs covered dispensing operations through its Part 137 UAS pathway. State applicator credentials do not replace FAA flight and agricultural-aircraft authority, and FAA authority does not replace state credentials or label compliance.

Verify the pilot, aircraft registration, applicable operating rule, exemptions, Agricultural Aircraft Operator Certificate, airspace, and every condition and limitation for the proposed mission. Match all approvals to the actual legal person or entity, aircraft, and operation.

6. Use a written mission-release record

Before loading product, create a release record tying the mission to current evidence: applicator certification and license, business license, product and label version, site and permission, required notifications, aircraft and FAA authority, weather and field conditions, crew roles, emergency controls, and the go or no-go decision.

Keep public claims narrower than the evidence. Saying a business is certified when only an individual passed an exam, or saying an operator is licensed without checking renewal status, can mislead customers. DATCP provides separate lookup tools for certified applicators, licensed applicators, application businesses, and registered products.

Submit field and application details for a Wisconsin Aerial mission-fit review; a request is not an acceptance or compliance determination.