Office of Indiana State Chemist - Pesticide Section
The pesticide section of OISC regulates the distribution and application of pesticides in the State of Indiana. The pesticide section is charged with the administration and enforcement of Indiana pesticide laws (I.C. 15-16-4 and I.C. 15-16-5) and also represents the U.S. Environmental Protection Agency (EPA) in Indiana for the purpose of enforcing many provisions of federal pesticide law.
The mission of the Office of Indiana State Chemist Pesticide Section is to protect the public and the environment by ensuring that pesticide products distributed within the state are properly formulated and labeled and that individuals who apply pesticides have met minimum competency standards, when required, and apply those pesticides without causing harm to people or property.
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Note: 2026 Renewal Applications were mailed October 17, 2025.
News:
- Private Applicator Recertification Program (PARP)
- 2025 Clean Sweep Dates now available!
- Dicamba Use in 2025
- Endangered Species Protection Program
- Bulk Storage & Containment Requirements for Fertilizers & Pesticides (pdf, 293kb)
- Direct Supervision of Noncertified Applicators Using Restricted Use Pesticides (pdf, 335kb)
- Training, Certification & Licensing Requirements for Indiana Pesticide Users (pdf, 318kb)
Certification and Licensing:
- Pesticide, Fertilizer Application & Distribution Licenses
- How to Search Your Records (pdf, 253kb)
- My Records/Exam Results/My CCHs
- Mandatory Annual Training Options for Non-Certified Applicators - Applying Restricted Use Pesticides
- Mandatory Training Options to become a Registered Technician - Applying General Use Pesticides
- Reciprocity
- Restricted Use Pesticide (RUP) Dealers
- Search Current License Holders, Dealers and Products
- Insurance Requirements for a Licensed Pesticide Business
- Supervision of Non-Certified Fertilizer Applicators
- Regulatory Requirements for Unmanned Aerial Vehicle (UAV) Pesticide Applicators (pdf, 226kb)
- Commercial Pesticide and Fertilizer - Applicators
- Pesticide Recordkeeping (pdf, 359kb)
- EPA Worker Protection Standards
- WPS Resources (source: Pesticide Resources)
Exams, Training Sessions and Study Materials:
Continuing Education (CCH) & Private Applicator Recertification (PARP):
Enforcement & Compliance Information:
- Filing a Pesticide/Herbicide or Fertilizer/Manure Complaint (pdf, 676kb) NOTE: Download this form before completing and submitting.
- Investigation Public Records Search
Pollinators:
- P3 (Pollinator Protection Plan) Activities
Publications and Access to Public Records:
- Requesting Public Records from the Office of Indiana State Chemist (OISC) and Purdue University: https://www.purdue.edu/legalcounsel/public/index.html
- Search OISC Regulated Client Databases and Completed Investigation Records: https://www.oisc.purdue.edu/pesticide/search_oisc_databases.html
- Annual Reports
- The Scoop Previous Editions
- Aquatic Vegetation Control Permits (source: IN DNR, pdf)
- Pesticide Investigator Territory Map - 2025 (pdf, 735kb)