The Office of Indiana State Chemist is temporarily located in AGAD (615 W. State Street, Room 18, West Lafayette, IN 47907).
Visitor paid parking is available in the Grant Street Garage and the Harrison Street Garage.
Our mailing address remains the same (175 S. University Street, West Lafayette, IN 47907-2063).


The Office of Indiana State Chemist is closed from December 24, 2025 to January 4, 2026 and will reopen on January 5, 2026. Our office and staff will not be available during this period of time.
Please explore our website for answers to questions that may be of a general nature, or you may contact the Office with any questions on or after January 5th, and we will gladly assist you.
Best wishes for a successful holiday season and New Year 2026!


OISC - Office of Indiana State Chemist Home Page
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Welcome to the Office of Indiana State Chemist


The Indiana State Chemist is charged with administering several agricultural laws involving animal feeds, fertilizers, pesticides and seeds. The goals of these laws are to ensure truth-in-labeling, food safety, user safety and the protection of our environment.




Latest News, Alerts and Other Information:

 

  1. Private Applicator Recertification Program (PARP)
  2. HPAI Virus and its impact on Raw Milk (pdf, 275kb)
  3. Seed Service Information Form - 06/07/23   (pdf, 301kb)
  4. How to Search Using My Records (pdf, 379kb)
  5. Dicamba information
  6. Filing a Pesticide/Herbicide or Fertilizer/Manure Complaint (pdf, 676kb) NOTE: Download this form before completing and submitting.
  7. Follow us on Twitter!
    - Seed (IndianaStateChemSeed - @IndianaChemist)
    - Feed (IndianaStateChemFeed - @IndianaChemFeed)
  8. Indiana Hemp Program Information
  9. Fertilizer Use Information Sheet  (pdf, 235kb)
  10. OISC Mission Statements
  11. OISC Inspectors (Feed, Fertilizer and Seed)
  12. OISC Pesticide Investigators and their territories (pdf, 735kb)
  13. Chemical Facility Anti-Terrorism Standards (CFATS) Continued Outreach