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 Harrison Street Garage.
Our mailing address remains the same (175 S. University Street, West Lafayette, IN 47907-2063).

Pesticide Section - How do I Obtain a Pesticide Business License (PBL)?
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Obtaining a Pesticide Business License (PBL)



Any person (individual, partnership, corporation, etc.) who applies pesticides (or fertilizers to ag fields or turf) for hire to the property of another or who advertises that they apply pesticides (or fertilizers to ag fields or turf) for hire must obtain a business license from the Office of Indiana State Chemist (OISC). To obtain a pesticide business license, a firm must:

  1. Employ at least one certified applicator. A business license and an applicator license are separate and distinct. An applicator license can be issued only to a certified applicator.

    View details on becoming a certified and licensed applicator

  2. Submit a completed application form (one application is used for both the business license and the applicator license).

    View the license application form  (pdf, 58kb)

  3. Submit a certificate of insurance for Pesticide use only (not fertilizer).

    View details on insurance requirements