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 - Supervision of Non-Certified Fertilizer Appilcators
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Supervision of Non-Certified Fertilizer Applicators




  1. All for-hire fertilizer use (application, handling, transporting) and all use of manure from a Confined Fertilizer Operation (CFO) must be performed by certified and licensed applicators or by trained employees working under the direct supervision of a certified and licensed supervisor.

  2. Direct supervision of non-certified fertilizer applicators may be accomplished by the certified applicator:

    1. Ensuring the non-certified employee has received OISC-approved training. View Training Requirements for Non-certified Employees Using Fertilizer Materials for Agricultural Crop Production  (pdf, 35kb);

    2. Keeping a record of the employee training;

    3. Providing the employee with equipment and instructions to:

      1. contact the supervisor; and

      2. contact IDEM to report spills;
    4. Making employee work assignments; and

    5. Knowing status of work assignments.