March 20, 2023

Reminder: Revisions to Indiana pesticide regulations

New laws start this year

WEST LAFAYETTE, Ind. — Indiana has made several changes to state pesticide regulations. Under the revised rules, only fully certified applicators will be allowed to use restricted-use products.

Supervision of non-certified applicators or registered technicians using RUPs will no longer be allowed.

This new restriction will apply to both private and commercial applicators. The standards to become certified will remain unchanged.

Supervision of GUP Applicators

Commercial applicators using general-use pesticides will still be required to be fully certified. Those commercial applicators can still supervise non-certified GUP applicators.

Commercial applicators supervising for-hire GUP applications may do so by either being physically present at the work site or by ensuring the non-certified applicator is a registered technician.

Under the revised rules, there are now three options to become an RT, including:

1. Pass the Core exam;

2. Attend a full-day Core training with no exam; or

3. Attend a half-day RT training with no exam.

All trainings are provided by Purdue Pesticide Programs. Get details at

Record Keeping

Applicators must note a start and stop time for each application.

Several other record-keeping items have been added including: the agency that issued the applicator’s certification, if not OISC; the applicator’s certification category; any state registration number for a state special local need or emergency exemption product; and a signature or confirmation documentation for the person ordering or receiving the product.

A summary of the record-keeping requirements is available at

Erica Quinlan

Erica Quinlan

Field Editor