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!
The following information deals with US EPA's Worker Protection Standard (WPS) which went into full effect on January 1, 1995. Anyone who uses pesticides in the production of an agricultural plant on farms, forests, nurseries or in greenhouses and employees agricultural workers or pesticide handlers must comply with the WPS. This is intended to be used as an outline and does not fully address the WPS. Total compliance will best be achieved by following the US EPA's "How to Comply Manual" [source: EPA]. Additional information can be found on the US EPA website.
Covered Uses:
Growing an agricultural plant on a:
Non WPS Uses:
Protection for Workers and Handlers:
Still confused? If you have questions or concerns about WPS, contact Adam Brockman of the Office of Indiana State Chemist at 765-494-1585 or by e-mail at: atbrockm@purdue.edu.