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The Center for Environmental and Regulatory Information Systems (CERIS) is proud to introduce a new launching pad for the National Pesticide Information Retrieval System (NPIRS) program.

CERIS is a center located at Purdue University under the College of Agriculture within the Department of Entomology. All CERIS projects contribute to Purdue’s mission as a land-grant institution, and mutually benefit from lower operational costs and shared technical expertise. CERIS is home to a wide collection of information databases on pesticides, plant export/import requirements, and exotic pest tracking that use secure website-based subscription programs for exchanging pesticide-related information between federal and state regulatory agencies and various organizations responsible for registration and retrieval of various common data. The data is received or derived principally from the United States Environmental Protection Agency (EPA), United States Department of Agriculture (USDA), and United States State Agencies.

NPIRS subscribers are provided information to assist in reviewing and registering pesticides and developing marketing strategies based on currently registered products and pending registrations available through our Federal and State Agency partners. The Accepted Label State Tracking and Repository (ALSTAR) is focused on the rigorous exchange of information between registrant organizations and participating state regulatory agencies to better expedite information in the process of registering new and existing products to be sold in the various channels of trade within the United States of America.

CERIS has been at the forefront since 1982 servicing the needs of such a diverse user community and always striving to improve the user experience. Currently, we help over 300 active organizations across 35 participating states in the program to streamline and enhance production over the arduous task of registering and maintaining a repository of pesticide-related information. We are always looking to expand the user experience and are delighted in having you here as our partner.


PPIS/State Public








Address: 1435 Win Hentschel Blvd, Ste. 215, West Lafayette, IN 47906-4161 Phone: 765-494-5249 E-mail: npirs@purdue.edu


The NPIRS subscription site has completed an important system upgrade that utilized the best technology available to shape your needs for tomorrow. This upgrade occurred on April 1, 2023. To access the improved subscription site organization administrators or billing personnel will need to confirm a NEW tiered billing structure.  
Once a tier has been confirmed ALL USERS will need to set up a CAS login account by following the steps identified by clicking on the “Login Help” link in the upper right corner of this page. 
*** Please note that if you already have a CAS login account you will not need to reset your CAS account information and should be able to log in. ***