The National Pesticide Information Retrieval System (NPIRS) is a collection of six pesticide-related databases available through subscription to the Center for Environmental and Regulatory Information Systems (CERIS) at Purdue University. The Pesticide Product database contains label information obtained from the U.S. Environmental Protection Agency on over 88,000 active, canceled, transferred, and suspended pesticide products. In addition, state pesticide registration data is available from 39 states. The Pesticide Document Management System (PDMS) contains bibliographic citations of documents submitted to EPA in support of pesticide registration. Other databases include EPA Chemical Fact Sheets, pesticide residue tolerance information, C& P Press Material Safety Data Sheets, and a Federal Register archive of over 115,000 documents.