The IR-4 program is a nationwide cooperative effort which aids in the development of data required for the registration of animal drugs, biologic pest control agents and pesticides required for minor or specialty uses. Headquartered at Rutgers University, New Jersey, it supports regional offices at four locations across the country. The Southern Region Leader Laboratory, located at the University of Florida, Gainesville, coordinates the research and data collecting aspects of IR-4 in thirteen states plus Puerto Rico and the Virgin Islands. Registration needs identified by researchers, growers and other users are brought to the attention of IR-4 and protocols are written to outline research required for eventual registration. IR-4 supports scientific research at Universities, State Experiment Stations and USDA facilities and develops data into a registration package. It usually requires two years from the time a request is presented to IR-4 until ultimate registration