Limonene And Its Uses United States Prevention, Pesticides EPA-738-F-94-030 Environmental Protection And Toxic Substances September 1994 Agency (7508W) Pesticide Reregistration All pesticides sold or distributed in the United States must be registered by EPA, based on scientific studies showing that they can be used without posing unreasonable risks to people or the environment. Because of advances in scientific knowledge, the law requires that pesticides which were first registered years ago be reregistered to ensure that they meet today's more stringent standards. In evaluating pesticides for reregistration, EPA obta