The Center for Biological Diversity sued the U.S. Fish & Wildlife Service, alleging that the agency’s failure to protect imperiled species from harmful pesticides violates the Endangered Species Act. The suit, which is pending in the U.S. District Court for the District of Arizona, seeks declaratory and injunctive relief, including an injunction against the further use of chlorpyrifos and diazinon on lands within the jurisdiction of the Department of the Interior and Fish & Wildlife Service. In 2017, the Environmental Protection Agency determined that use of these pesticides is likely to adversely affect 1,778 protected species (97% of species analyzed).