Karnal Bunt; Addition and Removal of Regulated Areas in Arizona

We are amending the Karnal bunt regulations to make changes to the list of areas or fields regulated because of Karnal bunt, a fungal disease of wheat. We are adding certain areas in Maricopa and Pinal Counties, AZ, to the list of regulated areas either because they were found during surveys to contain a bunted wheat kernel, or because they are within the 3-mile-wide buffer zone around fields or areas affected with Karnal bunt. We are also removing certain areas or fields in Maricopa County, AZ, from the list of regulated areas based on our determination that those fields or areas meet our criteria for release from regulation. These actions are necessary to prevent the spread of Karnal bunt to noninfected areas of the United States and to relieve restrictions on certain areas that are no longer necessary.