On May 1, 2026, DATCP notified dairy producers and veterinarians of updated guidance from the U.S. Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS). Accordingly, lactating dairy cattle moving interstate from states designated with Unaffected State Status under USDA's National Milk Testing Strategy (NMTS) are no longer required to test for HPAI prior to interstate movement. 

Wisconsin currently meets the criteria for Unaffected State Status through ongoing surveillance and testing activities conducted under the NMTS. As a result, lactating dairy cattle moving interstate from Wisconsin are not currently subject to the federal pre-movement testing requirements established under USDA's April 2024 Federal Order.

Wisconsin also had a state order in place requiring individual cow HPAI testing prior to attending fairs and exhibitions in Wisconsin. This order has been rescinded. Lactating dairy cows attending Wisconsin fairs and exhibitions are no longer required to have an individual HPAI test unless they are coming from a state without Unaffected State Status under NMTS.