If you have been provided guidance from a clinical veterinarian about an animal procedure that may differ from your IACUC approved protocol, you can follow the guidance without IACUC approval. This is part of established veterinary consultation and authority practices. Please ensure that the guidance came from a clinical veterinarian and/or a designee of the Attending Veterinarian. Any protocol deviations and/or modifications that were not approved under veterinary authority must be approved by the Duke IACUC via a protocol amendment prior to implementation of the change, regardless of the reason for the proposed change. If you have an urgent need please contact OAWA.