The AAHA Standard AAHA is an organization that accredits veterinary practices for upholding a simple standard: excellence in everything you do. Because that is such a high standard, fewer than 15% of veterinary practices across the United States earn accreditation. We are proud to be one of the few, as it demonstrates our belief that your pet is truly family, and deserves the best care there is. Because when it comes to your pet, only the best will do.