American College of Veterinary Surgeons (ACVS)
A veterinary surgeon is a veterinarian who completed additional training after veterinary school and was certified as a specialist in veterinary surgery by the American College of Veterinary Surgeons (ACVS).
https://www.acvs.org/what-is-a-veterinary-surgeon/
American Board of Veterinary Practitioners (ABVP)
Board-certified practitioners are experts in their field and have completed advanced training that sets them apart.