American Board of Orthopaedic Surgery (ABOS)
https://www.pearsonvue.com/us/en/abos.htmlFounded in 1934 as a private, voluntary, nonprofit, autonomous organization, the American Board of Orthopaedic Surgery (ABOS) exists to serve the best interest of the public and the medical profession by establishing educational standards for orthopaedic residents and by evaluating the initial and continuing qualifications and competence of orthopaedic surgeons.