College of American Pathologists
With more than 18,100 members, the College of American Pathologists (CAP), headquartered in Northfield, Illinois, is the world’s largest association composed exclusively of board-certified pathologists certified by the American Board of Pathology, the Royal College of Physicians and Surgeons of Canada, the American Osteopathic Board of Pathology, or other certifying body approved by the CAP Board of Governors, and pathologists-in-training. It is widely considered the leader in laboratory quality assurance and advocates for high-quality and cost-effective medical care.