As the leading pathology organization with more than 18,000 board-certified pathologist members, the College of American Pathologists (CAP) serves patients, pathologists, and the public by fostering and advocating excellence in the practice of pathology and laboratory medicine. The CAP’s Laboratory Improvement Programs, initiated 65 years ago, currently has customers in more than 100 countries, accrediting 7,700 laboratories and providing proficiency testing to 20,000 laboratories worldwide.