The College of American Pathologists (CAP) stands as the world's leading organization of board-certified pathologists, serving patients, pathologists, and the public by fostering and advocating excellence in the practice of pathology and laboratory medicine worldwide. Founded in 1946, CAP represents more than 18,000 physician members and operates the largest laboratory accreditation program globally, helping laboratories ensure accuracy, reliability, and excellence in patient care.
CAP provides comprehensive solutions for laboratory quality improvement through accreditation, proficiency testing, education, and guidelines. The organization accredits laboratories worldwide through its peer-based inspection model, maintaining standards that often exceed regulatory requirements. CAP also develops cancer protocol templates used globally for complete reporting of malignant tumors, ensuring optimal patient care. Through its advocacy work, education programs, and commitment to advancing pathology practice, CAP continues to shape the future of laboratory medicine and diagnostic excellence.