Aprofession is characterized by skill based on a unique body of knowledge, a code of ethics, and a social contract with society or government that grants it a certain degree of autonomy in exchange for self-regulation. The responsibilities of self-regulation in the medical profession are complex and involve many levels of oversight aimed at guaranteeing the continuing competence of practicing physicians. Today, professional associations in the United States play a significant role in upholding the ethical, educational, scientific, and practice standards of the medical profession. In reproductive medicine, as in other fields of medicine, highly respected physicians participate in accreditation, certification, and membership organizations that promote quality and protect patient.