Operated by the US Department of Health and Human Services, the Agency for Health Care Policy and Research (AHCPR), the American Medical Association (AMA) and the American Association of Health Plans (AAHP), The National Guideline Clearinghouse provides information about hundreds of "evidence-based clinical practice guidelines" for health care professionals. Guidelines from over 100 different medical organizations can be searched or browsed by disease or condition; treatment or intervention method; or issuing organization. Each record includes the date of release and current status of the guideline, major recommendations for interventions and practices, organization(s) and committee members responsible for the guideline, and methods used to collect evidence and rate the quality of evidence. A link to the full text of the guideline is provided if available. When more than one guideline has been released on a topic, users can compare selected guidelines in chart format. A News section tells developers how to submit guidelines to the Clearinghouse.