Center for Outcomes and Evidence Agency for Healthcare Research and Quality
5600 Fishers Lane
Rockville, MD 20857
The National Guideline Clearinghouse (NGC) is a public resource for evidence-based clinical practice guidelines. NGC is an initiative of the Agency for Healthcare Research and Quality (AHRQ), U.S. Department of Health and Human Services. NGC was originally created by AHRQ in partnership with the American Medical Association and the American Association of Health Plans (now America’s Health Insurance Plans [AHIP]). Hours of operation: 8:30 a.m.–5:00 p.m., Monday–Friday (eastern time, except Federal holidays).