The HHS Office for Human Research Protections (OHRP) supports, strengthens and provides leadership to the nation's system for protecting volunteers in research that is conducted or supported by the U.S. Department of Health and Human Services (HHS). OHRP provides clarification and guidance to research institutions, develops educational programs and materials, and promotes innovative approaches to enhancing human subject protections. (http://www.hhs.gov/ohrp/)
In addition, OHRP is the lead federal agency for the Common Rule (45 CFR 46 Subpart A) that is used by most federal agencies for protecting volunteers in research that is conducted or supported with federal support.