The Federal departments and agencies that were signatories to the proposed Common Rule, published on September 8, 2015, at 80 FR 53933 and HUD, through this proposed rule (collectively the Federal Agencies) are proposing revisions to modernize, strengthen, and make more effective the Federal Policy for the Protection of Human Subjects that was promulgated as a Common Rule in 1991. The Federal Agencies seek comment on proposals to better protect human subjects involved in research, while facilitating valuable research and reducing burden, delay, and ambiguity for investigators. The September 2015 proposal is an effort to modernize, simplify, and enhance the current system of oversight. The Federal Agencies propose these revisions to the human subjects regulations because they believe these changes would strengthen protections for research subjects while facilitating important research.