The OHRP also provides "Guidance". Guidance exists to assist in interpretation of regulations in some subject areas. Other subject areas may have partial guidance, or none at all.
Federal Regulation Policy and Guidance
L. U.S. Department of Justice (28 CFR Part 512.11), Requirements for Research and Researchers
M. U.S. Department of Veterans Affairs (38 CFR 17.85) 85 - Treatment of Research-Related Injuries to Human Subjects