FISMA & NIST RMF
NIST SP 800-53 Revision 5
NIST Special Publication 800-53 Revision 5, the catalog of 1,007 security and privacy controls organized into 20 families that federal information systems use to satisfy FISMA. Revision 5 was published September 2020 and integrated privacy controls into the security catalog for the first time, added a Supply Chain Risk Management family, and reframed many controls in outcome-based language. It is the technical baseline for FedRAMP, FISMA, and most agency Risk Management Framework implementations.