The documents an SP 800-53 program runs on: the system security and privacy plan, plan of action and milestones, assessment report, policies and procedures, and agreements for information exchanges.
What a system security and privacy plan must contain under SP 800-53: the PL-2 elements, approval by the authorizing official, documenting tailoring and inherited controls, the SP 800-18 guidance and producing the plan in OSCAL.
How a POA&M works under SP 800-53: what CA-5 requires, which baselines include it, who approves it, what assessors examine, and why FedRAMP handles weaknesses through its own vulnerability and corrective action rules rather than listing CA-5.
What goes into the assessment report an authorizing official relies on: CA-2 assessment requirements, SP 800-53A determination statements and satisfied or other-than-satisfied findings, depth and coverage, and when a comparable report can be used instead.
Which policies and procedures SP 800-53 requires: the -1 control that opens 19 families, the program plan that opens PM, how Release 5.2.0 updated them, and how one policy set maps to NIST CSF and SP 800-171.
Documenting connections and data exchanges with other systems under SP 800-53: CA-3 information exchange requirements, interconnection security agreements and memoranda of understanding, SP 800-47 Rev. 1, and authorizing official approval of agreements.
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