System Security Plan
The plan an assessor reads. System identification, boundary, architecture, interconnections, CUI types, and users, then every one of the 110 requirements with its SPRS value and POA&M eligibility, a worked implementation statement with bracketed placeholders, the assessment objectives paraphrased from NIST SP 800-171A, and the evidence to attach. A continuous monitoring schedule, POA&M summary, approval page, and Not Applicable appendix close it. About 25,000 words.
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