- One policy set following the catalog's family structure is easier to maintain and assess than dozens of freestanding documents; procedures belong closest to the teams that execute them.
- Write policy to match what the organization actually does — an aspirational policy that operations contradicts reads worse in an assessment than a modest one that is true.
- Set the review frequency, put it on a calendar, and name an owner; the review-and-update half of this requirement is the part that silently lapses.
03.15.01 — Policy and Procedures
03.15 Planning · NIST SP 800-171 Rev. 3
Develop, document, and disseminate to designated personnel or roles the policies and procedures needed to satisfy the security requirements for protecting CUI, and review and update them at organization-defined frequencies.
Rev. 3 requirement text is multi-part and parameterized with organization-defined values, so this site summarizes rather than reproduces it. The summary is independent — read the official publication for the binding wording.
NIST SP 800-171 Rev. 3 — Protecting CUI in Nonfederal Systems ↗NIST SP 800-171A Rev. 3 — Assessing Security Requirements for CUI ↗What this requirement is after
Rev. 2 assumed policies existed; Rev. 3 asks for them. Every family in this catalog now expects a written statement of what the organization requires and a procedure for how it happens, reviewed on a cadence — because implementations drift, and an implementation nobody wrote down cannot be handed to the next person or checked by anyone.
New as a standalone requirement — Rev. 2 contained no explicit policy requirement, leaving governance documentation implied. Rev. 3 makes it assessable in its own right.
Brilliant at the Basics practices that support this requirement
The campaign’s twenty practices are a priority list, not a control catalog, and none of them works this requirement’s substance directly. It still applies to you if it is in your contract’s scope: address it through your own implementation and the related artifacts below, and treat the absence of a mapping here as honesty, not permission to skip it.
Implementation considerations and evidence
- The policy and procedure set with version history and dissemination records
- Dated review records showing the defined frequency is honored
Suggested owners, derived from the mapped practices and artifacts: IT leader. Ownership is a named person in your organization, not a role on a website.
Templates and worksheets with a mapped relationship
Where this came from in Rev. 2
No direct Rev. 2 counterpart — this requirement is new in Rev. 3. Open the transition crosswalk →
Sources and review status
| Primary sources | NIST SP 800-171 Rev. 3 — Protecting CUI in Nonfederal Systems · NIST SP 800-171A Rev. 3 — Assessing Security Requirements for CUI |
|---|---|
| Review status | Pending NIST SME review |
| Content version | 1.0 |
| Updated |