A privacy and security notice communicates the conditions under which a system may be used, telling the people using it what they are accessing and what expectations apply.

The wording depends on the CUI rules that apply to you and on your own policies. A notice may say that access is restricted to authorized users, that activity may be monitored, or that information must be handled according to applicable requirements. NIST does not script it for you. Rev 2 says organizations consult the Office of General Counsel for legal review and approval of banner content, which is government phrasing: for a contractor it means appropriate legal review, whether that comes from in-house counsel, outside counsel, or whoever owns legal risk for the business.

The notice communicates expectations. Your technical controls, policies, and training put them into practice. It is not a substitute for access control, for CUI training, or for the protections themselves.

The familiar mechanism is a banner shown before someone logs in, which is how Rev 2 describes system use notifications. Showing it before access is worth doing wherever the system supports that: once someone is inside, the moment has passed. What the requirement asks is that the right notice reaches people at a meaningful point of access, through whatever mechanism fits.

Rev 2 is specific about scope: system use notifications are used only for access via logon interfaces with human users, and are not required when such human interfaces do not exist. Where there is no interactive interface, decide from how the system is accessed and which CUI rules govern it whether another notice applies. If one does, it comes from those other obligations rather than from the system use notification this requirement describes. Rev 2 also says organizations consider, based on a risk assessment, a secondary notification for applications reached after the initial logon. That is a risk-based decision rather than a universal requirement, and some environments will conclude they do not need one. Printed materials may stand in where an automated banner is impractical.

Make sure the right notice reaches people at the point of access. That’s the whole idea.

Here is the order I would work through it in a real environment:

The configuration is usually straightforward. The work is deciding what the notices have to say, getting that language approved, and keeping it current as rules and systems change.

A sustainable implementation has three pieces: people who own the language and its deployment, technology that presents it where people access systems, and documentation recording what was approved and where.

Two things keep this working: the notices say what the rules require, and people actually receive them.

Start once you know which CUI rules apply to your contracts, because those rules drive the wording. Draft the language, get it reviewed and approved, then deploy it to the interfaces people use. Approval takes longer than configuration, so begin the review early rather than treating this as a setting to flip at the end.

An employee reaches a system and receives the notice for that environment, stating the authorized-use and monitoring conditions the organization established, and proceeds knowing what applies. When a new access method arrives, or the rules change, the team checks whether the notices still fit.

An organization doing this well can usually answer yes to all of these:

If any answer is no, that’s your next place to start.

This requirement communicates; others enforce. Keeping that line clear is the useful part:

• Awareness & Training (3.2): training teaches people their responsibilities; the notice reinforces them at the point of access.
• Access Control (3.1): those requirements decide who can reach a system; the notice states the conditions that apply once they do.
• Audit & Accountability (3.3): if the notice says activity may be monitored, that should match what your logging does.
• CUI handling policies: your CUI marking, storage, and sharing policies are where much of the content comes from, so settle those before the wording.