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PS-3(1) PS · Personnel Security

Classified Information

LOW MODERATE HIGH
1 Overlay 2 Related Controls
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Requirements NIST SOURCE

Verify that individuals accessing a system processing, storing, or transmitting classified information are cleared and indoctrinated to the highest classification level of the information to which they have access on the system.

Discussion (NIST Supplemental Guidance)

Classified information is the most sensitive information that the Federal Government processes, stores, or transmits. It is imperative that individuals have the requisite security clearances and system access authorizations prior to gaining access to such information. Access authorizations are enforced by system access controls (see AC-3 ) and flow controls (see AC-4).

Implementation Guidance

Engineering Interpretation

Original engineering commentary written for this explorer — not NIST source text and not authoritative guidance.

No engineering interpretation has been authored for PS-3(1) yet. This section is architected to receive it — see the Requirements and Assessment sections above for the authoritative NIST source content in the meantime.

Assessment

NIST SP 800-53A REV 5.2.0

Assessment Objectives

  1. individuals accessing a system processing, storing, or transmitting classified information are cleared;
  2. individuals accessing a system processing, storing, or transmitting classified information are indoctrinated to the highest classification level of the information to which they have access on the system.

Examine

[SELECT FROM: Personnel security policy; procedures addressing personnel screening; records of screened personnel; system security plan; other relevant documents or records].

Interview

[SELECT FROM: Organizational personnel with personnel security responsibilities; organizational personnel with information security responsibilities].

Test

[SELECT FROM: Organizational processes for clearing and indoctrinating personnel for access to classified information].

Overlays

Showing the OT/ICS overlay for the parent control PS-3 — see the PS-3(1) entries within each baseline below.

OT/ICS Overlay SP 800-82r3

NIST SP 800-82r3 Appendix F, Table 22. Blank baseline means the control/control enhancement is not selected in that initial OT baseline.

LOW

  • Base control: Included (matches standard baseline)

MODERATE

  • Base control: Included (matches standard baseline)

HIGH

  • Base control: Included (matches standard baseline)

STIGs & CCIs

No STIG checks or CCI mappings are currently loaded for PS-3(1). This section is architected to display, per product: STIG ID, Finding ID, Severity, Title, Description, Check, Fix, CCI, and NIST control mapping — but nothing is populated here until a real DISA STIG/CCI dataset is ingested.

Learn more about STIG/CCI integration →

Evidence

Potential Evidence — Derived

Categorized from the SP 800-53A "Examine"/"Test" artifact list above by keyword — not an authoritative NIST evidence list.

Policy

  • Personnel security policy
  • system security plan

Testing

  • Organizational processes for clearing and indoctrinating personnel for access to classified information

Other Records

  • procedures addressing personnel screening
  • records of screened personnel
  • other relevant documents or records