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MP-5(3) MP · Media Protection

Custodians

LOW MODERATE HIGH
1 Overlay 0 Related Controls
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Requirements NIST SOURCE

Employ an identified custodian during transport of system media outside of controlled areas.

Discussion (NIST Supplemental Guidance)

Identified custodians provide organizations with specific points of contact during the media transport process and facilitate individual accountability. Custodial responsibilities can be transferred from one individual to another if an unambiguous custodian is identified.

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 MP-5(3) 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. a custodian to transport system media outside of controlled areas is identified;
  2. the identified custodian is employed during the transport of system media outside of controlled areas.

Examine

[SELECT FROM: System media protection policy; procedures addressing media transport; physical and environmental protection policy and procedures; system media transport records; audit records; system security plan; other relevant documents or records].

Interview

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

Test

[SELECT FROM: Organizational processes for identifying and employing a custodian to transport media outside of controlled areas].

Overlays

Showing the OT/ICS overlay for the parent control MP-5 — see the MP-5(3) 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

Not applicable at this tier.

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 MP-5(3). 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

  • System media protection policy
  • physical and environmental protection policy and procedures
  • system security plan

Testing

  • Organizational processes for identifying and employing a custodian to transport media outside of controlled areas

Other Records

  • procedures addressing media transport
  • system media transport records
  • audit records
  • other relevant documents or records