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MA-4(5) MA · Maintenance

Approvals and Notifications

LOW MODERATE HIGH
1 Overlay 0 Related Controls
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Requirements NIST SOURCE

Discussion (NIST Supplemental Guidance)

Notification may be performed by maintenance personnel. Approval of nonlocal maintenance is accomplished by personnel with sufficient information security and system knowledge to determine the appropriateness of the proposed maintenance.

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 MA-4(5) 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. personnel or roles required to approve each nonlocal maintenance session is/are defined;
  2. personnel and roles to be notified of the date and time of planned nonlocal maintenance is/are defined;
  3. the approval of each nonlocal maintenance session is required by <MA-04(05)_ODP[01] personnel or roles>;
  4. <MA-04(05)_ODP[02] personnel and roles> is/are notified of the date and time of planned nonlocal maintenance.

Examine

[SELECT FROM: Maintenance policy; procedures addressing nonlocal system maintenance; notifications supporting nonlocal maintenance sessions; maintenance records; audit records; system security plan; other relevant documents or records].

Interview

[SELECT FROM: Organizational personnel with system maintenance responsibilities; organizational personnel with notification responsibilities; organizational personnel with approval responsibilities; organizational personnel with information security responsibilities].

Test

[SELECT FROM: Organizational processes for approving and notifying personnel regarding nonlocal maintenance; mechanisms supporting the notification and approval of nonlocal maintenance].

Overlays

Showing the OT/ICS overlay for the parent control MA-4 — see the MA-4(5) 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)
  • Added: (1)

HIGH

  • Base control: Included (matches standard baseline)
  • Included: (3)
  • Added: (1)

STIGs & CCIs

No STIG checks or CCI mappings are currently loaded for MA-4(5). 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

  • Maintenance policy
  • system security plan

Testing

  • Organizational processes for approving and notifying personnel regarding nonlocal maintenance
  • mechanisms supporting the notification and approval of nonlocal maintenance

Other Records

  • procedures addressing nonlocal system maintenance
  • notifications supporting nonlocal maintenance sessions
  • maintenance records
  • audit records
  • other relevant documents or records