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CP-8(2) CP · Contingency Planning

Single Points of Failure

LOW ✓ MODERATE ✓ HIGH
1 Overlay 0 Related Controls
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Requirements NIST SOURCE

Obtain alternate telecommunications services to reduce the likelihood of sharing a single point of failure with primary telecommunications services.

Discussion (NIST Supplemental Guidance)

In certain circumstances, telecommunications service providers or services may share the same physical lines, which increases the vulnerability of a single failure point. It is important to have provider transparency for the actual physical transmission capability for telecommunication services.

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 CP-8(2) 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. alternate telecommunications services to reduce the likelihood of sharing a single point of failure with primary telecommunications services are obtained.

Examine

[SELECT FROM: Contingency planning policy; procedures addressing primary and alternate telecommunications services; contingency plan; primary and alternate telecommunications service agreements; system security plan; other relevant documents or records].

Interview

[SELECT FROM: Organizational personnel with contingency plan telecommunications responsibilities; organizational personnel with system recovery responsibilities; primary and alternate telecommunications service providers; organizational personnel with information security responsibilities].

Overlays

Showing the OT/ICS overlay for the parent control CP-8 — see the CP-8(2) 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)
  • Included: (1) (2)

HIGH

  • Base control: Included (matches standard baseline)
  • Included: (1) (2) (3) (4)

STIGs & CCIs

No STIG checks or CCI mappings are currently loaded for CP-8(2). 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

  • Contingency planning policy
  • contingency plan
  • system security plan

Other Records

  • procedures addressing primary and alternate telecommunications services
  • primary and alternate telecommunications service agreements
  • other relevant documents or records