13 Jul 2026CMMC Phase II suspended: no C3PAO assessments can be designated. DFARS 7012 and Rev 2 still apply.What changed, and what did not

NIST SP 800-171 Rev 2 · 3.10 Physical Protection

3.10.6 Safeguard CUI at alternate work sites

Enforce safeguarding measures for CUI at alternate work sites.
SPRS weight
1
1 point deducted from 110 when not implemented.
CMMC level
L2
Level 2 only; not among the 17 Level 1 practices.
Assessment objectives
2
From NIST SP 800-171A, each one a “determine if” an assessor answers.

What an assessor checks

NIST SP 800-171A breaks 3.10.6 into 2 objectives. Every one has to be met for the requirement to be met; a partial answer scores as not implemented.

  1. [a]Determine if safeguarding measures for CUI are defined for alternate work sites.
  2. [b]Determine if safeguarding measures for CUI are enforced for alternate work sites.
Examine
[SELECT FROM: Physical and environmental protection policy; procedures addressing alternate work sites for personnel; security plan; list of safeguards required for alternate work sites; assessments of safeguards at alternate work sites; other relevant documents or records].
Interview
[SELECT FROM: Personnel approving use of alternate work sites; personnel using alternate work sites; personnel assessing controls at alternate work sites; personnel with information security responsibilities].
Test
[SELECT FROM: Organizational processes for security at alternate work sites; mechanisms supporting alternate work sites; safeguards employed at alternate work sites; means of communications between personnel at alternate work sites and security personnel].

If it is open: POA&M eligibility

May be carried on a Level 2 POA&M · 1 point deducted

A 1-point requirement outside the six named exclusions - eligible to carry, and NOT MET until a closeout assessment confirms it.

A POA&M is only permitted at a score of 88 or above, and closes in one 180-day window. Check a full gap list or compute your score.

Where 3.10.6 maps

NIST SP 800-53 Rev 5

  • PE-17 Alternate Work Site

NIST CSF 2.0

  • Physical access is managed Physical Environment

SOC 2

No direct mapping.

Query it from your own tools

This page and the MacTech CMMC MCP server render the same dataset. Ask your assistant and it will answer from the methodology, not from memory.

lookup_control 3.10.6
get_assessment_objectives 3.10.6
generate_poam_entries ["3.10.6"]

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Working notes on Physical Protection

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