NIST SP 800-171 Rev 2 · 3.8 Media Protection

3.8.8 Prohibit portable storage with no owner

Prohibit the use of portable storage devices when such devices have no identifiable owner.

SPRS weight: 3; 3 points deducted from 110 when not implemented.
CMMC level: L2; Level 2 only; not among the 17 Level 1 practices.
Assessment objectives: 1; From NIST SP 800-171A, each one a “determine if” an assessor answers.

What an assessor checks

NIST SP 800-171A breaks 3.8.8 into 1 objectives. Every one has to be met for the requirement to be met; a partial answer scores as not implemented.

Determine if the use of portable storage devices is prohibited when such devices have no identifiable owner.

Examine: [SELECT FROM: System media protection policy; system use policy; procedures addressing media usage restrictions; security plan; rules of behavior; system design documentation; system configuration settings and associated documentation; system audit logs and records; other relevant documents or records].
Interview: [SELECT FROM: Personnel with system media use responsibilities; personnel with information security responsibilities; system or network administrators].
Test: [SELECT FROM: Organizational processes for media use; mechanisms prohibiting use of media on systems or system components].

Not POA&M-eligible: above the 1-point ceiling · 3 points deducted

Worth 3 points. No requirement over 1 point may appear on a Level 2 POA&M, so this has to be closed before the assessment.

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.

No direct mapping.

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 3.8.8
get_assessment_objectives 3.8.8
generate_poam_entries ["3.8.8"]

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