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no-lone zone (NLZ)

Abbreviation(s) and Synonym(s):



  An area, room, or space that, when staffed, must be occupied by two or more appropriately cleared individuals who remain within sight of each other. See two-person integrity (TPI).
CNSSI 4009-2015 from CNSSI 4005 - NSA/CSS Manual Number 3-16 (COMSEC)