No Lone Zone (nlz)

Primary definition

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). Source: CNSSI No. 4005 (COMSEC); NSA/CSS Manual Number 3-16 (COMSEC)

Also known asNLZ · two-person zone · dual-control area
2 sources cited4 related termsReviewed Aug 9, 2026
Committee on National Security Systems Glossary CNSSI 4009-2015View source
People also ask

What does NLZ mean?

The term No-Lone Zone (NLZ) refers to a protected area where no individual is permitted to be alone, requiring at least two authorized people to be present for specified sensitive activities. It gives election, security, legal, or technical readers a specific label for the concept rather than a broader everyday meaning.

What controls are associated with No-Lone zone (NLZ)?

Controls for No-Lone Zone (NLZ) are selected to protect the function described by the term: a protected area where no individual is permitted to be alone, requiring at least two authorized people to be present for specified sensitive activities. Depending on the context, safeguards can include access restrictions, authentication, physical security, key management, monitoring, logging, testing, configuration control.

Why does No-Lone zone (NLZ) matter for security?

Understanding No-Lone Zone (NLZ) matters because the concept can affect security, reliability, auditability, or trusted operation. In this glossary context, it refers to a protected area where no individual is permitted to be alone, requiring at least two authorized people to be present for specified sensitive activities.

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CNSSGC

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). Source: CNSSI No. 4005 (COMSEC); NSA/CSS Manual Number 3-16 (COMSEC)

Committee on National Security Systems Glossary CNSSI 4009-2015 · 2024

Cite this term

Permanent URL · stable across revisions
Election Security Glossary. (2026). No Lone Zone (nlz). In Election Security Glossary. Retrieved August 21, 2026, from https://electionsecurityglossary.com/glossary/no-lone-zone-nlz

Sources

2 cited · last checked Aug 9, 2026

01

Committee on National Security Systems Glossary CNSSI 4009-2015
Committee on National Security Systems Glossary CNSSI 4009-2015

High consensus

View source

02

The Cyber Glossary
The Cyber Glossary

Multi-source

View source

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