Primary definition
1. Ensuring timely and reliable access to and use of information. Source: 44 U.S.C. Sec 3542 2. Timely, reliable access to data and information services for authorized users. Source: NSA/CSS Manual Number 3-16 (COMSEC)
Also known asuptime · accessibility · operational readiness · service availability
7 sources cited4 related termsReviewed Aug 9, 2026
— Committee on National Security Systems Glossary CNSSI 4009-2015View source
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CNSSGC
1. Ensuring timely and reliable access to and use of information. Source: 44 U.S.C. Sec 3542 2. Timely, reliable access to data and information services for authorized users. Source: 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). Availability. In Election Security Glossary. Retrieved August 20, 2026, from https://electionsecurityglossary.com/glossary/availability
Sources
7 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
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ODNI Cyber Threats to Elections Lexicon
ODNI Cyber Threats to Elections Lexicon
Multi-source
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