The official management decision given by a senior organizational official to authorize operation of an information system and to explicitly accept the risk to organizational operations (including mission, functions, image, or reputation), organizational assets, individuals, other organizations, and the Nation based on the implementation of an agreed-upon set of security controls. Source: NIST SP 800-53 Rev 4; NIST SP 800-53A Rev 1; NIST SP 800-37 Rev 1
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The official management decision given by a senior organizational official to authorize operation of an information system and to explicitly accept the risk to organizational operations (including mission, functions, image, or reputation), organizational assets, individuals, other organizations, and the Nation based on the implementation of an agreed-upon set of security controls. Source: NIST SP 800-53 Rev 4; NIST SP 800-53A Rev 1; NIST SP 800-37 Rev 1
Cite this term
Election Security Glossary. (2026). Authorization To Operate (ato). In Election Security Glossary. Retrieved August 13, 2026, from https://electionsecurityglossary.com/glossary/authorization-to-operate-ato
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