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Computer Security Resource Center

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Resource Center

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Authorization To Operate

Acronym(s):
ATO
Definition(s):

  One of three possible decisions concerning an issuer made by a Designated Authorizing Official after all assessment activities have been performed stating that the issuer is authorized to perform specific PIV Card and/or Derived Credential issuance services.
Source(s): NIST SP 800-79-2

Synonym(s):

None

See Also: