Computer Security Resource Center

Computer Security Resource Center

Computer Security
Resource Center

A  |  B  |  C  |  D  |  E  |  F  |  G  |  H  |  I  |  J  |  K  |  L  |  M  |  N  |  O  |  P  |  Q  |  R  |  S  |  T  |  U  |  V  |  W  |  X  |  Y  |  Z

ATO

Abbreviation(s) and Synonym(s):

Approval to Operate
Authorization to Operate

Definition(s):

  Authorization to Operate; 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