IATO

Interim Approval to Operate

Temporary authorization granted by principal accrediting authority (PAA) or authorizing official (AO) for an information system to process information based on preliminary results of a security evaluation of the system. (To be replaced by ATO and plan of action and milestones (POA&M).


IATO

Interim Approval to Operate

Temporary authorization granted by principal accrediting authority (PAA) or authorizing official (AO) for an information system to process information based on preliminary results of a security evaluation of the system. (To be replaced by ATO and plan of action and milestones (POA&M).

Used in methodology