This definition appears very rarely
See other meanings of IATO
We have 4 other definitions for IATO
in our Acronym Attic
Samples in periodicals archive:
If the integration testing is successful, remaining security testing is done to support an Interim Approval to Operate (IATO) or to grant an Approval to Operate (ATO) on SIPRNET from the DAA.
Enhanced Workflow - This release provides enhanced workflow by assigning status levels to C&A Packages including - Not Started, In-Progress, Completed, Expired, Interim Approval to Operate or Full Approval to Operate.
5%) was completed this year and has received interim approval to operate from the National Energy Board.