Compliance & Compatibility Documentation
ACEIT Certification/Compliance Information and Operating System/Microsoft Office Compatibility Information
ACEIT Version Compatibility
as of May 2025
ACEIT is designed to run in a Microsoft Windows operating system. Multiple versions of ACEIT can be installed on the same machine.
Some ACEIT applications, such as CO$TAT and POST, require Microsoft Office to run.
Please see the table below for version compatibility.
ACEIT Version
(release date) | Windows OS Version | MS Office Version |
| 8.2 (August 2024) | Windows 10 (32 or 64-bit), Windows 11 | 2019, 2021, 2024 (32 or 64 bit)* |
| 8.1 (October 2022) | Windows 10 (32 or 64-bit), Windows 11 | 2013, 2016, 2019, 2021, 2024
(32 or 64-bit)* |
| 8.0 (June 2019) | Windows 10
(32 or 64-bit) | 2013, 2016, 2019
(32 or 64-bit)* |
* JACS – MS Project 64-bit recommended with large schedules
We anticipate click-to-run, desktop-installed versions of Office 365 applications to be compatible with ACEIT 8.2, 8.1 and 8.0. However, due to the continuous update nature of Office 365, we will not have all features fully tested at all times. Additionally, the add-in applications in the ACEIT suite (POST, CO$TAT, JACS, and the Inflation Utility) are not compatible with the Microsoft Store desktop and online versions of Office 365.
ACEIT is fully functional when FIPS mode is enabled in Windows.
You can view your ACEIT version and release date by opening the About screen in any ACEIT application.