| STIG ID | Version | Title | Product |
|---|---|---|---|
| SRG-OS-000355-GPOS-00143 | V3R1 | The operating system must, for networked systems, compare internal information system clocks at least every 24 hours with a server which is synchronized to one of the redundant United States Naval Observatory (USNO) time servers, or a time server designated for the appropriate DOD network (NIPRNet/SIPRNet), and/or the Global Positioning System (GPS). |