To avoid a certificate error accessing secure DoD web sites, you must install the DoD Root Certificates. DoD operates its own certificate system to avoid the exposures from commercially purchased certificates. Follow these instructions and links to download and install the DoD Root Certificate Authorities.
DISA's InstallRoot is a utility to install and manages all of the DoD and ECA root and intermediate certificate authority root certificates into trust stores on Microsoft Windows servers and workstations.DISA: InstallRoot 5.0.1
This DISA archive contaons all of the DoD Root certificate authorities. This archive can be used as an alternative to the InstallRoot application.DoD Root Certficate Archive
This DISA archive contaons all of the ECA Root certificate authorities. This archive can be used as an alternative to the InstallRoot application.ORC: External Certification Authority (ECA) Repository
For questions or problems with the DoD website please contact the DISA OKC OST at 1-800-490-1643 or by email at firstname.lastname@example.org.