Note: DOD frequently updates root certificates used for enhanced web site security. If you get errors about this site not being trusted, the most likely cause is implementation of new certificates. In order to resolve this issue, public domain (not .mil) computer users, or their respective IT support personnel, to visit the DOD Public Key Infrastructure (PKI) site to download and install the latest DOD certificates from DOD PKI site. Once you are on this site, click on the Trust store tab. Choose the latest (most recent) installer to install all the DOD Certificates into the systems trust store. For public computers using a browser other than Internet Explorer, additional configuration steps may be needed. User can use their preferred search engine and search on "DOD PKI " for configuration assistance on their specific browser.