When I click the reference footnote on that page leading to iad.gov I get an invalid certificate authority error, heh.
https://www.iad.gov/iad/library/ia-guidance/ia-solutions-for...)
https://www.iad.gov/iad/library/ia-guidance/ia-solutions-for...)
https://wiki.mozilla.org/CA:GovernmentCAs
https://bugzilla.mozilla.org/show_bug.cgi?id=478418 (Status: RESOLVED WONTFIX)
https://fpki.idmanagement.gov/crls/
https://www.dau.edu/faq/p/DoD-PKI-Certificates
Although it kinda makes you wonder why China's CA was trusted by default, and it took actual, in-the-wild fraudulent certs before it was revoked.
While I'm at it, why can't... Nevermind. The certificate authority system is so damned broken I could sit here for hours. Arrrg.