Here is a quote from AC No: 00-1.1A (Public Aircraft Operations):
What Oversight of PAO Does the FAA Have? The FAA has limited oversight of PAO,
though such operations must continue to comply with the regulations applicable to all aircraft
operating in the NAS. The government entity conducting the PAO is responsible for oversight of
the operation, including aircraft airworthiness and any operational requirements imposed by the
government entity. The government agency contracting for the service assumes the responsibility
for oversight of a PAO.
The military is another entity that operates aircraft outside of FAA jurisdiction. Even military airman certificates have to be `converted' to civilian ones i a military pilot wants to become a civilian pilot.
True, though this may mean many things. The only part of CFR 14 that mentions that a certificate is required for operating aircraft is CFR 14 61.3 which states that an unexpired certificate is required to `exercise the privileges' of that certificate. So if the PAO does not require the certificate to begin with, this part does not apply and one only has to comply with part 91 rules. Again, feel free to disagree, the sheriff told me this so who knows:)
The military is another entity that operates aircraft outside of FAA jurisdiction. Even military airman certificates have to be `converted' to civilian ones i a military pilot wants to become a civilian pilot.