I checked out the
link posted by keep_pushing and it looks like the statements are coflicting... for one, it says the authorization can only be in the authorizing state's airspace and/or the airspace of other states that have or will allow such flights in their airspace and then the same statement goes on to say...
"A State may wish to impose a lower maximum age limit than that specified by ICAO in 2.1.10.1. It may do this for the licenses it issues, but, as stated above, it cannot prevent an aircraft operated by a PIC holding a licence from another State, who is below the ICAO upper limit, from operating in its airspace."
which is which??
