Originally Posted by
WineCountryUA
The new (PMCO) system requires you to validate your passport with a live agent on a regular basis. Initially and if you have gone a certain time period since last international flight, you will need validity at the airport and no be able to check-in until that is done. Not sure what the min time period is ( I have heard 90 days and also heard 180 days). So unless you are a regular frequent international traveller, this will be regularly occur.
I fly across a boarder at least once a month. This should not be an issue. Indeed, I scanned my passport in a PMCO kiosk last month to print out a PMUA BP.