bvbellomo
Contributor
The way I always read it is that the test has to be no older then 72 hours from the moment of sampling, not 72 hours from the moment they issued the certificate. So it's 72 hours in total not 72+48 or whatever.
This is part of what I was asking. If they can accept an electronic test, I could test and fly while waiting for the results. If they want a printed certificate, I could do the same and have a valid printed certificate they'd be happy to accept, but it would be in New York while I am in Cairo.