Thanks all. I think I am just going to make it back under the wire (scheduled to arrive this afternoon [Friday]). Would not be anxious to be a part of this in the early going. The legislation really seems to stipulate 48 hours before the departure (déplacement) which could become a nightmare to interpret with originating flights in the U.S. as the starting point/time?? Not to mention that in the U.S. there is not (to my knowledge) anything like the universal availability of rapid antigenic tests, as in France. So you are darned if you do (take test just within 48 hours, to maximize chance of getting results in time, but in being out of luck if you are re-scheduled last minute on connecting flight within U.S.) and darned if you don't (test early, in which case you might not get a result in time).