On my flight to IAD yesterday, they handed out the customs forms. Went to APC line which was long and they started sending some of us to empty booths for non-US citizens, so the paper customs form was required in this case.
Interestingly, the immigration officer took my form and did not give it back for customs. And after claiming my bag, they let people walk through customs without asking for any forms or questions. Similar to how it is commonly done in European airports, but I've never seen this at a US airport.
Last edited by smxflyer; May 31, 2016 at 4:23 pm