sefuchs
Contributor
We were given that form by the United Airlines check-in agent at the Cozumel airport for the return trip through Houston. We were asked to fill out prior to going through immigration. No one thereafter asked to see it or took it from us.
That exact same thing happened to us leaving Cancun right after going through security. Made us fill out a form that the print was so tiny you almost needed a magnifying glass to read, then nobody bothered to take the form. We tried to hand the completed form back to them but they just shook their head. We had the completed electronic version on our phones on the way down in Coz but nobody checked that either.