An American family of 6 renewed their passports here recently and then transferred their visas to the new passports in BKK. Somewhere in the process, one of their kids' TM6 paper was lost. They are leaving for the States in May. What needs to be done to replace the TM6? Just wait until they get to the airport? He has the TM6 number because it was on one of their previous 90-day check in forms.