PassportArticles with the tag Passport. Like Arrival Card You must fill out an arrival card in order to get past immigration. You will get the arrival card on the plane, bringing a pen will make it a lot easier to fill out the arrival card. Passport and the Police Take care of your passport, and be careful what you sign. As a foreigner, the law requires you to bring your passport always when you are in Thailand. Also, you should never sign papers you do not understand, even if the police tell you to sign them. Like