Greetings all, in need of some advice.....again. I have a 12 month multiple entry non immigrant O visa based on marriage issued at the Thai Consulate in Savannakhet Laos, which is due to expire 19/06/2018. My current passport is also due to expire. I intend to visit the Australian embassy in Bangkok in May to apply for a new passport which will make my current passport invalid, however, to my knowledge my visa is still valid. My Questions are......... 1) Do I use both passports when I exit Thailand, one which will be newly issued & have no entry/exit stamps & invalid passport with current visa? Or 2) Do I need to visit Chaengwattana to transfer my current visa stamp from my invalid passport to my newly obtained passport? Any and all advice appreciated. Big thanks to Tod, Robert and Lloyd for the ongoing stream of invaluable information.