@J**
you don't, other than through reports. So much Thai immigration stuff is completely unofficial and unwritten, or there is what is written but what matters is the interpretation and enforcement, that varies widely... like that one border is more difficult than another, or that one consulate is easier than another, or that immigration may flag you after six air visa exempt entries or whatever... this is all useful information, but you will not get it from reading official pronouncements, you will only get it third hand from reports. And it varies all the time- KL for example was not giving tourist visas to non-residents for a long time, now it is... you find this stuff out from asking others, not from reading what is written in the immigration law. Look at the group you are in.