What do I need to know about TM.30 regulations in Thailand?

This is going to be a long discussion. What is a tourist, seems to be the question. Tourist use the Visa Exempt Entry, Visa on Arrival or Tourist visa to spend their holidays in Thailand. People using these types of admitted to stay period to live inside Thailand are not a tourist. Enforcement of the TM30 is getting stricter at Immigration Offices, out of my own experience I sit next to an Immigration Officer in Dec 2017 in Krabi Office who had a new computer program to do this. She was the only one in the office with the knowledge of that program. Immigration officers are getting trained regular and this program is going or is already nation wide. Maybe not in your office yet or your office decide not to give priority to this rule, we can just not tell. Making long lists of experience does not help, just by the fact when next week the program is installed and people are trained and the Office Chief decide we go to enforce it, all those replies suddenly are useless. Talk to you landlord, condo management and visit the Immigration Office to report within 24 hours after arriving in Thailand. And than ask information, you won't get shot, at least I never read a news article that people got shot in Thai Immigration Offices for asking information. There is enough information to be found on this page in previous discussions, also a lot of incorrect information and feelings of foreigners about this rule. We can not change the rules inside Thailand, we are guests here and have to decide for yourself if you want to follow the rules of face the consequences if you break them. Enjoy your time in Thailand.

Here in Nakhornsrithammarat you need give copy pp all pages with stamp and house papers and pic if you late 800bath penalty and extension 1600bath

Not meaning any disrespect to the mods, who have a thankless task, I don't think this new policy is particularly helpful.

For example, someone yesterday asked the following question, and got only the link to the video before commenting was promptly closed:

"Hi, 2 friends will be coming from HK on visa exemption to stay with me for 5 days. Do I have to file in the TM30 for them? If I don't, will be have problem at the immigration when they leave the country?"

The video doesn't answer that question. The answer is "No, if you don't they will not have any problem when leaving the country". If this person is in Bangkok, it is overwhelmingly unlikely that there could be any negative repercussions from not filing.

The idea of this group is to help people navigate the hurdles and pitfalls of Thai immigration. Obviously there's plenty of nonsense that gets commented and that needs to be deleted, but directing people to the video or telling them to contact immigration isn't always especially helpful either (and especially not in Bangkok, where the immigration office is horrendously busy all the time).

Lol! A Thai visa advice page that says " ask immigration"

Phetchaburi: I was told by Phetchaburi immigration yesterday that there is no need to report address after returning to Phetchaburi Province having stayed in a hotel in another province

After asking many times and have been over 5 years now my local immigration office still has no idea what one is.