What are the official requirements and experiences regarding the TM30 reporting when staying overnight outside the province in Thailand?

The TM30 reporting requirement for expats differs by region in Thailand, causing confusion among residents. Members from Chiang Rai indicate that reporting to immigration is mandatory every time one stays overnight outside their province, while in Chiang Mai, others suggest that it's only necessary when leaving the country and obtaining a new departure card. Some individuals report not being asked for TM30 documentation during extensions and note that different immigration offices interpret the rules variably. Generally, the consensus is that if expats don't need to visit immigration for other reasons, they likely won't face issues if the TM30 isn't filed every time they travel within Thailand.