What are the TM30 registration rules for expats returning to Thailand after traveling abroad?

The TM30 registration rules in Thailand can vary by province. Some require re-registration when an expat travels either within Thailand or abroad, while others may only need it for international travel. It is generally the responsibility of the condo owner to register the TM30, but many expats are advised to handle it themselves upon returning, especially if they have traveled outside of the country. Failure to comply with TM30 registration can lead to problems later, such as during visa extensions, so it is often recommended to visit the local immigration office for the current requirements.