What do I need to do to change my address when moving from Bangkok to Lamphun Province?

When moving from Bangkok to Lamphun Province, you need to update your address with the relevant immigration office. This involves filing the TM30 form, which requires a copy of the house owner's ID and their blue book. Additionally, inquire at the immigration office about how to submit your 90-day report, as it can be done by mail, online, or in person. The TM28 form is related to address changes, but many offices no longer require it if you have already filed the TM30.