How can I convert my NZ/Australia driving licence to a Thai driving licence, and what documents do I need?

To convert an NZ or Australian driving licence to a Thai driving licence, you generally need an international driving permit or may need to retake the test if converting a local licence. Required documents include a medical certificate and a residence certificate from the Immigration Bureau. A TM30 form and passport stamp are not sufficient alone. If you have already been in Thailand for 90 days, you will need to report for another 90 days before applying for a residence certificate.