Do my parents need to report to immigration every 3 months with an OA visa in Thailand?

When your parents apply for an OA visa in Thailand, they will be required to report to immigration every 90 days, which is commonly referred to as a TM47 form. This report incurs no fees and can typically be completed online. It's important to note that the OA visa itself must be applied for outside of Thailand, usually in their home country, as it cannot be obtained within Thailand. Additionally, some commenters suggest that a Non-O visa could be more advantageous since it does not require compulsory health insurance.