What are the valid reasons for obtaining a Multiple Entry Tourist Visa (METV) for Thailand?

A Multiple Entry Tourist Visa (METV) is necessary for individuals wishing to enter Thailand multiple times within a six-month period. Valid reasons for obtaining an METV include planning multiple trips with a requirement to show proof of both entry and exit flights. It is essential to demonstrate the need for a visa by providing itinerary details that reflect the intent to leave and return, especially for travelers who plan to stay only part-time in Thailand or enter the country by different means, such as by car.