Myanmar has allowed foreigners holding its visas to freely choose to travel to the country via any of its six entry channels.
The channels cover three land border crossings in Chiang Rai's Mae Sai district, Tak's Mae Sot district and Ranong's Muang district and three air entry ports through Myanmar's airports in Yangon, Mandalay and Nay Pyi Taw.
A ceremony was held to launch the new arrangement at a border crossing between Mae Sai district and Myanmar's Tachilek on Wednesday.
The event was presided over by Shan State Security and Border Affairs Minister Col Aung Thu and attended by several Thai officials, including Mae Sai district chief Boontham Tipprasong and Col Yongyuth Laoketkarn, deputy commander of Pha Muang Force's 3rd special unit.
Col Aung Thu said the change is aimed at boosting relations between Thailand and Myanmar, and spurring tourism.