Effective from 22 February, 2021, the government has adjusted the classification of
formerly five areas to currently four areas in line with the improvement in the COVID-19 situation in the country.
The surveillance (green) areas now increase from 35 to 54 provinces, the high surveillance (yellow) areas decrease from 17 to 14 provinces, and the controlled (orange) areas down from 20 to eight provinces, while Samut Sakhon remains the maximum controlled (dark red) area.
Thailand further relaxes COVID-19 control measures from 22 February 2021
Surveillance areas (54 provinces, including 19 newly-classified): (region by region) Central: Ang Thong, Chai Nat, Lop Buri, Nakhon Sawan, Phetchabun, Sing Buri, and Uthai Thani; East: Chanthaburi, Prachin Buri, Sa Kaeo, and Trat; North: Chiang Mai, Chiang Rai, Kamphaeng Phet, Lampang, Lamphun, Mae Hong Son, Nan, Phayao, Phichit, Phitsanulok, Phrae, Sukhothai, and Uttaradit; Northeast: Amnat Charoen, Bueng Kan, Buri Ram, Chaiyaphum, Kalasin, Khon Kaen, Loei, Maha Sarakham, Mukdahan, Nakhon Phanom, Nakhon Ratchasima, Nong Bua Lamphu, Nong Khai, Roi Et, Sakon Nakhon, Si Sa Ket, Surin, Ubon Ratchathani, Udon Thani, and Yasothon, and South: Krabi, Nakhon Si Thammarat, Pattani, Phang Nga, Phatthalung, Phuket, Prachuap Khiri Khan, Satun, Surat Thani, and Trang.
