 The winner of each regional league enter the Regional League Championships to determine the three teams that will receive promotion to the Thai Division 1 League

Formed in 2009, initially 9 clubs applied to be part of the new setup; Krabi, Nakhon Si Thammarat, Narathiwat, Pattani, Phattalung, Phuket, Satun, Yala and Tartauo.Come decision day, Tartauo either failed to apply on time, or were not accepted into the new setup.Narathiwat and Satun were the only two teams with previous experience in the Thai football league system.