It was started in 2023 by Football Association of Thailand for improving all Thai Amateur clubs to be better and preparing the amateur clubs ready to play in Football League in each region.
[1] This competition is organized to find clubs that will be promoted to Thai League 3 but will not be relegated.
Clubs that participate in the competition are recruited through applications each year.
Therefore, the number of clubs competing each year is not the same, depending on how many clubs will apply each year.
All amateur clubs can apply to compete in this competition but must meet the club licensing standards of the Football Association of Thailand.