The league consists of two Premier Divisions (East and West), which are ranked at Step 6 in the National League System. Until 2019–20, there was a single Premier Division at Step 6, and two divisions at Step 7 (Division One West and Division One East).
Subject to applying, receiving the required ground grading and finishing high enough in the league table, one club from each Premier Division can be promoted to the Western League Premier Division each season. As of 2022, six clubs have been promoted from the league – Buckland Athletic after finishing as runners-up in 2012, Plymouth Parkway after finishing as champions in 2018, Tavistock and Exmouth Town who were first and second in 2019, and Falmouth Town and Torpoint Athletic who finished as division champions in 2022.
The bottom three clubs from each Premier Division are liable to relegation to the nearest feeder league. The feeder league for Premier Division West is the St Piran Football League, and the main feeder for Premier Division East is the Devon League.[2][3]
The league's principal sponsor is Carlsberg. The League Cup competition is sponsored by Walter C Parson Funeral Directors and is called The Walter C Parson Cup.
