National League 3 London & SE (up until 2009 known as London 1) is a level five league in the English rugby union system. It is one of four leagues at this level, with its counterparts; National League 3 South West, National League 3 Midlands and National League 3 North. The format of the league was changed at the beginning of the 2009–10 season following re-organisation by the Rugby Football Union. National League 3 London & SE is the highest regional rugby union league covering London and south east England. The club that finishes in first place is automatically promoted to National League 2 South. The runner-up meets the second placed team of National League 3 South West with the winner also gaining promotion. Relegated teams drop down to either London 1 North or London 1 South dependin