Promotion and relegation affect the makeup of the league each season, with the top team automatically promoted to National Division Two, and the runner-up playing a one-off play-off with the runner-up of National Division Three North for promotion.
Promotion and relegation affect the makeup of the league each season. Up to and including the 2008-09 season, the top team was automatically promoted to National Division Two, and the runner-up played a one-off play-off with the runner-up of National Division Three North for promotion.