In terms of promotion the league champions would go straight up into National Division Two while the runners up would have a one-game playoff against the runners up from National Division Three South (at the home ground of the club with the superior league record) for the final promotion place.

After just missing out on the playoffs last season, Bradford & Bingley went two places better by winning the championship, finishing 13 points clear of runners up Nuneaton to gain promotion to the 2006–07 National Division Two.

[4] Nuneaton would, however, make an instance return to National Division Two after their relegation a season ago, by defeating 2005–06 National Division Three South runners up North Walsham away in the north–south playoff.

North Walsham were the southern division runners up and as they had a superior league record than northern runners-up, Nuneaton, they hosted the play-off match.

74 - 0 Nuneaton at home to Kendal on 22 April 2006 68 - 7 Preston Grasshoppers away to New Brighton on 22 October 2005 90 - 21 Bradford & Bingley at home to New Brighton on 18 February 2006 Bradford & Bingley at home to New Brighton on 18 February 2006 Bradford & Bingley at home to New Brighton on 18 February 2006 Fylde away to Leicester Lions on 25 February 2006 Fylde at home to Preston Grasshoppers on 7 January 2006 [10][11][12][13] Paul Bailey for Preston Grasshoppers at home to Fylde on 10 September 2005 Mark Kirkby for Fylde away to Leicester Lions on 25 February 2006 Tom Rhodes for Bradford & Bingley at home to New Brighton on 18 February 2006 Mike Scott for Fylde away to Leicester Lions on 25 February 2006 Mike Scott for Fylde at home to Preston Grasshoppers on 7 January 2006 [14][15][16][17][18]