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.

Halifax would finish as runaway champions of the league, ending up 14 points clear of nearest rivals Macclesfield (even with a cancelled game against Blaydon) and gaining promotion to the 2005–06 National Division Two.

Rugby Lions would actually have stayed up had in not been for a five-point penalty given for them fielding too many foreign players in a home game against Bedford Athletic.

[8] Although Rugby Lions were punished from fielding too many overseas players, other teams benefited immensely from their foreign contingent (particularly Halifax and Bradford & Bingley) with six of the top ten try scorers hailing from outside England.

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