In 2006, the National Leagues were sponsored by LHF Healthplan.
National League One was won by Hull KR , who as a result entered Super League for the first time. They had led the league for the majority of the season and defeated Widnes Vikings in the final. York City Knights and Oldham Roughyeds were relegated to National Two.
National League Two was won by Dewsbury Rams , who only sealed the title on the last day of the season. Runners-up Sheffield Eagles won the play-off final against Swinton, who won through the play-offs by beating Barrow Raiders , Featherstone Rovers and Celtic Crusaders , who they beat in rugby league's first ever golden point extra time.
National League Three was won by Bramley Buffaloes , last year's losing finalists.
The League One and League Three Grand Finals, and the League Two Play-off final were played at Warrington's Halliwell Jones Stadium on October 82006 .
Hull KR are very close to taking the league leadership into the play-offs. Widnes are now in second place and York cling to National One by their fingertips.
Dewsbury sealed automatic promotion to National League One with a comeback victory over Workington. The Sheffield Eagles finish second after their eleventh straight win.
This game was the first rugby league match in the UK to settled in golden point extra time. After 80 minutes the score was 26-26. After two periods of extrq time (10 minutes each) there was no further score. Two minutes into the additional overtime Swinton's Chris Hough dropped a goal to seal it for Swinton.