Hunslet Hawks player-coach Paul March was banned for two matches for using foul and abusive language to a touch-judge after being sin-binned in the 15th minute of a Championship match at Featherstone Rovers on July 10.
March, who pleaded not guilty to the Grade B offence, was also fined £50.
Workington Town player Karl Olstrum was suspended for two matches and fined £50 after being found guilty of striking an opponent with his elbow in the 58th minute of a Championship One fixture at Rochdale Hornets on July 11. Olstrum had pleaded not guilty to the Grade B offence.
The committee also handed down a two-match ban and £50 fine to Whitehaven player Tyrone Dalton after he pleaded guilty to a Grade C tripping offence in the 27th minute of a match against South Wales Scorpions on July 10.