The Northern Irishman slammed the decision by referee Willie Collum not to award a penalty to Celtic in injury time and subsequently booked Anthony Stokes for diving instead.
Stokes went to ground inside the Kilmarnock penalty box as he was challenged by Killie defender Michael Nelson, who later admitted that he had made contact with the Irish striker.
Lennon said at the time: “It’s a stonewall penalty. It’s a shocking decision, absolutely shocking. He is clean through, holding the boy off, the guy lunges at him and he takes his legs away. The defender doesn’t get anywhere near the ball so it’s a penalty and a red card in the final minute of the game where we have banged away at the door. For me it’s a criminal decision and it has cost us the treble.
“I have only just seen the incident again there on the TV five or ten minutes ago from every angle. So how he can make that decision from where he was I don’t know. To rub salt in the wounds he books Anthony for diving, which is awful. Awful refereeing.
“We battered away, all you want are the officials to do their jobs properly. The penalty is a penalty, he is clean through on goal and there is no way Stokes would go down clean through on goal. Nelson’s reaction is one where he knows he has given a penalty away so he is hugely relieved. I couldn’t believe the decision myself.”
Lennon has until the 30th March to respond to the governing body. Once the Scottish FA has received Lennon’s response, Vincent Lunny can offer the Celtic manager a fixed suspension, take no action or pass the matter onto the judicial panel for a decision.