"It is alleged the Manchester United manager breached FA Rule E3 in that he implied that the match official was motivated by bias. Ferguson has until 4pm on Friday 1 February 2013 to respond to the charge."
Ferguson spoke out following the 1-1 draw at White Hart Lane, when United conceded an injury-time equaliser after Wayne Rooney's penalty claim was rejected by referee Chris Foy.
However, it was assistant Beck who bore the brunt of Ferguson's ire, with the Scot's discontent with the linesman dating back to April 2010 when he failed to spot Didier Drogba was in an offside position as he scored a crucial goal for Chelsea at Old Trafford.
Ferguson clearly feels he was allowed to criticise what he regarded as a poor performance but, speaking on Friday, said he suspected the matter has become personal. "I just think it is more about me than what I have said."