A notice of complaint has been issued by the Scottish FA's compliance officer regarding remarks made by Hearts boss Paulo Sergio about referee Iain Brines.
Brines was the referee involved in Hearts' controversial loss to Ayr in the Scottish Communities League Cup.
And, ahead of last week's match against Dunfermline, Sergio criticised him and questioned his appointment as assistant referee at East End Park.
A Hearts spokesperson told BBC Scotland they are "considering their response".
A hearing date has been set by the SFA for Thursday 11 November.
Sergio said he as "not happy with" Brines' appointment for Hearts' visit to East End Park, where the Edinburgh side won 2-0.
Brines disallowed a goal when Hearts were already a goal up against Ayr United in the cup tie at Somerset Park and, after levelling to force extra time, Brian Reid's side triumphed on penalties.
Sergio said of the appointments for the match at East End Park: "I am not happy to have him at Hearts games, I'm sorry."