Robbie Dunne has lodged an appeal against his 18-month ban for bullying and harassing fellow jockey Bryony Frost.
Dunne, 36, received the punishment at the conclusion of a lengthy case at the British Horseracing Authority headquarters.
He was found to have engaged in conduct that was prejudicial to the integrity, proper conduct and good reputation of racing.
The ban, handed out last month with three months of it suspended, came after he was found guilty of four breaches of racing's rule (J) 19.
The British Horseracing Authority confirmed that Dunne, who denied all but one of the charges against him, had submitted an appeal.
A spokesperson said: "The independent judicial panel has received an appeal from the representatives of Robbie Dunne in relation to the finding and penalty imposed on him by the disciplinary panel after its recent hearing.
"The independent judicial panel will now convene an appeal board for the hearing and liaise with representatives of all parties regarding a potential date for the hearing, which will be communicated in due course."
Dunne initially had seven days to lodge an appeal from the time the full verdict was published on January 6.
The report concluded: "In this case we were not troubled by any borderline decision on either guilt or sanction. The threshold in rule (J)19 was plainly crossed and this case overwhelmingly called for a penalty of some potency."
An application for an extension to January 20 was later granted – and the BHA statement followed.
Racing's ruling body added that it "will not comment" while the proceedings are ongoing.
