The club has been given a two-window transfer ban and fine by FIFA, but Chelsea have submitted their appeal against the decision.
Chelsea have submitted an appeal to FIFA over the club's two-window transfer ban, world football's governing body has confirmed.
FIFA's Disciplinary Committee sanctioned Chelsea last month over 29 cases in which the club were found to have breached regulations relating to the international transfer and registration of players under the age of 18.
Responding to the ban, which prevents Chelsea from registering any new signings before the end of the 2019-20 season, a club statement said they "categorically refute" FIFA's claims and would be appealing.
"The club wishes to emphasise that it respects the important work undertaken by FIFA in relation to the protection of minors and has fully cooperated with FIFA throughout its investigation," Chelsea said.
A FIFA spokesperson confirmed on Tuesday that Chelsea have now submitted their appeal against the ban.
Barcelona were handed a similar transfer ban in 2014 but an appeal by the LaLiga club pushed the punishment into the following year.
They subsequently signed Luis Suarez, Ivan Rakitic, Jeremy Mathieu, Claudio Bravo and Marc-Andre ter Stegen before the ban came into effect.