QPR chief executive Lee Hoos says the west London club are "vehemently opposed" to the proposed resumption of the Sky Bet Championship on 20 June.
The Premier League announced last Thursday that play is due to return on 17 June following the coronavirus suspension that began in mid-March.
The EFL followed suit on Sunday evening when announcing that the Championship is set to restart around the same time - news that shocked and angered QPR.
"I am absolutely stunned by this announcement, as is our director of football Les Ferdinand and our manager Mark Warburton," chief executive Hoos said.
"Incredibly, there has been absolutely no consultation with individual clubs nor with the Championship doctors' working group by the divisional representatives - or anyone else in the Football League - regarding this matter.
"On top of that, we were only made aware of the statement 40 minutes before it was made public.
"Having spoken with Les and Mark, they share my views. We are vehemently opposed to this schedule.
"The players haven't even returned to full-contact training at this moment and yet they are now expected to be in a position to play at a competitive level in just three weeks' time.
"I have made our feelings known to the EFL and, having spoken with a number of CEOs at other Championship clubs, I am not a lone voice on this matter.
"We are absolutely appalled."
QPR 'appalled' and 'vehemently opposed' to Sky Bet Championship schedule
