The ECA on Tuesday demanded a greater say in FIFA's decisions and criticised FIFA for the confusion over speculation of a possible switch of the 2022 Qatar World Cup to the winter.
On Monday, FIFA president Sepp Blatter performed an apparent u-turn on his previous suggestions that the 2022 World Cup would take place in the winter by saying a summer tournament in Qatar had been "settled".
"The time for monopolies is over. Football needs democracy and transparency," said ECA chairman Karl-Heinz Rummenigge.
"ECA members agree that all clubs must be meaningfully involved in all decisions affecting club football. Now is the time for change," added Rummenigge after the 136-member association's general assembly in Geneva.
In a statement, the ECA expressed its "concern on the way matters of such importance are managed by football's world governing body" and its opposition to the "disruption" of the possibility of a winter World Cup.
