Eurocontrol did previously have an office which issued exemptions to the requirement for exactly that reason. However, my research has uncovered that it closed in 2009 when the regulation was originally supposed to have been implemented. Implementation has subsequently been delayed by many members of EASA, but the office was never re-opened.
Current exemptions will remain in force for the life of an aircraft, but ONLY until it changes ownership, apparently. The only route open to people now is to seek an exemption from each individual member state for their airspace, which makes it a bit more challenging to achieve!