Having a derogation means that a Member State is exempt from some, but not all, of the provisions which normally apply from the beginning of StageThree of EMU.
Ciallaíonn maolú a bheith ag Ballstát go bhfuil sé saor ó chuid de na forálacha a bhíonn i bhfeidhm de ghnáth ó thús Céim aTrí den AEA ach gan a bheith saor uathu ar fad.