However, in the event that the lifting of controls at internal borders cannot be achieved by the start of operations of the EES, it is necessary to specify the conditions for the operation of the EES by those Member States which do not apply the Schengen acquis in full and lay down the provisions for the operation and use of the EES at internal borders where controls have not yet been lifted.
I gcás, áfach, nach bhfuil sé indéanta deireadh a chur leis na rialuithe teorann ag teorainneacha inmheánacha faoi thús oibríochtaí EES, is gá na coinníollacha a shonrú maidir le hoibriú EES ag na Ballstáit sin nach gcuireann acquis Schengen i bhfeidhm ina iomláine, chomh maith leis na forálacha a leagan síos maidir le EES a oibriú agus a úsáid ag teorainneacha inmheánacha nach bhfuil deireadh curtha leis na rialuithe sin fós.