In any case, the reintroduction of internal border control should remain an exception and should only be effected as a measure of last resort, for a strictly limited scope and period of time, based on specific objective criteria and on an assessment of its necessity which should be monitored at Union level.
I gcás ar bith, ba cheart gur eisceacht i gcónaí a bheadh i rialú ag teorainneacha inmheánacha a athbhunú agus níor cheart é a chur ar bun ach mar rogha dheiridh, ar feadh tréimhse theoranta agus le raon feidhme teoranta, bunaithe ar chritéir shonracha oibiachtúla agus ar mheasúnú ar an ngá atá leis, ar cheart faireachán a dhéanamh ina leith ar leibhéal an Aontais.