As far as possible, those measures should safeguard entitlements previously granted and should aim to give skilled crew members reasonable time in which to apply for a Union certificate of qualification.
A mhéid is féidir, ba cheart do na bearta sin na teidlíochtaí a deonaíodh roimhe sin a choimirciú agus ba cheart dóibh féachaint le tréimhse réasúnta ama a thabhairt do bhaill oilte den chriú cur isteach ar theastas cáilíochta de chuid an Aontais.