However, in view of the long duration of some postings and in acknowledgment of the link between the labour market of the host Member State and the workers posted for such long periods, where posting lasts for periods longer than 12 months host Member States should ensure that undertakings which post workers to their territory guarantee those workers an additional set of terms and conditions of employment that are mandatorily applicable to workers in the Member State where the work is carried out.
Mar sin féin, i ngeall ar a fhad a mhaireann postuithe faoi leith agus mar aitheantas ar an nasc atá idir margadh saothair an Bhallstáit óstaigh agus na hoibrithe a bhíonn ar postú inti ar feadh na dtréimhsí fada sin, i gcás inar faide ná 12 mhí a mhaireann an postú, ba cheart do na Ballstáit óstacha a áirithiú go ráthódh na gnóthais a sheolann oibrithe chuig a gcríocha do na hoibrithe sin go mbeadh téarmaí agus coinníollacha fostaíochta breise ann a bheadh infheidhme go sainordaitheach maidir le hoibrithe sa Bhallstát sin ina bhfuil an obair á déanamh.