If deemed appropriate and proportionate, the contracting authority may require tenderers to submit a guarantee in advance to make sure that the tenders submitted are not withdrawn.
Má mheastar é a bheith iomchuí agus comhréireach, féadfaidh an t-údarás conarthach a cheangal ar thairgeoirí ráthaíocht a chur isteach roimh ré chun a ráthú nach n-aistarraingeofar na tairiscintí a rinneadh.