forbid any contact between the contracting authority and the tenderer during the procedure, save, exceptionally, under the conditions laid down in Article 169, and, where provision is made for an on-the-spot visit, specify the arrangements for such a visit;
teagmháil ar bith idir an t-údarás conarthach agus an tairgeoir le linn an nós imeachta a thoirmeasc, ach amháin, go heisceachtúil, faoi na coinníollacha a leagtar síos in Airteagal 169, agus, i gcás ina ndéantar foráil do chuairt ar an láthair, na socruithe do chuairt den sórt sin a shonrú;