for contracts declared to be secret or for contracts whose performance must be accompanied by special security measures, in accordance with the administrative provisions in force or when the protection of the essential interests of the Union so requires, provided the essential interests concerned cannot be guaranteed by other measures; such measures may consist of requirements to protect the confidential nature of information which the contracting authority makes available in the procurement procedure;
i gcás conarthaí a ndearbhaítear gur conarthaí rúnda iad nó conarthaí nach mór a bhfeidhmiú a bheith á thionlacan ag bearta speisialta slándála, i gcomhréir leis na forálacha riaracháin atá i bhfeidhm nó nuair is gá sin chun bunleasanna an Aontais a chosaint, ar an gcoinníoll nach féidir na bunleasanna lena mbaineann a ráthú le bearta eile; féadfaidh bearta den sórt sin ceanglais a áireamh chun cosaint a dhéanamh ar rúndacht na faisnéise a chuireann an t-údarás conarthach ar fáil sa nós imeachta soláthair;