state that, when Union institutions award contracts on their own account, the law which applies to the contract is Union law complemented, where necessary, by a national law or, if necessary for building contracts, exclusively national law;
a rá, nuair a dhámhann hinstitiúidí de chuid an Aontais conarthaí ar a gcuntas féin, gurb é an dlí a bhaineann leis an gconradh, dlí an Aontais, á chomhlánú, más gá, ag an dlí náisiúnta nó, más gá do chonarthaí tógála, an dlí náisiúnta go heisiach;