By way of derogation from article R. 3126-4, when the estimated value of the concession contracts referred to in b of 2° of article R. 3126-1 is equal to or greater than the European threshold set out in a notice annexed to this code, the awarding authority publishes the concession notice in the Official Journal of the European Union and in the Bulletin officiel des annonces des marchés publics or in a legal gazette.