A purchaser may reserve the same contract or the same lot of a contract both for economic operators who meet the conditions of article L. 2113-12 and for those who meet the conditions of article L. 2113-13.
A purchaser may not reserve the same contract or the same lot of a contract both for economic operators who meet the conditions of article L. 2113-13-1 and for economic operators mentioned in the first paragraph of this article who do not meet these same conditions.