The units of account referred to in the second paragraph of article L. 131-1 may consist of units in alternative investment funds open to professional investors, covered by sub-section 3 of section 2 of Chapter IV of Title I of Book II of the Monetary and Financial Code, subject to conditions relating in particular to the financial situation, knowledge or experience of the contracting party. A Conseil d’Etat decree sets these conditions and specifies the funds concerned.