When an employee is appointed as representative of an association governed by the law of 1st July 1901 relating to the contract of association or entered in the register of associations in application of the local civil code applicable to the departments of Bas-Rhin, Haut-Rhin and Moselle or of a mutual insurance association within the meaning of the mutual insurance code to sit on a body, whether consultative or not, set up by a legislative or regulatory provision with a State authority or a local authority, the employer shall allow him the time necessary to attend meetings of this body.