 An unincorporated association may also have a constitution which provides for the rights and remedies of the members as between themselves, and governs the conduct of the association.Because, in most legal systems, unincorporated associations do not have separate legal personality, this aspect of the constitutional documents is not applicable.In most legal systems unincorporated associations are not required to have formal written constitutions, but many of the larger and more complex organisations would be almost impossible to administer without one.