Self-regulation appears to be a special institution where economic actors establish their own rules of economic activity for themselves in a specific business field. At the same time they are the object of control within these rules and the subject of legal management of the controller. Self-regulation contains necessary prerequisites for fundamental resolution of the problem of "controlling the controller". The necessary and sufficient set of five self-regulation organization functions provides efficiency of self-regulation as the institutional arrangement. The voluntary membership in a self-regulation organization is essential for ensuring self-enforcement of institutional arrangement of self-regulation.