(805 ILCS 10/12) (from Ch. 32, par. 415-12)
    Sec. 12. No corporation shall open, operate or maintain an establishment for any of the purposes for which a corporation may be organized under this Act without a certificate of registration from the regulating authority authorized by law to license individuals to engage in the profession or related professions concerned. Application for such registration shall be made in writing, and shall contain the name and address of the corporation, and such other information as may be required by the regulating authority. Upon receipt of such application, the regulating authority, or some administrative agency of government designated by it, shall make an investigation of the corporation. If the regulating authority is the Supreme Court it may designate the bar or legal association which investigates and prefers charges against lawyers to it for disciplining. If such authority finds that the incorporators, officers, directors and shareholders are each licensed pursuant to the laws of Illinois to engage in the particular profession or related professions involved (except that the secretary of the corporation need not be so licensed), and if no disciplinary action is pending before it against any of them, and if it appears that the corporation will be conducted in compliance with the law and the regulations and rules of the regulating authority, such authority, shall issue, upon payment of a registration fee of $50, a certificate of registration.
    Upon written application of the holder, the regulating authority which originally issued the certificate of registration shall renew the certificate if it finds that the corporation has complied with its regulations and the provisions of this Act.
    The fee for the renewal of a certificate of registration shall be calculated at the rate of $40 per year.
    The certificate of registration shall be conspicuously posted upon the premises to which it is applicable, and the professional corporation shall have only those offices which are designated by street address in the articles of incorporation, or as changed by amendment of such articles. No certificate of registration shall be assignable.
(Source: P.A. 83-863.)