(a) It is the express intention of the Georgia General Assembly to provide a unified and orderly method of permitting limited interstate banking. Thus, if any provision of this part establishing the framework within which interstate banking may occur or providing for registration, approval, and supervisory powers of the department and the commissioner is determined by final, nonappealable order of any Georgia or federal court of competent jurisdiction to be invalid or unconstitutional, the remaining provisions of this part shall not be affected and shall continue to apply to any bank, bank holding company, foreign bank, or other person or circumstance.

(b) Nothing contained in this part shall be construed to amend or modify the provisions of any other part of this chapter governing the supervision or regulation of banks and bank holding companies, as defined in this part, or the organization and powers of the department and the commissioner with respect thereto as provided in such other parts.