No bank, nor savings and loan association having its principal place of business outside of Alabama may engage in the banking or savings and loan business in Alabama under the provisions of this section; provided, that the superintendent is authorized to enter into agreements with the appropriate regulatory authorities of other states or of the United States, under the terms of which banks or savings and loan associations of such foreign state or subject to federal regulatory jurisdiction, and banks and savings and loan associations having their principal place of business in Alabama are given and may exercise reciprocal rights.
Ala. Code § 5-2A-7 (1975)