Ala. Code § 2-6-123: Federal Income Taxation.

The corporation shall have the power to make payments to the United States of America as the directors deem necessary to cause the interest on any bonds of the corporation to be and remain exempt from federal income taxation. The corporation shall have the power to make agreements respecting the investment of funds of the corporation necessary in order that the interest income on bonds of the corporation be and remain exempt from federal income taxation.