Nothing contained in this article shall permit the authority to issue bonds or revenue bonds at any time when the sum of:
exceeds 1 percent of the total revenue receipts, less refunds, of the state treasury in the fiscal year immediately preceding the year in which any such bond or revenue bond is to be issued; provided, however, that unless the director of the Water Supply Division of the authority has issued the certification provided for by Code Section 12-5-480, the authority, with the approval of the Governor and the commission established by Article VII, Section IV, Paragraph VII of the Constitution, may issue bonds for the purposes of Article 6 of Chapter 5 of Title 12 notwithstanding such limitations.
OCGA § 50-23-19