Section 31-7-78 - Issuance and sale of negotiable revenue anticipation certificates(a) Every authority is authorized to provide by resolution for the issuance and sale of negotiable revenue anticipation certificates for the purpose of: (1) Paying all or any part of the cost of the acquisition, construction, alteration, repair, modernization, and other charges incident thereto in connection with any facilities or project;(2) Paying all or any part of the cost of paying off or refinancing any outstanding debt or obligation of any nature owed by such authority or by persons who in furtherance of the authority's public purposes lease facilities from such authority pursuant to this article, provided that such outstanding debt or obligation was incurred in connection with the acquisition or construction of facilities of the authority or any such lessee; and(3) Refunding outstanding certificates.(b) In addition to paying from the proceeds of any revenue anticipation certificate issue interest accrued during the construction period of any project and other incidental and customary expenses such as those for engineering, inspections, and fiscal and legal services, the authority may fund as a part of such issue and set aside from the proceeds thereof an amount of money not exceeding 15 percent of the principal amount of such issue for the purpose of establishing a debt service reserve with respect to the principal and interest requirements of such issue. The authority may issue such types of certificates as it determines appropriate, including certificates on which principal and interest are payable: (1) Exclusively from income or revenues of the operation of the authority financed with the proceeds of such certificates or together with such proceeds and grants from the federal government, or any instrumentality, or other person or corporation in aid of such projects;(2) Exclusively from income and revenues of certain designated projects; or(3) From revenues of the authority generally, including any debt service reserve established with a portion of the certificate proceeds. Any such certificate may be additionally secured by the hypothecation of any revenues received from participating units or subdivisions and by mortgage of the project or any part thereof constituting real or personal property of the authority, except as prohibited by law.