AUTHORITY TO ISSUE BONDS.

(a) An authority may, by resolution, authorize the issuance of bonds in one or more series for a corporate purpose of the authority.

(b) An authority may issue refunding bonds to repay or retire bonds that the authority previously issued.

(c) An authority may determine the type of bond to issue, including bonds on which the principal and interest are payable:

(1) exclusively from the income and revenues of the housing project financed by the proceeds of the bonds or financed by those proceeds and a federal grant in aid of the project;

(2) exclusively from the income and revenue of designated housing projects regardless of whether the projects are financed by the bonds; or

(3) from general revenue of the housing authority.

(d) Bonds issued by an authority may be additionally secured by a pledge of revenue or by the mortgage of a housing project or other property of the authority. In addition, an authority may make credit agreements in conjunction with the issuance, payment, sale, resale, or exchange of bonds to enhance the security for or provide for the payment, redemption, or remarketing of the bonds and the interest on the bonds. The cost to the authority of the credit agreement may be paid from the proceeds of the sale of the bonds to which the credit agreement relates or from any other source, including revenues of the authority that are available for the purpose of paying the bonds and the interest on the bonds or that may otherwise be legally available to make those payments.

(e) Bonds issued by an authority are not a debt for the purposes of a constitutional or statutory debt limitation or restriction.