A. The authority may issue refunding revenue bonds for the purpose of refinancing, paying and discharging all or any part of outstanding authority revenue bonds of any one or more or all outstanding issues:

(1)     for the acceleration, deceleration or other modification of payment of such obligations, including without limitation any capitalization of any interest thereon in arrears or about to become due for any period not exceeding one year from the date of the refunding bonds;

(2)     for the purpose of reducing interest costs or effecting other economies; (3)     for the purpose of modifying or eliminating restrictive contractual limitations pertaining to the issuance of additional bonds, otherwise concerning the outstanding bonds or to any facilities relating thereto; or

(4)     for any combination of those purposes.

B. The authority may pledge irrevocably for the payment of interest and principal on refunding bonds the appropriate pledged revenues which may be pledged to an original issue of bonds.

C. Bonds for refunding and bonds for any purpose permitted by the Border Development Act may be issued separately or issued in combination in one series or more.