REFUNDING BONDS.

(a) A municipality may issue refunding bonds to refund all or any part of its outstanding bonds issued under this subchapter, including matured but unpaid interest coupons. The comptroller shall register refunding bonds on the surrender and cancellation of the bonds being refunded. The refunding may take place in one delivery or in installment deliveries.

(b) The refunding bonds may be payable from the same sources as the bonds to be refunded or from other additional sources.

(c) A municipality may, in the order or resolution authorizing the issuance of the refunding bonds, provide for the sale of the refunding bonds and the deposit of the proceeds in the place at which the bonds to be refunded are payable. In that case, the refunding bonds may be issued before the cancellation of the bonds to be refunded.

(d) If refunding bonds are issued before cancellation of the bonds to be refunded, the municipality shall deposit an amount sufficient to pay the principal of and interest on the bonds to be refunded to their maturity dates, or to their option dates if the bonds have been called for payment before maturity according to their terms, in each place at which the bonds to be refunded are payable. The comptroller shall register the refunding bonds without the surrender and cancellation of bonds to be refunded.