Article 5. Refunding Bonds of California Health And Safety Code >> Division 6. >> Part 1. >> Chapter 6. >> Article 5.

The board may cause refunding bonds to be issued for the purpose of refunding any or all outstanding bonds of the district.
Refunding bonds shall be issued and delivered only when the bonds to be refunded have matured or are about to mature or are subject to retirement before maturity, or, if the outstanding bonds are not subject to retirement the retirement thereof shall have been assured or obtained by consent of the holders thereof.
Except as otherwise provided in this article, refunding bonds shall be issued in substantially the manner and form prescribed for the issuance of other bonds under this part and the provisions of this part concerning the authorization, certification, issuance, and sale of bonds shall be applicable to bonds issued under this article.
The board desiring to refund any of its bonds may formulate a proposed plan for that purpose and shall call an election for the purpose of authorizing the issuance of such refunding bonds. The election shall be called and held and the result thereof determined and declared substantially in the same manner as provided by this part for the issuance of other bonds of the district.
Only a majority vote shall be required to authorize the issuance of refunding bonds.
The maturity date of refunding bonds shall be fixed by the board but in no case shall the maturity of any such bonds be more than forty years from the date thereof.
The rate of interest on refunding bonds shall not exceed 8 percent per annum payable semiannually.
Refunding bonds may be issued in a principal amount sufficient to provide funds for the payment of the bonds to be refunded thereby and in addition all expenses incidental to the calling, retiring or payment of such outstanding bonds and the issuance of such refunding bonds.