Section 30303 Of Article 6. Custody And Use Of Money From California Streets And Highways Code >> Division 17. >> Chapter 1. >> Article 6.

. Any surplus which exists in the particular acquisition and construction fund shall be applied to the retirement, by purchase or call, of bonds issued for the acquisition or construction of the particular toll bridge or other highway crossing, transportation facilities, or additional transportation facilities. If the bonds cannot be purchased at a price satisfactory to the commission and are not by their terms callable prior to maturity, the surplus shall be paid into the fund applicable to the payment of principal and interest of the bonds and shall be used for that purpose. The proceedings authorizing the issuance of bonds may provide limitations and conditions upon the time and manner of applying the surplus to the purchase and call of outstanding bonds and the terms upon which they shall be purchased or called, and such limitations and conditions shall be followed and observed in the application and use of the surplus. All bonds retired by purchase or call shall be immediately canceled.