Section 35418 Of Chapter 3. Bonds, Acquisitions And Improvements From California Streets And Highways Code >> Division 18. >> Part 4. >> Chapter 3.

. Any provision of the ordinance, resolution, or indenture, except a provision as to the amount or time of payment of principal or interest on the bonds, may be later eliminated or modified by the legislative body, if the holders of not less than sixty percent (60%) of the outstanding bonds have agreed in writing to the elimination or modification.