Section 4990 Of Article 4. Bonds From California Health And Safety Code >> Division 5. >> Part 3. >> Chapter 5. >> Article 4.

. The number of bonds to be paid each year need not be the same, and the governing body may fix maturities so that the number of bonds retired each year will, in the discretion of the governing body, be most equitable and just; however, all bonds shall be completely paid within forty years from date of issue.