Section 22657 Of Chapter 5. Financial Provisions From California Streets And Highways Code >> Division 15. >> Part 2. >> Chapter 5.

. If there is a deficit in the improvement fund of an assessment district during any fiscal year, the legislative body, from any available and unencumbered funds of the local agency, may provide for:
  (a) A contribution to the improvement fund.
  (b) A temporary advance to the improvement fund and direct that the advance be repaid from the next annual assessments levied and collected within the assessment district.