California Code, Public Utilities Code - PUC § 22557

(a) The district may issue temporary negotiable notes bearing interest at a rate not exceeding 8 percent per annum. However, these notes shall be general obligations of the district payable from revenues and taxes, unless paid from other available funds of the district, in the same manner as bonds of the district. The maturity of the notes shall not be later than 20 years from the date thereof, and the total aggregate amount of the notes outstanding at any one time shall not exceed 2 percent of the assessed valuation of the taxable property in the district, or if the assessed valuation is not obtained, 2 percent of the county auditor's estimate of the assessed valuation of the taxable property of the district evidenced by his or her certificate. The total aggregate amount of these notes outstanding at any one time shall further not exceed the sum of five hundred thousand dollars ($500,000).

(b) Any note proposed to be issued pursuant to subdivision (a) with a term longer than five years shall not be issued until after a public hearing is conducted with respect to the issuance and a resolution is adopted approving the issuance. At least 15 days prior to the public hearing, the board shall cause notice of the hearing to be published pursuant to Section 6061 of the Government Code in a newspaper published in the principal county. The resolution shall be subject to referendum pursuant to Section 9340 of the Elections Code and shall so provide. Within 15 days after adoption of the resolution of issuance, the board shall cause the resolution to be published at least once in a newspaper of general circulation published in the principal county, or if there is none, posted in at least three public places in the district.