California Code, Streets and Highways Code - SHC § 36714

(a) If a city council proposes to levy a new or increased property assessment, the notice and protest and hearing procedures shall comply with Section 53753 of the Government Code.  Notwithstanding subdivision (e) of Section 53753 of the Government Code, the city may not establish the district or levy assessments if the assessment ballots submitted, and not withdrawn, in opposition to the proposed assessment exceed one-third of the total assessment ballots submitted, and not withdrawn, weighting those assessment ballots by the amount of the proposed assessment to be imposed upon the identified parcel for which each assessment ballot was submitted.

(b) If a city council proposes to levy a new or increased business assessment, the notice and protest and hearing procedure shall comply with Section 54954.6 of the Government Code, except that notice shall be mailed to the owners of the businesses proposed to be assessed.