A change in compensation does not apply to a councilman during his term of office; however, the prohibition herein expressed shall not prevent the adjustment of the compensation of all members of a council serving staggered terms whenever one or more members of such council becomes eligible for a salary increase by virtue of his beginning a new term of office.
Source:
Section 36516.5, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=GOV§ionNum=36516.5..