Except as set forth in Section 22.431, this chapter may be amended or modified but not repealed by the County Board of Supervisors without a vote of the people. However, as required by Article XIII C of the California Constitution, voter approval is required for any amendment that would expand, extend, or increase the rate of any tax levied pursuant to this chapter beyond the maximums set forth in this chapter. The people of the County of San Diego affirm that the following actions shall not constitute an increase of the rate of a tax:
(a) The restoration or adjustment of the rate of the tax to a rate that is no higher than that allowed by this chapter, in those circumstances where, among others, the County Board of Supervisors has previously acted to reduce the rate of the tax or is incrementally implementing an increase authorized by this chapter;
(b) An action that interprets or clarifies (i) the methodology of applying or calculating the tax or (ii) any definition applicable to the tax, so long as the interpretation or clarification (even if contrary to some prior interpretation or clarification) is not inconsistent with the provisions of this chapter; or
(c) The collection of the tax imposed by this chapter even if the County had, for some period of time, failed to collect the tax.