Notwithstanding subdivision (a) of Section 1374.22, if the plan does not guarantee either premium rates or plan design or benefits for any specified time period greater than 180 days, it shall deliver the written notice by mail to the group contract holder at least 30 days prior to the group contract renewal effective date.
Source:
Section 1374.23, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HSC§ionNum=1374.23..