Elections Code section 9014
(a)
A petition for a proposed initiative or referendum measure shall not be circulated for signatures prior to the official summary date.(b)
Subject to subdivision (d), a petition with signatures for a proposed initiative measure shall be filed with the county elections official not later than 180 days from the official summary date, and a county elections official shall not accept a petition for the proposed initiative measure after that period.(c)
Subject to subdivision (d), a petition for a proposed referendum measure shall be filed with the county elections official not later than 90 days from the date the legislative bill was chaptered by the Secretary of State, and a county elections official shall not accept a petition for the proposed referendum measure after that period.(d)
If the last day to file a petition pursuant to subdivision (b) or (c) is a holiday, as defined in Chapter 7 (commencing with Section 6700) of Division 7 of Title 1 of the Government Code, the petition may be filed with the county elections official on the next business day.
Source:
Section 9014, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=ELEC§ionNum=9014. (accessed Jun. 2, 2025).