Government Code section 9510.5


There shall be two series of bill chapter numbers for each two-year regular session of the Legislature. Bills deposited with the Secretary of State from the beginning of the two-year session through December 31 of the odd-numbered year shall be designated “Statutes of [odd-numbered year], Chapter ____.” Bills deposited with the Secretary of State after December 31 of the odd-numbered year shall be designated “Statutes of [even-numbered year], Chapter ____.” Concurrent resolutions, joint resolutions, and proposed constitutional amendments adopted by the Legislature shall be chaptered as resolution chapters with a different series of numbers than those assigned to bills but shall otherwise be numbered and designated in the same manner as bills enacted into law.

Source: Section 9510.5, https://leginfo.­legislature.­ca.­gov/faces/codes_displaySection.­xhtml?lawCode=GOV§ionNum=9510.­5.­ (updated Jan. 1, 1973; accessed Jul. 21, 2025).

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Verified:
Jul. 21, 2025

§ 9510.5's source at ca​.gov