Number of California Bills by Code

I have often wondered about the number of bills in the California Legislature each year that affect the twenty-nine different codes. California’s 29 Codes, beginning with the Business & Professions Code and ending with the Welfare & Institutions Code, contain over 156,000 statutes. So, how many bills each Session affect these 29 Codes?

In the following chart, I look at the number of bills adding, amending, or repealing sections of California’s Codes during each 2-year Session beginning with the 2015-16 Session and ending with the 2023-24 Session. The following chart contains those numbers from the past decade:

Most interesting to me is the relative consistency each Session with the number of bills affecting the same Code. In other words, during the last decade, roughly the same number of bills each Session affect an individual Code. For example, during the prior four, 2-year sessions, the number of bills affecting the Revenue & Taxation Code have been: 448; 449; 496; and, 430.