In order to update, add, or change a statute a bill must be passed by the legislature and then presented to the governor. If the statute is passed, it will go into effect:

When a bill is passed by the legislature and signed by the governor, it typically goes into effect on the next January 1st unless the legislation specifies an alternative effective date. This standard rule applies to most statutes in California, allowing for a clear time frame for implementation and public awareness. The choice of January 1st is significant as it aligns with the start of the new calendar year, establishing a systematic approach for both governmental agencies and citizens to adapt to the new law.

In contrast, some laws might have immediate implementation if they are urgent or have specific provisions indicating so; however, the general practice favors the January 1st effective date for new legislation unless otherwise stated. Other options like the end of the current fiscal year or the beginning of the next calendar year do not typically align with how the effective date of statutes is structured unless specified in the bill itself.