California 2025 Legislative Session Start Date. Our annual calendar provides information on legislative sessions in each state, district and territory, including regular legislative session dates as well as special session dates. Several new laws are set to come into effect in california in 2025, impacting millions of residents.

The house and senate have released their 2025 legislative schedule, announcing the dates when their chamber plans to be in session. The next significant date to keep in mind is monday, january 6, when the legislature will reconvene in earnest to begin the business of governing california.