Cal. Bus. & Prof. Code § 7464

(a) The performance of a single rideshare service or delivery service frequently requires an app-based driver to travel across the jurisdictional boundaries of multiple local governments. California has over 500 cities and counties, which can lead to overlapping, inconsistent, and contradictory local regulations for cross-jurisdictional services.
(b) In light of the cross-jurisdictional nature of the rideshare services and delivery services, and in addition to the other requirements and standards established by this chapter, the state hereby occupies the field in the following areas:
1. (1) App-based driver compensation and gratuity, except as provided in Section 7453.
2. (2) App-based driver scheduling, leave, health care subsidies, and any other work-related stipends, subsidies, or benefits.
3. (3) App-based driver licensing and insurance requirements.
4. (4) App-based driver rights with respect to a network company’s termination of an app-based driver’s contract.
(c) Notwithstanding subdivision (b), nothing in this section shall limit a local government’s ability to adopt local ordinances necessary to punish the commission of misdemeanor and felony crimes or to enforce local ordinances and regulations enacted prior to October 29, 2019.