Thank you for your question. I look forward to working with you to provide you the information you are seeking for educational purposes only.
For starters, here is what CA Labor Code 555 states clearly:
555. Sections 550, 551, 552 and 554 of this chapter are applicable to cities which are cities and counties and to the officers and employees thereof.
So the statute clearly says that the enumerated sections apply to cities that are cities and counties.
The court in CA had an opportunity to rule on this very thing in the case of Johnson v. Arvin-Edison Water Storage District, where the CA appeals court confirmed that unless a statute specifically provides otherwise, public agencies are exempt from wage
and hour provisions of California's Labor Code.
The Court of Appeal held that absent express statutory authorization, governmental agencies are not subject to a general statute like the Labor Code. The court stated that for example in Labor Code Section 555, the Legislature specifically stated that provisions of that chapter (sections 550-552 and 554) pertaining to maximum consecutive working days (generally stating that employees are entitled to one day of rest in seven days of work)," are applicable to cities which are cities and counties and to the officers and employees thereof." However, those statutes are not applicable to ALL government employees, only those specified by the statutes.