The definitions set forth in this section shall govern the construction and meaning of the terms used in this chapter:
(a) “Local agency” means any city, county, special district, or other public entity in the state. It includes a charter city or a charter county.
(b) “Public transit employee” means an employee of any transit district of the state, an employee of the Golden Gate Bridge, Highway and Transportation District, and an employee of any local agency who is employed to work for transit service provided by that agency.