Can bus pass be used on both bus and subway?

-In America, most cities, can you buy a pass that can be used both on bus and subway? Thank you.well it depends on the citty and what type of pass you have

like in los angeles a day pass or pass is valid on any service operated by metro

but is NOT valid on METROLINK

yet metrolink passes and tickets are valid on metro services
In NYC, yes. In other cities, I'm not completely sure.