On any vehicle that came from the factory with a converter installed.
Not unless it was originally equipped with a catalytic converter which is unlikely. If not, then NO it is not required.
19751975
If it was built with one, it is required.
No.
It is required by the federal government.
It is required by the federal government.
Yes, legally and for the computer to function correctly you will need a catalytic converter.
They are required for smog.
catalytic converter
I'm pretty sure that all gasoline or diesel powered vehicles in the U.S are required to have a catalytic converter. Yes, it is illegal to remove a catalytic converter in any state.
Legally you can only replace a catalytic converter with another catalytic converter.
Yes, it has a catalytic converter.