i dont know about some stuff, this post may make some people confused...
the b20 is capable of passing smog in a civic as long as the motor is the same year or newer (my friend has it in his del sol and passes all the time)...JDM motor well iunno about all of them but i know some people that pass with jdm motors also, and they also tell me that the motor is the same year or newer...And yes this is in california...iunno if their either lying to me, or its possible...is there a website or something i can look into that actually shows proof of what and what not to do about motor swaps...