Canbus friendly not required...It depends which ones. Some will say on the packet that they aren't for road use and some have the BS mark.
Remember to get canbus friendly ones - I assume the Civic is the same as any other vehicle in this respect.
Probably wanted them for his carWhen I had my car MOT'd the guy removed one LED sidelight and replaced it with a regular bulb "to make it legal". I've put the LED back.
Very curious as to why he did that!