ECN Forum Forums General Topics of the Trade General Discussion Area Service change, do I need to add Arc Supression?

Hi,
I almost never do service changes, (just for friends) I have been asked to do a 100 amp service change and trying to price it for this person. I recently updated my license and the instructor warned us about these new "arc suppression devices" which will be needed for all bedrooms. My question is this, when I do the service change, will the inspector make me install these arc suppression devices? -- Also if I want to do the service in copper what size Service Entrance cable?

Thanks