I write it up regardless of where I'm inspecting. It's a good idea to have a fire separation door between the garage and the house. Whether it is required or not doesn't change my opinion of why I write it. If they ask (which is almost never) I will tell them that it may not be required, but I still think it is a good idea. I've never had a problem with that explanation, which is the same for smoke alarms, GFCI's, and other safety things that change over time.

__________________
Jim Robinson
New Mexico, USA