According to the NEC:
"Openings around electrical penetrations through fire-resistant-rated walls, partitions, floors, or ceilings shall be firestopped using approved methods to maintain the fire resistance rating."
So, I'm sitting at a table in a coffee shop in a brand new office building and I see a convenient floor receptacle in which to plug my laptop. The receptacle is one of those combination power, phone, network, etc. units. I flip open open one of the covers and find that it is for a telephone or LAN outlet which hasn't yet been installed. I found myself staring straight into the parking garage below.
In my experience, a rated floor has always been required between a parking garage and other occupancies. So, how to they get away with not even putting a metal box behind the (plastic) cover?