Garage Fire-resistive door

It has been my understanding that a fire-resistive door (with self-closing device installed) be installed between an attached garage and the living space. I cannot find a reference to this in the IRC. Any idea where I might find a reference?

Door between house and garage rated 20 minutes or 1.75 " solid core and self closing
IRC 309.1 UBC 302.4x

There is no requirement for self closing doors with the IRC

Thanks guys - I can always count on Nachi!! :slight_smile: