FYI the international building code has a deceptive name. It's essentially the US building code.
> it is the International Building Code ... used in multiple locations worldwide, including the 15 countries of the Caribbean Community and Common Market (CARICOM), Jamaica, and Georgia. Furthermore, the IBC has served as the basis for legislative building codes in Mexico, Abu Dhabi, and Haiti, among other places.
From the 2018 international building code (which is what the US building code is based on): https://up.codes/viewer/illinois/ibc-2018/chapter/10/means-o...