As Georgia only adopts a new edition of the International codes every six years there are many changes in requirements and many new products that have to be addressed. The National Uniform Plumbing Code applies generally to the entire country. 1503.4.1 Secondary (emergency overflow) drains or scuppers. The information below states the requirements as interpreted from the current 2018 IBC/IPC. Description of International Plumbing Code (IPC) 2003. The International Plumbing Code and the International Building Code specify the required number and locations of plumbing fixtures in buildings.