The International Building Code, or IBC, regulates all types of building construction and design within most parts of the United States. The code exempts detached one and two-family dwellings and townhouses with less than four storeys.
The International Building Code started as a collective effort developed by three regional model groups: the Building Officials Code Administrators International, the Southern Building Code Congress International and the International Conference of Building Officials.
The code addresses minimum requirements for ensuring safety, public health, and general welfare of the occupants of new and renovated buildings and structures. It outlines roofing and ventilation requirements as well as energy efficiency regulations that require individuals to construct buildings in accordance with IBC insulation requirements for roofing systems.
A significant portion of the code deals with prevention of fires and stipulates criteria for the size, number and location of exits in construction and design of buildings. The IBC also details acceptable building heights and quality of material used in construction. It outlines interior finishing standards, regulates elevator and escalator designs and ensures accessibility of buildings to accommodate physically challenged persons.
The International Code Council develops, publishes and manages the IBC. It published the first edition in 1997 and several revisions.