These codes, jointly known as the International Building Code (IBC), are widely used in the United States of America. The system that was in force since the 1900s was based on the building regulations developed by three regional model code groups. These were the BOCAI or the Building Officials and Code Administrators International based in the East Coast and throughout the Midwest regions, the SBCCI or the Southern Building Code Congress International in the Southeast, and the International Conference of Building Officials or ICBO in the West Coast. The regional codes were effectively applied and responsive to the regulatory demands made by the various local jurisdictions.
By the early 1990s, it was more than obvious that there was a specific need for a single and well co-ordinated model acceptable on a national level. The three model code groups then combined their individual efforts into establishing the International Code Council (ICC) in 1994. The effort and aim was driven towards developing standards that would not be limited by regional restrictions. It took extensive research and three years of dedicated effort before the first edition of the International Building Code was published in 1997. The IBC was developed on the basis