The 2003 International Existing Building code (IEBC) contains requirements for improving and upgrading existing buildings to conserve resources and building history while achieving appropriate levels of safety. This is a comprehensive, excellent reference for code officials, engineers, architects, inspectors, plans examiners, contractors and anyone who needs a better understanding of these regulations. Fully compatible with all the International Codes, the 2003 IEBC provides up-to-date, comprehensive coverage that establishes minimum regulations for building systems using prescriptive- and performance-related provisions.
Found in 1994, the non-profit organization of the International Code Council (ICC) develops "a single set of comprehensive and coordinated national model construction codes".