This volume codifies the regulations governing the alteration, repair, enlargement, and change of occupancy of existing buildings within North Carolina. It is based on the 2012 International Existing Building Code, providing a framework for ensuring safety and compliance for structures that predate current building standards. The code addresses specific challenges related to the rehabilitation and preservation of the built environment, offering guidance on materials, methods, and performance requirements.

This code is regarded as a critical regulatory document for architects, engineers, contractors, and building officials operating in North Carolina. It provides the definitive legal requirements for working with existing structures, ensuring that renovations and modifications meet established safety and performance benchmarks. The adoption of the International Existing Building Code as a base signifies an alignment with national standards while incorporating state-specific amendments.