The 2012 International Residential Code (IRC) for One- and Two-Family Dwellings, 1st Edition, is a model code published by the International Code Council (ICC). It provides comprehensive and unified standards for the construction, alteration, repair, and maintenance of detached one- and two-family dwellings and townhouses not more than three stories high. It  integrates building, plumbing, mechanical, fuel gas, electrical, and energy efficiency codes into a single, coordinated document for residential structures. It is organized into eight main parts and numerous appendices.

The 2012 International Residential Code (IRC) lies in its use as a comprehensive, enforceable standard for designing, building, inspecting, and maintaining safe and code-compliant one- and two-family dwellings and townhouses up to three stories high.

The 2012 International Residential Code (IRC) requires a focused understanding of the code’s structure, key provisions, and how to quickly navigate and apply them under exam conditions. These exams are commonly administered by the International Code Council (ICC) and are required for residential inspectors, plans examiners, and code officials.

The 2012 International Residential Code (IRC) for One- and Two-Family Dwellings (1st Edition) is a comprehensive model code developed by the International Code Council (ICC). It integrates building, plumbing, mechanical, fuel gas, energy, and electrical requirements into one code specifically tailored for residential construction. To aid understanding and usability, the code incorporates several visual and organizational tools that are especially valuable for contractors, inspectors, designers, and exam candidates.