The *International Residential Code (IRC) for One- and Two-Family Dwellings* provides essential guidelines for the construction, safety, and design of single-family and duplex homes. Developed by the International Code Council (ICC), this code sets standards to ensure residential buildings are safe, sustainable, and energy-efficient. The IRC covers aspects such as structural integrity, fire safety, plumbing, and electrical systems, providing a uniform approach to residential construction. It integrates the latest building practices and technology, helping builders and designers create homes that meet contemporary needs and regulatory requirements. By standardizing building practices, the IRC enhances safety and livability in residential structures.