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The Significant Changes to the International Residential Code 2021 Edition introduces several significant updates aimed at enhancing safety, energy efficiency, and overall building performance. Gain full access to the most critical updates in the International Residential Code®, including the real-world application of those changes and how they originated — all in a single, easy-to-use resource. SIGNIFICANT CHANGES TO THE INTERNATIONAL RESIDENTIAL CODE® 2021 Edition provides a comprehensive analysis of significant changes since the 2018 IRC®, offering key insights into its contents and implications. Coverage includes changes made to building, energy, mechanical, fuel gas, plumbing, and electrical provisions. Each change analysis features the affected code sections and identifies the change with strikethroughs and underlines to show modifications to the existing language. Each change is accompanied by a quick summary, detailed illustrations, and discussion of its significance, which brings the technical jargon of the code to life in a real-world setting. The attention to detail, logical organization, and thorough yet concise coverage found in this resource make it an ideal tool for transitioning from the 2018 IRC®.