2009年IRC学习指南是一本全面的学习指南，帮助你更好地理解2009年国际居住法规。包括准则下的文本、说明和讨论的选择。2009年IRC学习指南是一本全面的学习指南，帮助你更好地理解2009年国际居住法规。它涵盖了准则的部分主题，包括准则文本、评注和代表所讨论条款的插图。

The 2009 IRC Study Companion, is a comprehensive study guide to help you better understand the 2009 International Residential Code. It covers select topics of the code and includes code text, commentary and illustrations representing the provisions under discussion.The 2009 IRC Study Companion, is a comprehensive study guide to help you better understand the 2009 International Residential Code. It covers select topics of the code and includes code text, commentary and illustrations representing the provisions under discussion.