The new 2009 International Building Code® is founded on broad-based principles that make possible the use of new materials and new building designs, and addresses all buildings, except one- and two-family dwellings and townhouses up to three stories high. This extensive code also comes with a bonus CD included that contains helpful resources, excerpts from code references, Internet links to many useful tools, historical background on code changes, informative articles from ICC's Building Safety Journal, and much more.