ICC recognizes that the I-Codes cannot be fully implemented without necessary support. ICC invests considerable resources to support users of the I-Codes through code commentaries, code comparisons, handbooks, self-study guides, software and other related products.

The code commentaries are reliable, easy-to-use references that demonstrate the code, explain when and how to apply code requirements, and include the entire code text along with historical and technical background information. As an example, the 2-volume International Building Code Commentary provides application examples, explanatory material, code development history, illustrations and a bibliography of additional reference material in its more than 1,700 pages.

Comparisons between I-Codes and other model codes, state and large-city codes also have been developed. Such resources can help firestop contractors understand the I-Codes and determine how to respond to their requirements.