This short course provides a concise summary and comparison of Appendix AF of the International Residential code modified in 2021 and the ANSI/AARST 2020 CCAH Standard.  Although similar in intent there are some subtle differences that an installer of radon system needs to be aware of when quoting a project. This course consists of a video presentation with downloadable slides, a short quiz with feedback and links to both ANSI/AARST standards and ICC Appendix AF.

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