Radon Control in New Home Construction: Developments in State Policy

Michigan

In 2005, Michigan enacted legislation requiring the state’s Department of Consumer and Industry Services to promulgate a building code that incorporates the international codes and that is applicable throughout the state. Mich. Comp. Laws Ann. 125.1504, available at: http://www.legislature.mi.gov
/(S(bsjikjb15nmrs1rtnpmmpsy0))/mileg.aspx?page=getObject&objectName=mcl-125-1504. The Department then incorporated the International Residential Code into the Michigan Residential Code and included IRC Appendix F. Mich. Admin Code Regs. 408.30401, available at: http://www.state.mi.us
/orr/emi/admincode.asp?AdminCode=Single&Admin_Num=40830401&Dpt=&RngHigh=40900006. The state lists nine Michigan counties that are designated as Zone 1 counties (based on the EPA Map of Radon Zones) and thus subject to the radon control requirements in Appendix F. The state subsequently updated its building code to incorporate the 2006 version of the IRC, including Appendix F. See http://www.michigan.gov/documents
/dleg/dleg_bcc_2006_002lg_building_code_rules_230404_7.pdf.

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