Entry Type ID Date Applicable Rating System Primary Credit Inquiry (LIs) Ruling (LIs) Related Addenda/LIs Related Resources Campus Applicable Internationally Applicable Country Applicability Reference Guide (Addenda) Page (Addenda) Location (Addenda) Description of Change (Addenda) "Regional ACP" "100001893" "2014-07-01" "Homes, Mid-rise" "EQp4 - Radon-resistant construction " "None" "None" "X" "Canada" "LEED Reference Guide for Homes Design and Construction" "399" "Requirements, Case1 and Case 2" "Add the following as a Canada ACP under local equivalents for projects outside the U.S.\n\n ""Cities in Canada that have been proven to have an average radon concentration of 4 pCi/L (150 Bq/m3) or less through testing in accordance with the Health Canada Guide for Radon Measurements in Dwellings (with a minimum of 50 tests) are considered equivalent to EPA Radon Zone 2, and therefore are exempted from the radon requirements of this prerequisite."" "