DescriptionANSI/AARST RMS-LB-2018 REV. 12/20 Radon Mitigation Standards for Schools and Large Buildings This standard specifies practices, minimum requirements and general guidance for mitigation of radon in existing schools and large buildings, including both low-rise and high-rise schools and large buildings. 12/20 revisions to this publication include updates to Sections 6, 7 and 8, relative to active soil depressurization (ASD), where most provisions have been harmonized to read the same across ANSI/AARST SGM-SF, RMS-MF and RMS-LB. For compliance purposes, the effective date of this publication is 9/1/2021.
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