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ANSI/AARST CCAH 2020 Rev.5-23

Reducing Radon in New Construction of One & Two Family Dwellings and Townhouses

This standard provides minimum requirements for the rough-In of radon control system components in new dwelling units under construction. CCAH also includes minimum requirements for verifying if radon concentrations are below the national action level and, if required, activation of radon control systems.

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American Association of Radon Scientists and Technologists [aarst]

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