ANSI/AARST CCAH-2020 (PDF)

Description

ANSI/AARST CCAH-2020 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. This standard is harmonized to compliment the standard designated as ANSI/AARST RRNC, which replicates construction activities for rough-In components only