ICC-SRCC maintains the following ANSI-approved consensus standards, which form the basis of the OG-100, OG-300 and OG-400 certification programs. Online versions of the standards are available for viewing or purchasing:

ICC 901/ICC-SRCC 100 Solar Thermal Collector Standard
ICC 900/ICC-SRCC 300 Solar Thermal System Standard
ICC 902/APSP 902/ICC-SRCC 400 Solar Pool and Spa Heating System Standard

ANNOUNCEMENT: The ICC 901/SRCC 100, ICC 900/SRCC 300, and ICC 902/APSP 902/SRCC 400 standards are currently undergoing revision. For additional information on the update process and to sign up for updates, please visit the IS-STSC Technical Committee webpage.