Updated Rainwater Catchment Systems Design Standard Is Now Available   ASPE is pleased to announce that ARCSA/ASPE/ANSI 63-2020: Rainwater Catchment Systems has been designated as an American National Standard by the American National Standards Institute (ANSI) and is now available for purchase. Jointly developed by ASPE and the American Rainwater Catchment Systems Association (ARCSA), ARCSA/ASPE/ANSI 63-2020 is […]