Rainwater harvesting training, professional resources, and national standards expertise
ARCSA International offers training, national standards, and a global network of designers, installers, and equipment suppliers for rainwater catchment systems. Services include system design guidance, professional training, and evaluation support to ensure safe, compliant rainwater harvesting projects for commercial, industrial, and municipal applications.
Overview
ARCSA International, operating under The IAPMO Group, is a globally recognized authority on rainwater catchment systems. The organization offers professional training, national standards guidance, and access to a worldwide network of designers, installers, inspectors, and equipment suppliers. Its standards-based design process is proven to deliver clean and safe water for a wide range of uses and can be applied to virtually any structure or environment.
Technical specifications
- National standards expertise: ARCSA-developed standards (such as ARCSA/ASPE/ANSI Standard 63) establish uniform requirements for the design, installation, and maintenance of rainwater catchment systems, ensuring safety and performance.
- Full system chain guidance: Approved equipment and NSF roofing materials that meet US EPA drinking water standards can be specified for projects.
- Professional training programs: Structured curricula for designers, installers, inspectors, and system managers, all built around nationally adopted standards.
- Global resource network: Membership spans government professionals, academics, consultants, and manufacturers, enabling rapid identification of qualified local designers, installers, and suppliers for any project location.
- In-field certification program: Independent evaluation of installed systems against established standards to verify operational performance and regulatory compliance.
Technology readiness level
ARCSA's design and training methodology is fully developed and has been validated through installations at airports, hockey rinks, large municipal complexes, and other commercial and industrial sites. The organization has also conducted evaluations of government rainwater systems and understands the requirements for successful project execution. The framework is ready for immediate application to new projects, with ongoing support available for training, system evaluation, and long-term maintenance guidance.
About American Rainwater Catchment Systems Association
The American Rainwater Catchment Systems Association (ARCSA), now operating as ARCSA International under The IAPMO Group, is a professional organization dedicated to promoting sustainable rainwater harvesting and stormwater management practices. Founded in 1994, the association provides education, resources, and standardized professional training for the industry. A central component of its work involves the development of codes and national standards, such as the ARCSA/ASPE/ANSI Standard 63, which establishes uniform requirements for the design, installation, and maintenance of rainwater catchment systems to ensure safety and performance.
ARCSA International serves a diverse membership of government professionals, academics, consultants, and equipment manufacturers by fostering a forum for knowledge exchange and industry advancement. To address gaps in system-level verification, the organization launched an in-field certification program that evaluates installed systems against established standards. This initiative provides independent confirmation of operational performance, helping regulators, engineers, and facility owners ensure that rainwater systems are safe, reliable, and compliant, ultimately supporting broader adoption of alternative water solutions.
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