Rainwater Harvesting Regulations Map - US Department of Energy
This map gives federal agencies key information on how rainwater is regulated across the U.S. to help them make strategic decisions on where to implement rainwater harvesting projects.
National Guidelines for Use of Rainwater Tanks - Australia
This guidance from the Environmental Health Standing Committee (enHealth) provides information on potential threats to water quality in rainwater tanks and how to avoid them.
NSF P151: CERTIFICATION
OF RAINWATER CATCHMENT
SYSTEM COMPONENTS
A protocol that confirms rainwater catchment products do not impart contaminants into the water at levels that exceed U.S. EPA drinking water regulations or advisories.