between countries, states, provinces, counties, and municipalities. Some locations have specific rules governing storage capacity, plumbing connections, drainage, or the use of collected water indoors.
The distinction matters because a simple barrel used to collect roof runoff may be treated differently from a large system designed to capture substantial amounts of water.
In other words, the fact that a particular collection method is legal in one location doesn’t automatically mean it’s permitted everywhere.
In the United States, rainwater harvesting is generally regulated at the state and local levels rather than
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