Is Collecting Rainwater Legal in California?
Collecting Rainwater is legal in California as of 2026. California encourages rainwater harvesting and has no restrictions on residential rainwater collection under California Water Code § 10540-10546. The state promotes rainwater capture as a water conservation method.
Collecting Rainwater is LEGAL in California
Collecting Rainwater is currently legal in California with no major restrictions.
Collecting Rainwater Laws in California: Quick Facts
- 1 Legal Status: Collecting Rainwater is currently legal in California.
- 2 Possession: No restrictions on possession or use of rainwater collection systems.
- 3 Sale: No specific laws regulating sale or purchase of rainwater.
- 4 Age Restriction: None
- 5 Penalties: N/A
Detailed Legal Breakdown
| Possession | No restrictions on possession or use of rainwater collection systems. |
| Sale | No specific laws regulating sale or purchase of rainwater. |
| Age Restriction | None |
| Penalties | N/A |
| Pending Legislation | None known |
How Does California Compare?
Across all 50 states, Collecting Rainwater is fully legal in 36 states, legal with restrictions in 14 states, and illegal in 0 states. California is among the 36 states where it is legal.
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Editorial Standards
This page was researched and written by the editorial team at IsThisLegalInMyState.com. All legal information is sourced directly from official state statutes, regulatory agency publications, and legislative databases. Our team reviews each page for accuracy and updates it when laws change.
Source
Citation: California Department of Water Resources
https://water.ca.gov/Programs/Water-Use-And-Efficiency/Rainwater-Harvesting
Last verified: 2026-01-15
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