Before you install solar, collect rainwater, or disconnect from utilities, know what’s legal in your state. This guide summarizes the key off-grid laws across all 50 US states.
Rainwater Collection Laws by State
States Where Rainwater Collection Is Fully Legal (No Restrictions)
Alabama, Alaska, Arkansas, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, Nevada (limited), New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, South Dakota, Tennessee, Texas (encouraged by law), Vermont, Virginia, West Virginia, Wisconsin, Wyoming
States With Restrictions or Requirements
| State | Rule | Max Storage |
|---|---|---|
| Arizona | Legal; first 2,500 gallons exempt from permit | Unlimited with permit |
| California | Legal since 2012; registration required for large systems | Unlimited (residential) |
| Colorado | Legal since 2016; residential only, limited capacity | 2 x 110-gallon barrels |
| Oregon | Legal; must use for outdoor irrigation only unless permitted | No permit under 5,000 gal |
| Utah | Legal since 2010; registration required over threshold | 2,500 gallons unregistered |
| Washington | Legal; permit required for potable use systems | No size limit |
Solar Panel Rights by State
Solar Access Laws (Protecting Your Right to Install Solar)
Most states have enacted solar access laws that protect homeowners’ rights to install solar panels. Key provisions typically include:
- HOAs cannot prohibit solar panel installation (though they may regulate placement)
- Neighbors cannot block your solar access by planting trees
- Solar easements can be recorded to protect sun access permanently
States With the Strongest Solar Protections
- California — Solar Shade Control Act, strong HOA restrictions, net metering
- Florida — Constitutional right to solar energy; HOAs cannot prohibit panels
- Texas — HOAs severely limited in solar restrictions; strong net metering
- New Mexico — Solar Rights Act; mandatory solar easements available
- Massachusetts — SMART program; strong net metering; HOA restrictions
Net Metering Status by Region
| State | Net Metering Status | Notes |
|---|---|---|
| California | NEM 3.0 (2023) | Reduced export rates; storage encouraged |
| Texas | Varies by utility | ERCOT grid; check your utility |
| Florida | Full retail net metering | HB 741 extended through 2029 |
| New York | VDER (Value of Distributed Energy Resources) | Complex but favorable |
| Arizona | Avoided cost rate | Reduced since 2017 |
| Nevada | Full retail (restored 2017) | Was eliminated, then restored |
Composting Toilet Legality
Composting toilet regulations are primarily set at the state level but implemented by county health departments. General status:
| Status | States |
|---|---|
| Generally Legal (may require permit) | Vermont, New Hampshire, Maine, Oregon, Washington, Montana, Idaho, New Mexico, Colorado, Arizona, Minnesota, Wisconsin, Michigan, North Carolina, Georgia, Florida |
| Legal with NSF-certified units only | California, Massachusetts, Connecticut, New York |
| Highly restricted or requires variance | Illinois, Indiana, Ohio, Pennsylvania (varies by county) |
| Check local codes carefully | All remaining states — rules vary widely by county |
Disconnecting From Utilities
In most US states, you are not required to be connected to the electric grid if your property has an alternative power source that meets code. However:
- Water: Many jurisdictions require connection to municipal water or an approved well. You generally cannot simply « opt out » of water service.
- Sewer: Most municipalities require connection to sewer or an approved septic system. Composting toilets may be accepted as alternatives in some areas.
- Building codes: Any new construction or major renovation must comply with local building codes, which often specify minimum utility requirements.
Find Your State’s Specific Rules
- DSIRE Database — Solar incentives and net metering by state
- NCSL: Rainwater Harvesting State Laws — National Conference of State Legislatures
- Your county’s building and health department websites
- Your state’s Department of Environmental Quality or equivalent
Have a question about your specific state? Ask us — Marcus has researched off-grid regulations in over 30 states.