Florida's Two-Layer System: State Licensing + County Permits
Florida residential irrigation is regulated at two levels. First, the Florida Department of Agriculture and Consumer Services (FDACS) licenses irrigation contractors statewide under the Irrigation Specialty License. Second, individual counties issue building permits and set local inspection requirements. These two systems operate independently — a licensed contractor still needs a local permit, and permit requirements vary significantly from Escambia County in the Panhandle to Miami-Dade in South Florida.
Florida also has a third layer: Water Management Districts. Florida's five water management districts (SFWMD, SWFWMD, SJRWMD, SRWMD, and NWFWMD) each set irrigation water use rules — including day-of-week irrigation schedules — that apply on top of county permit requirements. Your system must comply with both your county permit and your district's water use rules.
Florida Statute 373.62 requires a rain sensor device or switch on all new automatic irrigation systems. Replacement of an irrigation controller also requires a rain sensor to be added at that time. This is a statewide requirement — not optional — and is inspected at permit close.
County-by-County Irrigation Permit Rules in Florida
The table below covers Florida's most populated counties. Always confirm with your county building department before starting work — rules change and some municipalities within counties have stricter requirements than the county baseline.
| County | Permit Required | Owner-Builder? | Backflow Type | Notes |
|---|---|---|---|---|
| Miami-Dade | Yes | Yes, with affidavit | RPZ required | Miami-Dade requires RPZ for all irrigation — not just chemical injection. Owner-builder affidavit required; permit pulled online at MDCpermits.com. |
| Broward | Yes | Yes | PVB or RPZ | Permit required for new systems and zone additions over 50% of existing system. Owner-builder allowed with notarized affidavit. |
| Palm Beach | Yes | Yes | PVB minimum | Separate permit required for reclaimed water connections. South Florida Water Management District irrigation schedules apply. |
| Hillsborough | Yes | Yes | PVB or RPZ | TECO/SWFWMD irrigation schedules apply. Year-round 2-day-per-week limits. Owner-builder application at hcflgov.net/permits. |
| Orange | Yes | Yes, limited | PVB minimum | Owner-builder allowed but applicant must certify they will not sell property within one year of completion. Orlando city limits have additional rules. |
| Pinellas | Yes | Yes | RPZ required | Pinellas County and most municipalities require RPZ as baseline — even without chemical injection. Annual backflow test required by most utilities. |
| Duval (Jacksonville) | Yes | Yes | PVB minimum | Jacksonville operates as a consolidated city-county. Permits through duvalcounty.net. St. Johns River WMD irrigation rules apply. |
| Lee | Yes | Yes | PVB or RPZ | SFWMD year-round twice-weekly rules apply. Cape Coral has its own dual-water system (potable and reclaimed) with separate permit tracks. |
| Polk | Yes | Yes | PVB minimum | SWFWMD schedules apply. Lakeland has city permit requirements in addition to county. Backflow test every 2 years required. |
| Volusia | Yes | Yes | PVB or RPZ | Florida DOH cross-connection control program applies. Backflow device must be registered with the utility. St. Johns River WMD rules apply. |
| Sarasota | Yes | Yes | RPZ preferred | City of Sarasota requires RPZ. County baseline is PVB. Owner-builder allowed with affidavit. Reclaimed water system — separate permit required. |
| Collier | Yes | Yes | PVB minimum | Golden Gate and Immokalee have separate requirements. SFWMD rules apply. Annual backflow test required by Collier County Water-Sewer District. |
Florida Owner-Builder Exemption: How It Works
Florida's owner-builder exemption allows a homeowner to pull their own building permit and perform construction work on their own residence. Under Florida Statute 489.103(7), you may act as your own contractor for irrigation work if:
- You own the property and it is your primary or secondary residence
- You personally perform all the work (or use your own employees — not subcontractors)
- You have not sold or offered to sell a similar owner-builder project in the previous 12 months
- You complete a disclosure/affidavit form, which is available at your county building department
The affidavit typically requires you to acknowledge that you are acting as your own contractor, that you understand the risks, and in many counties, that you won't sell the property within one year of project completion. If you sell within that window, the buyer is protected by Florida's implied warranty — you may still be liable for defects even without a licensed contractor.
Florida's owner-builder exemption only affects who performs the work. A permit is still required in every Florida county for new irrigation systems. You still need inspections, and backflow devices still must meet county standards.
Florida Backflow Prevention: Every 2 Years
Florida requires annual or biennial backflow preventer testing at most utilities. The Florida Department of Environmental Protection (FDEP) oversees cross-connection control, and most water utilities in Florida have active programs requiring:
- Initial testing upon permit close and system activation
- Recurring testing every 1–2 years depending on the utility (most require every 2 years for residential PVBs; annual for RPZs in commercial settings)
- Testing must be performed by a certified backflow assembly tester — not just any plumber
- Test reports must be submitted to your water utility within 30 days of testing
JEA (Jacksonville), Tampa Bay Water, and SFWMD member utilities all have active cross-connection programs. Failure to test and submit results can result in water service termination in some jurisdictions.
Florida Water Management District Irrigation Schedules
Installing your system is only half the picture — you must also comply with your water management district's irrigation schedule. Even if your system is fully permitted, irrigating outside these windows is a violation that can result in fines:
- SFWMD (South Florida): Year-round twice-weekly restrictions. Addresses ending in 0–4: Thursday/Sunday. Addresses ending in 5–9: Wednesday/Saturday. No irrigation between 10 AM–4 PM.
- SWFWMD (Southwest Florida): Year-round twice-weekly for most of the district. Once-weekly during certain drought conditions. Check swfwmd.state.fl.us for current restrictions.
- SJRWMD (St. Johns River): Twice-weekly year-round for most of the district. Same even/odd address schedule structure.
- NWFWMD (Northwest Florida): No year-round restrictions in most areas — but seasonal restrictions can be imposed during drought. Check nwfwmd.state.fl.us.
Frequently Asked Questions — Florida Irrigation Permits
In most Florida counties, yes. Adding a zone means new trenching, new connections, and potentially changes to the backflow assembly — all of which trigger permit requirements in most Florida building departments. The exception would be simple repairs to existing zones (replacing heads, fixing a broken pipe in an existing zone) which generally don't require a permit. When in doubt, call your county building department — a 5-minute call can save you from a stop-work order.
Licensed irrigation contractors (holding an FDACS Irrigation Specialty license), licensed plumbing contractors, or a homeowner pulling an owner-builder permit for their own residence. The FDACS maintains a license lookup at fdacs.gov/Business-Services/Irrigation-Specialty. Always verify a contractor's license before signing a contract — unlicensed irrigation work is a first-degree misdemeanor in Florida.
Most Florida utilities require backflow preventer testing every 1–2 years. The specific interval depends on your water utility. Residential PVBs are commonly tested every 2 years; RPZs in commercial or high-hazard settings are typically tested annually. Your utility will send a compliance notice when testing is due. Testing must be performed by a certified backflow assembly tester and results submitted to the utility within 30 days.
Yes — and many Florida utilities encourage it. However, reclaimed water connections require a separate permit from your utility and often from the county building department as well. Reclaimed water systems have strict rules: no cross-connections with potable water, purple-coded piping is required, and signage must be posted. The permit and inspection process for reclaimed systems is separate from — and in addition to — the standard irrigation permit.
Related: Homeowner Exemptions · Annual Backflow Testing · Rain Sensor Laws · Permit Checker Tool