The machine in your yard is much the same in every state. The legal structure around it is not, and the differences are the kind that cost money: a permit some owners renew and others never see, two years of service that are already paid for in some states and billed in others, and a filing step that in one state carries a daily fine.
This page is the map. Each state guide below is written from that state’s own rules and statutes, cited by number, so you can check us.
The four states, side by side
| Texas | Florida | Oklahoma | Louisiana | |
| Ongoing operating permit | No | Yes, every two years | No | No |
| First two years | Contract required on new systems | First contract runs two years | Installer maintains, no extra cost | Included in the plant’s price |
| After that | Licensed provider, local rules apply | Contract for the life of the system | Owner maintains or hires | Perpetual, by extended contract |
| Does the state get a copy? | Provider reports to the authority | Yes | Not an ongoing owner duty | Yes, and the owner files it |
| Owner may maintain own system | Certain types, local rules | Yes, with manufacturer training | Yes, no certification specified | Yes, maintenance certification and licensing; confirm fees with LDH |
| Service or reporting cadence | Reporting at least every 4 months | At least 2 services a year | 6-monthly during installer’s 2 years | 6-month intervals in the first 2 years |
| Regulator | TCEQ, local authorised agents | DEP, county health departments | DEQ, ECLS division | LDH, Bureau of Sanitarian Services |
The quickest way to read that table is by asking where each state puts the pressure. Florida puts it on the permit. Texas puts it on the reporting. Oklahoma puts it on the first two years, and then on you. Louisiana puts it on the filing, and prices the failure.
The state guides
Texas
Texas builds its regime around a licensed maintenance provider and a reporting cadence to the permitting authority, under 30 TAC §285.90. Two guides, because Texas owners arrive with two different problems:
- Texas maintenance contracts: what to check before signing — the terms, what is excluded, and the reporting obligation that sits behind the contract.
- How to verify a provider’s licence — checking a TCEQ-licensed Maintenance Provider in about two minutes, before you hand over money.
Florida
The strictest of the four on paperwork, and the only one with a permit you keep renewing. The operating permit must be valid for the life of the system and will not be issued without a current maintenance agreement, which locks the two together. Florida also moved its onsite programme between agencies, and DEP directly handles the 16 Panhandle counties and Marion County.
- Aerobic septic systems in Florida: permits, maintenance entities and who regulates you — including the current county list and the owner-operator route.
Oklahoma
The state where owners most often pay for something they are already owed. Under OAC 252:641-10-3 the installer must maintain the system for two years at no additional cost to the owner, with specified measurements every six months. Oklahoma also changed who may legally install a system, effective November 2025.
- Aerobic septic systems in Oklahoma: permits and maintenance — the two-year obligation, the measurements to ask for, and the certification question to ask before you hire.
Louisiana
The only one of the four with a published daily penalty figure, and a state with a homeowner maintenance certification route and a separate installation-certification fee waiver. The step owners miss is not having a contract; it is sending the health unit a copy of it.
- Aerobic septic systems in Louisiana: contracts, filing and fines — the perpetual maintenance requirement, the filing duty, and RS 40:1281.25.
If your state is not here yet
We would rather cover four states properly than fifty badly, so the honest answer is that most states are not on this page yet. If yours is one of them, the method transfers even when the detail does not. Four questions get you most of the way:
- Who regulates onsite wastewater here — a state environmental agency, a state health department, or a county acting for one of them?
- Is there an ongoing operating permit, or was the permit a one-off tied to construction?
- Is a maintenance contract required, for how long, and does anyone other than you need a copy?
- What may an owner legally do on their own system, and what is reserved to a licensed or certified person?
Your permitting authority answers all four in one phone call, and the answer is binding in a way that nothing on a website is. If you get those answers and they would help other owners in your state, tell us through our contact page and we will look at covering it.
The guides that apply wherever you are
Most of what goes wrong with an aerobic system is not state-specific. The aerator fails the same way in every state:
- The alarm is going off: what to check first
- The air pump has stopped: signs and next steps
- What maintenance costs over a year
- What a system costs to install
- What each component does
- Printable maintenance records
About this page
Educational information only, and not a legal opinion or a diagnosis of your system. The comparison above is a summary, and a summary of four regulatory regimes cannot carry the exceptions, the local variations or the changes that happen after we publish. Several of these states have changed their rules within the last two years. Each state guide carries its own sources and its own limits; read those before acting, and confirm anything that matters with your own permitting authority. Your permit, your approved design and your regulator determine what is required on your property. This site does not encourage tank entry, electrical work, contact with untreated wastewater, chemical handling outside label instructions, or unqualified repairs.
Last reviewed: October 8, 2026.