- Show that you own and can properly use a level or transit.
- Plan for a trade exam.
- Every three years.
Do you need a state license in Rhode Island?
Rhode Island licenses septic system work at the state level through the Rhode Island Department of Environmental Management, Office of Water Resources, OWTS Program. Below is what the board asks for, in the order you will run into it.
Rhode Island license types for septic system work
Rhode Island splits the work into 2 licenses. Pick the one that matches the jobs you take, since working outside its scope is the same as working without one.
| License | What it covers |
|---|---|
| Installer | Installing, building, altering and repairing septic systems |
| Class I Designer | Designing repairs. Requires a valid installer license to apply. |
Steps to get licensed in Rhode Island
- Apply through the OWR online portal for the installer exam.
- Show you can use a level or transit and pass the written exam.
- Renew every three years.
Experience and other requirements
Experience. Show that you own and can properly use a level or transit.
The license to apply for. OWTS Installer's License.
Rhode Island septic installer exams
Trade exam. A written exam.
Business and law exam. The official pages we read do not say. Check with the board (official site).
What it costs in Rhode Island
We could not confirm the current fee schedule on an official page. Check with the board before you budget: Rhode Island Department of Environmental Management, Office of Water Resources, OWTS Program.
Insurance and bond
Insurance. The official pages we read do not say. Check with the board (official site).
Bond. The official pages we read do not say. Check with the board (official site).
Renewal and licenses from other states
Renewal. Every three years.
Reciprocity. The official pages we read do not say. Check with the board (official site).
After you are licensed
The license lets you take the work. Getting the work is the next job.
- Register the business. If you work under a name other than your own, register it where your state asks (often the Secretary of State, sometimes the county), and keep the name the same on your license, your truck and your invoices.
- Claim your Google Business Profile. It is the listing people see when they search for septic installation near them. Fill in your service area, hours and real photos of your work.
- Put up a website that shows the license. Customers look for it before they call. Koira builds a contractor website for you and keeps it current.
- See where you stand. The free Koira report checks how your business shows up in search and on maps against shops near you.
Where this comes from
Every fact on this page comes from the Rhode Island Department of Environmental Management, Office of Water Resources, OWTS Program and the official pages below, checked October 9, 2026. Fees and rules change, so confirm with the board before you file.