- Installer II applicants must have held an Installer I license for at least one year.
Do you need a state license in Texas?
Texas licenses septic system work at the state level through the Texas Commission on Environmental Quality, Occupational Licensing. Below is what the board asks for, in the order you will run into it.
Texas license types for septic system work
Texas splits the work into 3 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 I | Standard systems: septic tanks, absorptive drainfields, unlined ET drainfields, leaching chambers, gravel-less pipe and pumped effluent drainfields |
| Installer II | All types of OSSF systems |
| Apprentice registration | Works under the direct supervision of a licensed installer |
Steps to get licensed in Texas
- Start as an Installer I, licensed for standard systems.
- After a year as Installer I, apply for Installer II to install all system types.
Experience and other requirements
Experience. Installer II applicants must have held an Installer I license for at least one year.
The license to apply for. OSSF Installer I or Installer II license.
Texas septic installer exams
Trade exam. The official pages we read do not say. Check with the board (official site).
Business and law exam. The official pages we read do not say. Check with the board (official site).
What it costs in Texas
We could not confirm the current fee schedule on an official page. Check with the board before you budget: Texas Commission on Environmental Quality, Occupational Licensing.
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. The official pages we read do not say. Check with the board (official site).
Reciprocity. The official pages we read do not say. Check with the board (official site).
Good to know in Texas
- An apprentice working without the installer on site needs the installer to visit the job at least once each workday.
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 Texas Commission on Environmental Quality, Occupational Licensing and the official pages below, checked October 9, 2026. Fees and rules change, so confirm with the board before you file.