Texas On-Site Sewage Facility System (OSSF) Installer Class II License

The On-Site Sewage Facility System (OSSF) Installer Class II License provides official authorization to the licensee to work on:

• Installation of all types of OSSFs:
  • Septic tanks
  • Absorptive, Pumped Effluent (PEDs), Low-pressure dosed (LPDs) and Soil substitution Drainfields
  • Lined and Unlined Evapotranspiration (E-T)
  • Leaching Chambers
  • Gravel-less Pipe
  • Drip Irrigation
  • Surface application disposal
  • Mounds

How to Get the On-Site Sewage Facility System (OSSF) Installer Class II License in Texas?

• Schedule and complete a OSSF - Installer II Training Course with the TEEX
• Access the OLEA portal by creating an account on the TCEQ SUNSS platform and select the corresponding application form
• Pay for the corresponding fee through this platform as well
  • If the application is approved by the Commission, the candidate will receive an approval letter by mail in three to four weeks, alongside instructions on how to register for the exam
  • If a deficiency is found in the application packet, a deficiency letter will be sent out instead, and the candidate will have 120 days to clear the deficiency(s). If not cleared accordingly, the application will expire, and it will be required to submit an application and fee to reapply for the license. Application fees are not refundable
• Select and contact the Texas Commission on Environmental Quality Computer-Based Testing Location of their choice to schedule the corresponding exam once the application has been approved
• Expect a response from the Texas Commission on Environmental Quality (TCEQ) after the validation of the process

Texas On-Site Sewage Facility System (OSSF) Installer Class II License Exam

Below is the available information related to the On-Site Sewage Facility System (OSSF) Installer Class II CBT exam. All candidates for licensing must fulfill the pre-approval requirements of the Texas Commission on Environmental Quality, before they can register to present the computer-based test. Following authorization, applicants may take the initial test plus up to three retests over the course of one year at the corresponding Registered Test Center. Access to the license exam will not be granted if the candidate does not qualify to retake the test. Depending on the testing location, applicants who fail the initial test may retake it (once) immediately and on the same day, but they shall return on another date to attempt the other three of the four chances that are given.

On-Site Sewage Facility System (OSSF) Installer Class II Trade Exam

• Testing Company: TCEQ
• Testing Method: Computer-based testing; closed book
• Time Allowed: 3 Hours
• Subjects Involved:
  • Installation of all types of OSSF Systems:
    • Septic tanks
    • Proprietary treatment unit (aerobic treatment unit)
    • Standard intermittent sand filter
    • Activated sludge processes
    • Rotating biological contactors
    • Trickling type filters
    • Submerged rock biological filters
    • Recirculating sand filters
    • Absorptive drainfields
    • Unlined and Lined evapotranspiration (E-T) systems
    • Pumped effluent drainfields (PEDS)
    • Leaching chambers
    • Absorptive drainfield
    • Low-pressure dosed drainfields
    • Soil substitution drainfield
    • Gravel-less pipe
    • Drip irrigation
    • Low-pressure dosed drainfields (LPDS)
    • Surface application disposal
    • Mounds