Texas On-Site Sewage Facility System (OSSF) Maintenance Provider Contractor License

The On-Site Sewage Facility System (OSSF) Maintenance Provider Contractor License enables the licensee to:

  • Provide service or maintenance to on-site disposal systems using aerobic treatment

How to Get the On-Site Sewage Facility System (OSSF) Maintenance Provider Contractor’s License in Texas?

  1. Meet the age requirement, which is 18
  2. Comply with one of the following requisites:
  3. Schedule and complete a Basic Maintenance Provider Training Course with the TOWA
  4. Program and take a Advanced Aerobic Maintenance Provider Training Course with the TOWA
  5. Access the OLEA portal by creating an account on the TCEQ SUNSS platform and selecting the corresponding application form
  6. Pay for the corresponding fee through this platform as well
  7. Await for the informative letter and the instructions on how to register for the exam by mail If the application is approved by the Texas Commission on Environmental Quality

Texas On-Site Sewage Facility System (OSSF) Maintenance Provider Contractor License Exam

Below is the available information related to the On-Site Sewage Facility System (OSSF) Maintenance Provider 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) Maintenance Provider Contractor Trade Exam

  • Testing Company: TCEQ
  • Testing Method: Computer-based testing; closed book
  • Time Allowed: 3 Hours
  • Subjects Involved:
    • Maintenance of OSSF Disposal Systems
    • General Operation and Maintenance of Aerobic Treatment System
    • Basic Configuration of Secondary Treatment Plants
    • Function and Maintenance of Disinfection System Equipment
    • Routine Maintenance Visits
    • Troubleshooting Aerobic Treatment Plants
    • Public Relations and Proper Business Practices
    • Exposure to pathogens, possible safety hazards
    • Treatment Principles and Processes
    • Testing and Evaluation
    • Compliance Tests and Periodic Reports
    • Overview of Tools, Parts, and Supplies