OSSF – Designated Representative

WWW305 – 24.00 Hours


Details Buttons Dates Location Class Price Register Buttons
06/11/24 – 06/13/24 Mesquite, TX EU WWW305 146 $595.00 Register
07/17/24 – 07/19/24 San Antonio, TX EU WWW305 153 $595.00 Register
08/13/24 – 08/15/24 Live Online Instructor-Led Training EU WWW305 149 $595.00 Register

This schedule is subject to change without notice. If you have not received confirmation of the class prior to the class start, please contact the division at (800) 723-3811 or (800) SAFE-811 or [email protected] to get the latest schedule.

Course Description

**PLEASE NOTE** This course has been approved by the Texas Commission on Environmental Quality (TCEQ) to fulfill 24 credit hours in the following operator license area(s):

– Onsite Sewage Facility Operator License

class being conducted outsideThe OSSF – Designated Representative course not only prepares local government personnel to enforce TCEQ OSSF rules and regulations in coordination with the commission, participants also receive information specific to the proper design, construction, and operation of multiple on-site sewage disposal systems along with best practices linked to the proper response to complaint calls. Once students successfully complete the course, they may apply directly with TCEQ to take the licensing examination at either a TCEQ Regional Office or at an approved Computer Based Testing (CBT) Center.  

Special Note: Beginning September 1, 2020 TEEX will no longer administer the OSSF Designated Representative  paper-based exam.  After September 1, 2020 the Designated Representative exam will be available through CBT – see WWW901 for more details. 


There are no prerequisites for this course.

Course Completion Requirements

TCEQ Licensing Requirements

For any class after September 1, 2020 TEEX will no longer offer the paper-based exams in conjunction with the class. After participants successfully complete the training course, they will need to apply with TCEQ for an exam using the TCEQ eApplication.

Attendance Requirements

Class attendance is an essential part of the education process and participants in TEEX courses are expected to attend all class sessions and field exercises. This course requires participants to attend a minimum of 100% of the class hours as a component of successful course completion. During the course, your instructor will review any additional attendance requirements, for example a field exercise that cannot be missed.

Prior Training Courses or Knowledge

It is recommended, but not required, participants have previous on-the-job experience working with a Designated Representative in field conducting inspections and permitting paperwork.

Upon successful completion, you will be able to:

  • Discuss pertinent regulations governing on-site sewage facilities (OSSF).
  • Discuss concepts for OSSFs.
  • Describe the evaluation process for OSSF site selection.
  • Describe the functions of soil in an OSSF.
  • Estimate the load on an OSSF.
  • Discuss the inspection of different OSSFs.
  • Discuss the OSSF site inspection and technical review.
  • Discuss the administration of an OSSF program.

Suggested Audience

This course is designed for personnel involved in OSSF regulation. It is intended to prepare participants to sit for the state Designated Representative licensing exam, required for those regulating Texas OSSFs.

Continuing Education And Professional Credits

  • 24.00 hours – Texas Commission on Environmental Quality (TCEQ)

Contact Information

Infrastructure Training & Safety Institute
OSHA Training Institute Education Center
Phone: | Toll-Free: (800) 723-3811 or (800) SAFE-811
Email: [email protected]