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Register for an Occupational Licensing Exam

How to apply for a license, pay an application fee, obtain a TCEQ approval, and register to take an exam.

Pre-Approval is Required Before Exam Registration

The TCEQ must pre-approve your license application before you can register for an exam. If approved, you will receive an approval letter (see sample approval letter) in the mail which you must bring with you to your exam. If you don't have a copy or lose your approval letter, you can print a copy of your application status showing "Approved" from searching your name or license number. Approval of an electronic application takes approximately 3-4 weeks if all supporting documentation is provided and there are no deficiencies.

Conditional Approval

A conditional approval is an option if you:

  • are only missing the required core training;
  • have no deficiencies; and
  • intend to take the exam immediately following the required training at a location where the TCEQ, or a TCEQ-designated agent, is proctoring the exams.

When you apply, you must indicate that you intend to apply for a conditional approval and provide proof of the last course registration confirmation and the location, city, and date of the exam you are approved to take.

Note that if you are conditionally approved, you may not register for a licensing exam at a TCEQ Regional Office until you have completed your core training and have contacted the Occupational Licensing Section to request a regular Approval. Once you have an Approved application, you can return to LEXR and register to take an exam in a TCEQ Regional Office.

Conditional Approvals are not accepted at CBT locations.

Scheduling to Take an Exam

Computer-Based Testing (CBT)

If you would like to schedule a computer-based test, please visit the Computer-Based Testing webpage. CBT exams at TCEQ approved test centers provide immediate exam scores, exam analysis feedback and immediate retesting. CBT is available state-wide.

Some Benefits of CBT are:

  • Convenience (offered statewide)!
  • Offered 5-7 days a week, depending on location!
  • Immediate exam score!
  • Immediate exam analysis feedback!
  • Faster receipt of licenses!
  • Immediate retesting available!

Available Exams at CBT locations

  • Backflow Prevention Assembly Tester (BPAT) - written portion
  • Customer Service Inspector (CSI)
  • Irrigation Inspector
  • Irrigation Technician (English only)
  • Leaking Petroleum Storage Tank (LPST)
  • Municipal Solid Waste (MSW) A&B
  • On-Site Sewage Systems (OSSFs) - Installer I & II
  • On-Site Sewage Systems (OSSFs) - Maintenance Provider
  • On-Site Sewage Systems (OSSFs) - Designated Representative
  • Underground Storage Tank (UST) On-Site Supervisor - A & B
  • Wastewater Operators B, C, and D
  • Wastewater Collection Operator I, II, & III
  • Water Operators A, B, C, and D
  • Water Treatment Specialist (WTS) - I, II & III

Paper-Based Testing in TCEQ Regional Offices

If you prefer a paper-based test, registration is required to sit for an exam -- Walk-ins are not allowed.

If you have an approved application, use the Licensing Exam Registration (LEXR-R) to register. A SUNSS LEXR instruction guide Adobe Acrobat PDF Document is available.

TCEQ Regional Offices

TCEQ Regional Offices offer paper exams in the following locations:

Regions 1-4 Regions 5-8 Regions 9-12 Regions 13-16

TCEQ Region 1 - Amarillo
3918 Canyon Drive (IH-27)
Amarillo, Texas 79109-4933

Main Phone Line: (806) 353 - 9251

TCEQ Region 5 - Tyler
2916 Teague Drive
Tyler, TX 75701

Main Phone Line: (903) 535-5100

TCEQ Region 9 - Waco
6801 Sanger Avenue, Suite 2500
Waco, TX 76710

Main Phone Line: (254) 751-0335

TCEQ Region 13 - San Antonio
14250 Judson Road
San Antonio, TX 78233-4480

Main Phone Line: (210) 490-3096

TCEQ Region 2 - Lubbock
5012 50th Street, Suite 100
Lubbock, TX 79414-3421

Main Phone Line: (806) 796-7092

TCEQ Region 6 - El Paso
401 East Franklin Avenue, Suite 560
El Paso, TX 79901-1206

Main Phone Line: (915) 834-4949

TCEQ Region 10 - Beaumont
3870 Eastex Freeway
Beaumont, Texas 77703

Main Phone Line: (409) 898-3838

TCEQ Region 14 - Corpus Christi
500 North Shoreline Blvd., Suite 500
Corpus Christi, TX 78401-0318

Main Phone Line: (361) 881-6900

TCEQ Region 3 - Abilene
1977 Industrial Boulevard
Abilene, TX 79602-7833

Main Phone Line: (325) 698-9674

TCEQ Region 7 - Midland
10 Desta Drive, Suite 350E
Midland, TX 79705

Main Phone Line: (432) 570-1359

TCEQ Region 11 - Austin
Building A, Room 173
12100 Park 35 Circle
Austin, TX 78753

Main Phone Line: (512) 239-6133

TCEQ Region 15 - Harlingen
1804 W. Jefferson Avenue
Harlingen, TX 78550-5247

Main Phone Line: (956) 425-6010

TCEQ Region 4 - Dallas/Fort Worth
2309 Gravel Drive
Fort Worth, TX 76118

Main Phone Line: (817) 588-5800

TCEQ Region 8 - San Angelo
622 South Oakes Street, Suite K
Ralph R. Chase State of Texas Services Center
San Angelo, TX 76903

Main Phone Line: (325) 655-9479

TCEQ Region 12 - Houston
5425 Polk Street, Suite H
Houston, TX 77023-1486

Main Phone Line: (713) 767-3500

TCEQ Region 16 - Laredo
707 E. Calton Road, Suite 304
Laredo, TX 78041-3887

Main Phone Line: (956) 791-6611

Regional Offices do not offer CBT exams.

Available Exams In TCEQ Regional Offices

  • Backflow Prevention Assembly Tester (BPAT) - written portion
  • Customer Service Inspector (CSI)
  • Irrigation Inspector
  • Irrigation Technician (English and Spanish)
  • Municipal Solid Waste (MSW)
  • On-Site Sewage Systems (OSSFs) - Maintenance Provider
  • Wastewater Operators (Spanish Version available for Wastewater Operator D)
  • Wastewater Collection Operator (Spanish Version available for Wastewater Collection I)
  • Water Operators (Spanish Version available for Water Operator D)
  • Water Treatment Specialist (WTS)

The Landscape Irrigator Exams and many of the On-Site Sewage Facility Exams are administered by the Texas A&M Engineering Extension Service (TEEX). Review the TEEXExit the TCEQ webpage for the availability and locations of these specific exams.

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Exam Day Policy

Arrive at least 30 minutes prior to your exam time (unless otherwise specified by the Region).

The Following items are NOT allowed in the exam room:

  • hats/jackets (if items such as coats are necessary due to weather, they must be placed with the proctor);
  • sunglasses;
  • electronic equipment (cell phones, smart watches, pagers, two-way radios, all devices with a camera, etc.);
  • food or drinks (except for 8-hour exams); and
  • study guides/notes (with the exception of MSW A & B).

The Following items ARE allowed in the exam room:

  • non-programmable calculators;
  • number 2 pencils;
  • government photo issued ID;
  • confirmation of exam registration
  • failure/approval letters/approved application printout; and
  • only for MSW A and MSW B - study guides/notes.

Applicants shall be turned away before the examination begins if:

  • they do not have a government issued photo ID;
  • they are not on the exam pre-registration list; or
  • they refuse to leave prohibited items in their vehicle.

With the exception of "A" exams, there are NO lunch or restroom breaks allowed.

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To cancel a scheduled exam, go to License Exam Registration (LEXR-C). You MUST have your confirmation number and customer number (CN) to cancel.

  1. Log on to LEXR-C and cancel your registration using your Customer Number (CN) and Registration Confirmation Number. You can find your CN and Registration Confirmation Number on the email confirmation sent to you when you registered for the exam.
  2. You can call the TCEQ Regional Office that you registered to take an exam and ask them to cancel your registration.

Not cancelling your exam registration or not showing up for a scheduled exam, may be counted as a failed exam attempt or suspend the ability to register for an exam for up to 4 months.

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Retaking an Exam

If an approved applicant fails the exam, they may retake the test a maximum of three times within one year of the application approval date. Retesting is possible as soon as an approved applicant receives a notice of failing the exam in the mail or by CBT, provided the testing center can accommodate the retest. After the fourth unsuccessful test in the one-year period, the applicant will need to submit a new application and fee.

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Special Accommodations for a Disability

If you have a disability and need special accommodations when you take a licensing exam, please fill out the special accommodations request form before you register for the exam. If preferred, you can email the form to us at the email below or mail it to the address on the form. Please include supporting documentation showing medical proof of the disability. Contact us in advance so we can make sure that we have the accommodations you need in place on the day of your exam. Contact TCEQ at 512-239-6133 or

Note: Do not register for your exam until you have been approved for your special accommodation request.

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