Texas Commission on Environmental Quality - TCEQ

The Texas Commission on Environmental Quality (TCEQ) strives to protect our state's human and natural resources consistent with sustainable economic development. TCEQ’s goal is clean air, clean water, and the safe management of waste. 

TCEQ offers Occupational Licensing examinations through computer-based testing. Please visit the TCEQ website for information regarding preparation, requirements, and necessary approvals to take an occupational licensing exam.

How to Take the TCEQ

Test Center Locations

Contact the testing center where you plan to test. 
HCC Central
1300 Holman, WW Harmon Bldg. Suite 211
Houston, TX 77004
Email: central.testing@hccs.edu
Ph: 713-718-6011
Central Testing Center Parking Information
Click the link below.
Google Maps Directions
Map of the Campus, we recommend parking in either #9, #10, or Parking Garage levels 2-5:

HCC NE Northline
8001 Fulton, Room 121
Houston, TX 77022
Email: northline.testing@hccs.edu
Ph: 713-718-8073
Northline Testing Center Parking Information
Click the link below.  
Parking available in the Northline Parking Garage.

HCC SW Stafford
10041 Cash Road, Learning Hub, Room 205
Stafford, TX 77477
Email: stafford.testing@hccs.edu
Ph: 718-718-6735
Stafford Testing Center Parking Information
Click the link below.  
Parking available in Lot 3. (Behind Learning Hub Building) 
Additional Parking: Lots 1 and 2. 



Approval by TCEQ is required before registering for this exam. Contact TCEQ for approval inquiries: 512-239-1000


TCEQ ID requirements:

  • Valid government-issued identification with photo and signature (i.e., driver’s license, passport, state-issued ID, military ID, etc.)  MUST BE a current recognizable photo ID.
  • Second form of ID (i.e., any of the previously listed photo IDs, social security card, birth certificate, credit or debit card, student ID, library card, etc.)
  • Social Security number, required to login to TCEQ exam.


NOTE: All forms of ID MUST be an original document; photocopied documents are not acceptable and documents cannot be presented on a cell phone or any electronic device.


For additional inforamtion on the TCEQ please visit the TCEQ website. https://www.tceq.texas.gov/licensing/licensing/exams/registration


TCEQ Exams Offered

Exams availble for computer-based test (CBT)


Backflow Prevention Assembly Tester (BPAT) - written portion

Customer Service Inspectors

Landscape Irrigation

  • Landscape Irrigator (6 hour time limit)
  • Landscape Irrigation Inspector
  • Landscape Irrigation Technician 

Leaking Petroleum Storage Tank (LPST)

Municipal Solid Waste Facility Supervisors

  • Class A (4 hour time limit)
  • Class B (2 hour time limit)

On-site Sewage Facility (OSSF)

  • OSSF Maintenance Provider
  • OSSF Designated Representative
  • OSSF Installer I
  • OSSF Installer II

Underground Storage Tank (UST) On-Site Supervisor

  • UST A
  • UST B

Wastewater Treatment and Collection System Operators

  • Class I Wastewater Collection System Operator 
  • Class II Wastewater Collection System Operator 
  • Class III Wastewater Collection System Operator
  • Class A Wastewater Treatment Facility Operator (6 hour time limit) 
  • Class B Wastewater Treatment Facility Operator
  • Class C Wastewater Treatment Facility Operator 
  • Class D Wastewater Treatment Facility Operator 

Water Treatment and Distribution System Operators

  • Class A Water Operator (6 hour time limit) Immediate retest not available for this exam.
  • Class B Groundwater Operator
  • Class B Surface Water Operator
  • Class B Water Distribution
  • Class C Groundwater Operator 
  • Class C Surface Water Operator 
  • Class C Water Distribution 
  • Class D Water

Water Treatment Specialists

  • Class III
  • Class II
  • Class I

Spanish exams now available by computer-based test (CBT)

  • Class D Water System Operator
  • Class C Groundwater Operator
  • Class C Water Distribution
  • Class C Surface Water Operator
  • Class D Wastewater Treatment Facility Operator
  • Class C Wastewater Treatment Facility Operator
  • Class I Wastewater Collection System Operator
  • Class II Wastewater Collection System Operator
  • Backflow Prevention Assembly Tester
  • Customer Service Inspector
  • Landscape Irrigation Technician
  • On-Site Sewage Facilities Installer I
  • On-Site Sewage Facilities Maintenace Provider


Testing Fee

  • $35 per exam attempt
  • Test fees are NON-REFUNDABLE
  • Please confirm exam before scheduling