Texas Water Treatment Specialist Class III (WTS) Contractor License

The Water Treatment Specialist Class III (WTS) Contractor License allows its holder to do the following work:

Water treatment activities involving equipment and appliances (including reverse osmosis and deionization equipment), such as:
- Installation
- Exchanging
- Servicing
- Repairing

How to Get the Water Treatment Specialist Class III (WTS) Contractor’s License in Texas?

Read the different license exemptions:
- Licensed Plumbers (Texas Operations Code, Chapter 1301)
- Employees of industrial facilities where they install or service water treatment equipment
- Employees of public water systems who install water treatment equipment at their system who hold a Class C License or higher
- Employees of registered operations companies installing water treatment equipment at the facilities for which the operation company has a contract to operate and who hold a Class C License or higher
Meet the education and experience requirements:
- First choice
  - High School Diploma or GED
  - Three years installing or offering maintenance services for water treatment appliances
- Second choice
  - Two years of College (sixty-four semester hours)
  - Two years of experience maintaining or assembling water treatment equipment
- Third choice
  - College Degree
  - One year of work experience in installation or servicing water treatment appliances
Complete the Online Application for the Water Treatment License
Submit the corresponding fee to the TCEQ
Sign up for an exam at your Local TCEQ Regional Office or your Local Computer-Based Testing Center
Await for the Texas Commission on Environmental Quality requirements verification and license approval

Below is all the information related to the trade exam, including the official reference list.