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Texas Landscape Irrigator (LI) Contractor License

The Landscape Irrigator (LI) Contractor License qualifies you to conduct the following work on irrigation systems:

  • Sale
  • Design
  • Consultation
  • installation
  • Maintenance
  • Alteration
  • Repair
  • Service
  • Connection to a private or public, raw or potable water supply or any water supply (including water wells in unincorporated areas of the state)

How to Get the Landscape Irrigator (LI) Contractor’s License in Texas?

  1. Complete the Basic Irrigator Training Course
  2. Submit the TCEQ online Application Form
  3. Present a Criminal History Attestation
  4. Pay the established fee
  5. Wait for the approval letter to be mailed to the address on your application
  6. Contact the Texas Engineering Extension Service (TEEX) at (800) 723-3811 for exam details
  7. Pass the applicable exam with a minimum score of 70 percent for each section. The Landscape Irrigator License exam will not be offered through CBT, but will continue to be administered by the TEEX
  8. Expect a response from the Commission after the validation of the registration
  9. If needed, contact the Texas Commission on Environmental Quality (TCEQ) at This email address is being protected from spambots. You need JavaScript enabled to view it. for more information on the process

Texas Landscape Irrigator (LI) Contractor License Exam

Below are the currently available details regarding the Landscape Irrigator (LI) exam. The test will now be offered for CBT starting on April 10, 2023; the last paper-based session, which will be run by the TEEX, will take place on May 11, 2023. Before candidates are allowed to take the computer-based test, they must first comply with the criteria to receive pre-approval from the Texas Commission on Environmental Quality. After receiving clearance, applicants can take four tests during a one-year approval period (the initial test plus up to three retests) at the Registered Test Center. If the candidate is ineligible to retake the examination, access to the licensing test will not be granted. Depending on the test site, applicants that fail to pass the initial test may retest it once right away, but must come back on a different day to attempt the remaining three out of their four chances.

Texas Landscape Irrigator (LI) Contractor Trade Exam

  • Testing Company: TCEQ
  • Time Allowed: 6 Hours
  • Subjects Involved:
    • Unincorporated areas' water wells
    • Backflow, cross-connections, public health, and environmental protection
    • Connection of irrigation systems to private/public, raw/portable, or any water supply
    • Irrigation system sales, designs, consultations, installations, upkeep, alterations, repairs, and services
Details