Determine the difference in scope between a Texas TCEQ OSSF Installer I and Installer II license before bidding a job
domain: tceq.texas.gov · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Review TCEQ's OSSF occupational licensing page to confirm current Installer I vs Installer II authorized activities
Complete a TCEQ-approved OSSF installer training course before applying
Submit the occupational license application through TCEQ's Occupational Licensing Electronic Application (OLEA) with the required fee
If upgrading from Installer I to Installer II, hold the Installer I license at least one year and document qualifying installation experience or sworn verification
Renew on TCEQ's schedule and complete required continuing education hours
Known gotchas
Installer I generally covers standard gravity/absorptive systems; aerobic or other proprietary treatment systems typically require Installer II or work under a Designated Representative - verify against the specific system type before installing
TCEQ had a staff-initiated rulemaking underway targeting 2026 to update OSSF rule clarity, so confirm current rule text rather than relying on older summaries
The state occupational license does not replace the local permit - installation still requires a permit from the authorized county agent
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