Installer II. Authorized to install all types of OSSF systems, including aerobic treatment units.
Maintenance Provider. Authorized to service and maintain on-site disposal systems that use aerobic treatment.
Site Evaluator. Authorized to perform preconstruction site evaluations — determining whether a site suits a particular OSSF system and identifying anything nearby that could be contaminated by it or interfere with it.
TCEQ occupational licences run three years. All OSSF licences except the Apprentice and Maintenance Technician registrations require 24 hours of continuing education to renew.
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