Texas OSSF Resources
Official septic and OSSF resources for Texas property owners
A practical reference page for OSSF permits, site evaluation, Registered Sanitarian credentials, and Houston-area local review.
Official references
Start with the agency links
OSSF planning depends on state rules, local review, and the conditions found on the property. These official resources help homeowners, installers, builders, and land developers understand what may be needed before installation.
Texas Septic Design uses site-specific information to prepare septic design and site evaluation work for Greater Houston projects.
Resource links
Texas OSSF and permitting references
TCEQ OSSF overview
State-level information about on-site sewage facilities, septic systems, OSSF rules, forms, and program resources.
TCEQ OSSF permit guidance
Guidance for OSSF permits, approved plans, local permitting authority, and general installation requirements.
TCEQ OSSF licensing
Licensing information for OSSF site evaluators, installers, maintenance providers, apprentices, and designated representatives.
TDLR Sanitarians program
Texas Department of Licensing and Regulation information for Registered Sanitarians.
Harris County permits
Harris County Engineering permit portal for local permit information and unincorporated Harris County review context.
Need a project package?
Use the resources, then match the plan to the site
The official resources explain rules and permitting context. The design still has to match the property: soil, slope, drainage, setbacks, water features, structures, planned use, and available area.
Planning a Greater Houston septic project?
Send the property address, survey or plat if available, planned use, and any county or installer notes already collected.
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