Administrative overview · FIPS 48275
Knox County permit authority
The first compliance decision is jurisdictional: identify the office with statutory authority over your parcel, then use its filing and inspection sequence to keep the project moving.
Jurisdictional status
State Fallback
This profile identifies a handoff outside the county’s ordinary structural permitting lane.
Required jurisdiction check
Confirm the controlling local or state authority before filing.
The record is marked State Fallback. That means the county profile should be treated as a routing brief: incorporated municipalities, a state building department, or a state fire marshal may control plan review, permits, and inspections. Contact the named agency below and verify the parcel’s jurisdiction before paying a fee or scheduling field work.
Responsible agency
Texas Commission on Environmental Quality Region 3 OSSF Program
For a project in or near Knox County, this office is the identified point of contact for permit intake, statutory code enforcement, plan review coordination, and inspection release conditions. Confirm the parcel’s boundary and project type before relying on the county lane.
Direct contact
TCEQ Region 3: 325-698-9674; Knox County Courthouse: 940-459-2191
Call before mobilizing if the project has a boundary, occupancy, fire, septic, or utility question.
Permit counter
TCEQ Region 3, 1977 Industrial Boulevard, Abilene, TX 79602-7833; Knox County Courthouse, 100 W. Cedar Street, Benjamin, TX 79505
Operating hours
Knox County Courthouse: Monday-Friday, 9:00 a.m.-5:00 p.m.; TCEQ Region 3 hours not published on the regional directory
Review expectation
TCEQ must approve or deny a complete OSSF permit application and planning materials within 30 days. No county building or floodplain review timeline is published.
Compliance workbench
Choose the next project decision.
Apply online
Open the verified digital gateway, application form, and review timeline.
Open guide →Fees & penalties
Understand fee schedules, enforcement exposure, and stop-work liabilities.
Open guide →Codes & exemptions
Read the code framework, minor-work exemptions, and inspection lane.
Open guide →Agency website
Visit the primary public source for current notices and contact changes.
Open guide →Source trail
Official sources for this profile
Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.
Project questions
Frequently asked questions for Knox County
Who handles permitting for this jurisdiction?
This record is marked State Fallback. Confirm whether a city, state agency, or other local authority controls the parcel before filing.
How should I begin an application?
No verified online portal was located in the reviewed public materials. Contact TCEQ Region 3: 325-698-9674; Knox County Courthouse: 940-459-2191 and request the current application route before preparing a final submittal.
How long might review take?
TCEQ must approve or deny a complete OSSF permit application and planning materials within 30 days. No county building or floodplain review timeline is published.
How are inspections scheduled?
For an OSSF in unincorporated Knox County, submit the state application, licensed site evaluation, system design, and other planning materials to TCEQ Region 3 at 1977 Industrial Boulevard, Abilene, TX 79602-7833, telephone 325-698-9674. Construction must await written authorization, and the installation must remain uncovered until TCEQ inspection and approval to operate. Contact the relevant city for building or floodplain inspections inside municipal jurisdiction. No public online scheduler was found.
Which codes and exemptions should I review?
Knox County does not appear as a local OSSF authorized agent in the latest TCEQ reporting data, so TCEQ Region 3 administers septic permits under Texas Health and Safety Code Chapter 366 and 30 TAC Chapter 285. The county's current official website publishes no general building-permit or inspection department, floodplain permit program, adopted ICC code edition, zoning ordinance, or certificate-of-occupancy process for unincorporated areas. The current Texas Floodplain Administrator directory lists Knox City but not Knox County, so incorporated municipalities should be contacted for their own building and floodplain requirements. No county cosmetic-work exemption list is published because no county structural building-permit program was found. Under state OSSF rules, a permit exception is limited to a system satisfying every condition of the 10-acre rule, a qualifying unaltered and non-failing grandfathered system, or defined emergency repairs reported in writing within 72 hours. Obtain TCEQ Region 3 confirmation before relying on an exception; municipal rules may be more stringent inside incorporated jurisdictions.