SepticRoster
Tool · Permits & inspections

Do you need a septic permit?

It depends on your state and on the work you're having done. Choose both below, or scroll down to read every answer.

What this tool does and doesn’t know

Your state writes the septic rules, but the permit itself is issued locally, usually by your county health department. So we can tell you what your state requires and who to call. We can’t tell you what your county charges, how long it takes, or whether your county has added rules of its own. State law is the minimum and a county can ask for more. Every answer below ends with what to check locally.

Aerobic / nitrogen-reducing (ATU, ENR, performance-based)

These systems come with a duty a plain tank does not. You have to keep a service contract with an approved company, and the system has to be inspected and reported on for as long as it is in use. That does not stop once it is installed, and it passes to whoever owns the house next. It is the requirement homeowners miss most often after buying a place that already had an aerobic unit in the ground.

Florida

Florida Department of Environmental Protection (FDEP); Florida Department of Health (DOH) during the ongoing transition · Onsite Sewage Program / Onsite Sewage Treatment and Disposal Systems (OSTDS)

Installing a new system in Florida

Permit required

Yes. Florida requires a permit before a new septic system goes in. If you start without one, you can be made to dig it back up.

The order is the same in all five states we cover. Someone tests your soil, a system is designed to suit that soil and the size of your house, the permit is issued, a licensed contractor installs it, and an inspector signs it off before it can be buried and used. The soil test comes first because it decides what system you are allowed to put in, so book that before you order anything.

Confirm locally
  • What the permit costs and how long it takes, both of which your county sets
  • Whether the health department tests your soil, or you hire an approved private evaluator
  • How far the system has to sit from your well, your property line, and any lake, creek or pond

Your permit is issued locally, not by Florida Department of Environmental Protection directly. Find your county’s office · Florida septic rules in plain English

Replacing a whole system in Florida

Permit required

Yes. Florida treats a full replacement the same as a brand-new system, so you need a permit before work starts.

Expect the new system to differ from the old one. A system approved thirty years ago often would not be approved today, and the replacement has to meet current rules rather than match what was there. If your property sits in an area the state protects for its water quality, this is usually the point where you are required to upgrade to a system that removes more nitrogen.

Confirm locally
  • Whether your property sits in a protected water area, which can change the type of system you are allowed
  • Whether your county runs a grant or cost-sharing program that would help pay for it
  • Whether the old tank can be reused, or has to be emptied and permanently sealed

Your permit is issued locally, not by Florida Department of Environmental Protection directly. Find your county’s office · Florida septic rules in plain English

Repairing or replacing a drainfield in Florida

Permit almost always required

Almost always. Florida regulates drainfield work, and you normally need a permit before it starts.

Counties decide what counts as a small repair versus a change that needs a permit, and most draw that line strictly. Fixing a drainfield usually means putting pipe into ground that was not used before, which is the part the permit exists to control. Assume you need one, and check before you book the work rather than after.

Confirm locally
  • Where your county draws the line between a small repair and work that needs a permit
  • Whether the new area has to have its soil tested first

Your permit is issued locally, not by Florida Department of Environmental Protection directly. Find your county’s office · Florida septic rules in plain English

Replacing the tank in Florida

Permit almost always required

Almost always. In Florida, swapping out a septic tank normally needs a permit.

The new tank has to meet today's rules for a house your size, which often means a bigger tank than the one you are taking out. The old tank has to be pumped out and permanently sealed or removed. Leaving it buried and full is not allowed, and it is a collapse risk.

Confirm locally
  • The smallest tank your county allows for a house with your number of bedrooms
  • What your county requires you to do with the old tank

Your permit is issued locally, not by Florida Department of Environmental Protection directly. Find your county’s office · Florida septic rules in plain English

Routine pumping in Florida

No permit needed

No. You do not need a permit to have your tank pumped in Florida.

The rules apply to the company, not to you. Whoever pumps your tank has to be licensed, and has to take the waste to an approved disposal site. That license is the thing to check. It is the difference between your waste reaching a treatment plant and being dumped somewhere it should not be.

Florida pumping rule: None statewide. Florida sets no fixed pump-out interval for conventional septic tanks. A statewide 5-year pump-and-inspect mandate passed in 2010 was repealed in 2012 before taking effect. Maintenance is mandated only for aerobic treatment units (service agreement + twice-yearly inspection) and performance-based systems (biennial operating permit).

Confirm locally
  • That the company you call still holds a current license. This site is built to make that easy to check

Your permit is issued locally, not by Florida Department of Environmental Protection directly. Find your county’s office · Florida septic rules in plain English

Selling or buying the home in Florida

No statewide requirement

Florida does not require a septic inspection when a house changes hands. If one happens, it is usually because the lender, the buyer, or the contract asks for it.

Not required is not the same as not worth doing. Once the sale closes, a broken system is the buyer's problem to pay for, and replacing one is among the most expensive things that can go wrong with a septic property. Most buyers should get it inspected anyway.

Florida specifics: state law does not mandate a point-of-sale inspection.

Confirm locally
  • Whether your county or town has its own rule about inspections at sale. A few do, and they can ask for more than the state does
  • What your lender wants, which is often stricter than either

Your permit is issued locally, not by Florida Department of Environmental Protection directly. Find your county’s office · Florida septic rules in plain English

The Florida statutes behind these answers
  • Fla. Stat. 381.0065 — Onsite Sewage Treatment and Disposal Systems; Regulation
    Core OSTDS statute governing construction, installation, repair, abandonment, and maintenance of septic systems. Explicitly bars any governmental point-of-sale inspection mandate ('An inspection of a system may not be mandated by a governmental entity at the point of sale in a real estate transaction'). Requires maintenance service agreements and twice-yearly inspections for aerobic treatment units, and biennial operating permits for performance-based systems. Does not impose a routine pumping interval on conventional septic tanks.
    Read the statute ↗
  • Clean Waterways Act of 2020 (SB 712 / Chapter 2020-150)
    Signed June 30, 2020; transferred the OSTDS regulatory program from the Department of Health to FDEP as a Type Two transfer under s. 20.06(2). Transfer effective July 1, 2021, phasing in county by county (Panhandle and Marion first); county health department staff continue permitting/inspection under FDEP direction during the multi-year transition.
    Read the statute ↗
  • HB 1379 (2023) — Enhanced Nutrient-Reducing OSTDS near impaired waters/springs
    Effective July 1, 2023, new septic systems on lots of one acre or less within designated impacted/Basin Management Action Plan areas must be enhanced nitrogen-reducing systems (ENR-OSTDS) rather than conventional septic. Effective Jan 1, 2024, within the Indian River Lagoon Protection Program area, new systems of ALL lot sizes must be ENR-OSTDS. Aimed at curbing nutrient loading to springs and impaired waterbodies.
    Read the statute ↗

Texas

Texas Commission on Environmental Quality (TCEQ) · On-Site Sewage Facility (OSSF) Program

Installing a new system in Texas

Permit required

Yes. Texas requires a permit before a new septic system goes in. If you start without one, you can be made to dig it back up.

The order is the same in all five states we cover. Someone tests your soil, a system is designed to suit that soil and the size of your house, the permit is issued, a licensed contractor installs it, and an inspector signs it off before it can be buried and used. The soil test comes first because it decides what system you are allowed to put in, so book that before you order anything.

Confirm locally
  • What the permit costs and how long it takes, both of which your county sets
  • Whether the health department tests your soil, or you hire an approved private evaluator
  • How far the system has to sit from your well, your property line, and any lake, creek or pond

Your permit is issued locally, not by Texas Commission on Environmental Quality directly. Find your county’s office · Texas septic rules in plain English

Replacing a whole system in Texas

Permit required

Yes. Texas treats a full replacement the same as a brand-new system, so you need a permit before work starts.

Expect the new system to differ from the old one. A system approved thirty years ago often would not be approved today, and the replacement has to meet current rules rather than match what was there. If your property sits in an area the state protects for its water quality, this is usually the point where you are required to upgrade to a system that removes more nitrogen.

Confirm locally
  • Whether your property sits in a protected water area, which can change the type of system you are allowed
  • Whether your county runs a grant or cost-sharing program that would help pay for it
  • Whether the old tank can be reused, or has to be emptied and permanently sealed

Your permit is issued locally, not by Texas Commission on Environmental Quality directly. Find your county’s office · Texas septic rules in plain English

Repairing or replacing a drainfield in Texas

Permit almost always required

Almost always. Texas regulates drainfield work, and you normally need a permit before it starts.

Counties decide what counts as a small repair versus a change that needs a permit, and most draw that line strictly. Fixing a drainfield usually means putting pipe into ground that was not used before, which is the part the permit exists to control. Assume you need one, and check before you book the work rather than after.

Confirm locally
  • Where your county draws the line between a small repair and work that needs a permit
  • Whether the new area has to have its soil tested first

Your permit is issued locally, not by Texas Commission on Environmental Quality directly. Find your county’s office · Texas septic rules in plain English

Replacing the tank in Texas

Permit almost always required

Almost always. In Texas, swapping out a septic tank normally needs a permit.

The new tank has to meet today's rules for a house your size, which often means a bigger tank than the one you are taking out. The old tank has to be pumped out and permanently sealed or removed. Leaving it buried and full is not allowed, and it is a collapse risk.

Confirm locally
  • The smallest tank your county allows for a house with your number of bedrooms
  • What your county requires you to do with the old tank

Your permit is issued locally, not by Texas Commission on Environmental Quality directly. Find your county’s office · Texas septic rules in plain English

Routine pumping in Texas

No permit needed

No. You do not need a permit to have your tank pumped in Texas.

The rules apply to the company, not to you. Whoever pumps your tank has to be licensed, and has to take the waste to an approved disposal site. That license is the thing to check. It is the difference between your waste reaching a treatment plant and being dumped somewhere it should not be.

Texas pumping rule: No fixed statewide pumping interval. TCEQ guidance recommends pumping conventional tanks every 3-5 years based on use and sludge accumulation. Aerobic Treatment Units (ATUs) are different: they require a continuous maintenance contract with a licensed provider and inspection every 4 months (3x/year) for the life of the system under 30 TAC 285.

Confirm locally
  • That the company you call still holds a current license. This site is built to make that easy to check

Your permit is issued locally, not by Texas Commission on Environmental Quality directly. Find your county’s office · Texas septic rules in plain English

Selling or buying the home in Texas

No statewide requirement

Texas does not require a septic inspection when a house changes hands. If one happens, it is usually because the lender, the buyer, or the contract asks for it.

Not required is not the same as not worth doing. Once the sale closes, a broken system is the buyer's problem to pay for, and replacing one is among the most expensive things that can go wrong with a septic property. Most buyers should get it inspected anyway.

Texas specifics: state law does not mandate a point-of-sale inspection.

Confirm locally
  • Whether your county or town has its own rule about inspections at sale. A few do, and they can ask for more than the state does
  • What your lender wants, which is often stricter than either

Your permit is issued locally, not by Texas Commission on Environmental Quality directly. Find your county’s office · Texas septic rules in plain English

The Texas statutes behind these answers
  • Texas Health and Safety Code, Chapter 366 (On-Site Sewage Disposal Systems)
    The enabling statute that gives TCEQ authority over OSSFs, defines on-site sewage disposal systems, and authorizes counties, municipalities, and districts to act as local 'authorized agents' that issue permits and enforce the rules.
    Read the statute ↗
  • 30 TAC Chapter 285 (On-Site Sewage Facilities)
    The core administrative rules: minimum technical standards for design, planning materials, construction, installation, setbacks, soil/site evaluation, permitting, the authorized-agent program, and mandatory aerobic maintenance contracts.
    Read the statute ↗
  • 30 TAC 285.40 / Chapter 213 (Edwards Aquifer Recharge Zone)
    Special requirements for OSSFs over the Edwards Aquifer Recharge Zone: minimum 1-acre lots per single-family dwelling, 50-ft setback from recharge features, and planning materials sealed by a professional engineer or sanitarian.
    Read the statute ↗
  • TREC/TXR Seller's Disclosure (On-Site Sewer Facility, TXR-1407)
    Texas does not require a septic inspection at sale, but a residential seller must disclose the existence and known condition of any OSSF on the standard Seller's Disclosure Notice, with the supplemental on-site sewer facility form attached.
    Read the statute ↗

North Carolina

North Carolina Department of Health and Human Services (NC DHHS), Division of Public Health — Environmental Health Section, On-Site Water Protection Branch (OSWP) · On-Site Water Protection (OSWP) Program

Installing a new system in North Carolina

Permit required

Yes. North Carolina requires a permit before a new septic system goes in. If you start without one, you can be made to dig it back up.

The order is the same in all five states we cover. Someone tests your soil, a system is designed to suit that soil and the size of your house, the permit is issued, a licensed contractor installs it, and an inspector signs it off before it can be buried and used. The soil test comes first because it decides what system you are allowed to put in, so book that before you order anything.

Confirm locally
  • What the permit costs and how long it takes, both of which your county sets
  • Whether the health department tests your soil, or you hire an approved private evaluator
  • How far the system has to sit from your well, your property line, and any lake, creek or pond

Your permit is issued locally, not by North Carolina Department of Health and Human Services directly. Find your county’s office · North Carolina septic rules in plain English

Replacing a whole system in North Carolina

Permit required

Yes. North Carolina treats a full replacement the same as a brand-new system, so you need a permit before work starts.

Expect the new system to differ from the old one. A system approved thirty years ago often would not be approved today, and the replacement has to meet current rules rather than match what was there. If your property sits in an area the state protects for its water quality, this is usually the point where you are required to upgrade to a system that removes more nitrogen.

Confirm locally
  • Whether your property sits in a protected water area, which can change the type of system you are allowed
  • Whether your county runs a grant or cost-sharing program that would help pay for it
  • Whether the old tank can be reused, or has to be emptied and permanently sealed

Your permit is issued locally, not by North Carolina Department of Health and Human Services directly. Find your county’s office · North Carolina septic rules in plain English

Repairing or replacing a drainfield in North Carolina

Permit almost always required

Almost always. North Carolina regulates drainfield work, and you normally need a permit before it starts.

Counties decide what counts as a small repair versus a change that needs a permit, and most draw that line strictly. Fixing a drainfield usually means putting pipe into ground that was not used before, which is the part the permit exists to control. Assume you need one, and check before you book the work rather than after.

Confirm locally
  • Where your county draws the line between a small repair and work that needs a permit
  • Whether the new area has to have its soil tested first

Your permit is issued locally, not by North Carolina Department of Health and Human Services directly. Find your county’s office · North Carolina septic rules in plain English

Replacing the tank in North Carolina

Permit almost always required

Almost always. In North Carolina, swapping out a septic tank normally needs a permit.

The new tank has to meet today's rules for a house your size, which often means a bigger tank than the one you are taking out. The old tank has to be pumped out and permanently sealed or removed. Leaving it buried and full is not allowed, and it is a collapse risk.

Confirm locally
  • The smallest tank your county allows for a house with your number of bedrooms
  • What your county requires you to do with the old tank

Your permit is issued locally, not by North Carolina Department of Health and Human Services directly. Find your county’s office · North Carolina septic rules in plain English

Routine pumping in North Carolina

No permit needed

No. You do not need a permit to have your tank pumped in North Carolina.

The rules apply to the company, not to you. Whoever pumps your tank has to be licensed, and has to take the waste to an approved disposal site. That license is the thing to check. It is the difference between your waste reaching a treatment plant and being dumped somewhere it should not be.

North Carolina pumping rule: No statewide mandatory pumping interval. 15A NCAC 18E requires owners to keep the system functioning as permitted; NC DHHS and county health departments recommend pumping every 3-5 years for typical households. Some advanced/engineered and large systems carry an Operation Permit with mandatory management/maintenance contracts and periodic reporting.

Confirm locally
  • That the company you call still holds a current license. This site is built to make that easy to check

Your permit is issued locally, not by North Carolina Department of Health and Human Services directly. Find your county’s office · North Carolina septic rules in plain English

Selling or buying the home in North Carolina

No statewide requirement

North Carolina does not require a septic inspection when a house changes hands. If one happens, it is usually because the lender, the buyer, or the contract asks for it.

Not required is not the same as not worth doing. Once the sale closes, a broken system is the buyer's problem to pay for, and replacing one is among the most expensive things that can go wrong with a septic property. Most buyers should get it inspected anyway.

North Carolina specifics: state law does not mandate a point-of-sale inspection.

Confirm locally
  • Whether your county or town has its own rule about inspections at sale. A few do, and they can ask for more than the state does
  • What your lender wants, which is often stricter than either

Your permit is issued locally, not by North Carolina Department of Health and Human Services directly. Find your county’s office · North Carolina septic rules in plain English

The North Carolina statutes behind these answers
  • 15A NCAC 18E — On-Site Wastewater Treatment and Dispersal Systems
    The core administrative code (fully rewritten effective Jan 1, 2024 — the biggest overhaul in 34 years). Sets soil-morphology-based site evaluation, system design/classification, and the three-permit sequence: Improvement Permit (IP) -> Construction Authorization (CA) -> Operation Permit (OP).
    Read the statute ↗
  • NC General Statutes Chapter 130A, Article 11 — Wastewater Systems
    Enabling statute giving DHHS rulemaking authority and county health departments permitting/enforcement authority over on-site wastewater systems; defines permit requirements, repair obligations, and penalties.
    Read the statute ↗
  • 21 NCAC 39 — On-Site Wastewater Contractors and Inspectors Certification Board
    Rules establishing the NCOWCICB and the Installer, Point of Sale Inspector, and Authorized On-Site Wastewater Evaluator certifications, including who may legally install systems or perform real-estate septic inspections.
    Read the statute ↗

Georgia

Georgia Department of Public Health (DPH), Environmental Health Section · On-Site Sewage Management Systems Program (Chapter 511-3-1)

Installing a new system in Georgia

Permit required

Yes. Georgia requires a permit before a new septic system goes in. If you start without one, you can be made to dig it back up.

The order is the same in all five states we cover. Someone tests your soil, a system is designed to suit that soil and the size of your house, the permit is issued, a licensed contractor installs it, and an inspector signs it off before it can be buried and used. The soil test comes first because it decides what system you are allowed to put in, so book that before you order anything.

Confirm locally
  • What the permit costs and how long it takes, both of which your county sets
  • Whether the health department tests your soil, or you hire an approved private evaluator
  • How far the system has to sit from your well, your property line, and any lake, creek or pond

Your permit is issued locally, not by Georgia Department of Public Health directly. Find your county’s office · Georgia septic rules in plain English

Replacing a whole system in Georgia

Permit required

Yes. Georgia treats a full replacement the same as a brand-new system, so you need a permit before work starts.

Expect the new system to differ from the old one. A system approved thirty years ago often would not be approved today, and the replacement has to meet current rules rather than match what was there. If your property sits in an area the state protects for its water quality, this is usually the point where you are required to upgrade to a system that removes more nitrogen.

Confirm locally
  • Whether your property sits in a protected water area, which can change the type of system you are allowed
  • Whether your county runs a grant or cost-sharing program that would help pay for it
  • Whether the old tank can be reused, or has to be emptied and permanently sealed

Your permit is issued locally, not by Georgia Department of Public Health directly. Find your county’s office · Georgia septic rules in plain English

Repairing or replacing a drainfield in Georgia

Permit almost always required

Almost always. Georgia regulates drainfield work, and you normally need a permit before it starts.

Counties decide what counts as a small repair versus a change that needs a permit, and most draw that line strictly. Fixing a drainfield usually means putting pipe into ground that was not used before, which is the part the permit exists to control. Assume you need one, and check before you book the work rather than after.

Confirm locally
  • Where your county draws the line between a small repair and work that needs a permit
  • Whether the new area has to have its soil tested first

Your permit is issued locally, not by Georgia Department of Public Health directly. Find your county’s office · Georgia septic rules in plain English

Replacing the tank in Georgia

Permit almost always required

Almost always. In Georgia, swapping out a septic tank normally needs a permit.

The new tank has to meet today's rules for a house your size, which often means a bigger tank than the one you are taking out. The old tank has to be pumped out and permanently sealed or removed. Leaving it buried and full is not allowed, and it is a collapse risk.

Confirm locally
  • The smallest tank your county allows for a house with your number of bedrooms
  • What your county requires you to do with the old tank

Your permit is issued locally, not by Georgia Department of Public Health directly. Find your county’s office · Georgia septic rules in plain English

Routine pumping in Georgia

No permit needed

No. You do not need a permit to have your tank pumped in Georgia.

The rules apply to the company, not to you. Whoever pumps your tank has to be licensed, and has to take the waste to an approved disposal site. That license is the thing to check. It is the difference between your waste reaching a treatment plant and being dumped somewhere it should not be.

Georgia pumping rule: No statewide mandatory pumping interval. DPH recommends pumping every 3-5 years based on tank size and household use. Some advanced/aerobic systems require a maintenance contract per their permit; a few local jurisdictions add operating-permit conditions.

Confirm locally
  • That the company you call still holds a current license. This site is built to make that easy to check

Your permit is issued locally, not by Georgia Department of Public Health directly. Find your county’s office · Georgia septic rules in plain English

Selling or buying the home in Georgia

No statewide requirement

Georgia does not require a septic inspection when a house changes hands. If one happens, it is usually because the lender, the buyer, or the contract asks for it.

Not required is not the same as not worth doing. Once the sale closes, a broken system is the buyer's problem to pay for, and replacing one is among the most expensive things that can go wrong with a septic property. Most buyers should get it inspected anyway.

Georgia specifics: state law does not mandate a point-of-sale inspection.

Confirm locally
  • Whether your county or town has its own rule about inspections at sale. A few do, and they can ask for more than the state does
  • What your lender wants, which is often stricter than either

Your permit is issued locally, not by Georgia Department of Public Health directly. Find your county’s office · Georgia septic rules in plain English

The Georgia statutes behind these answers
  • GA Comp. R. & Regs. Chapter 511-3-1 — On-Site Sewage Management Systems
    The core rule set governing site evaluation, permitting, design, installation, repair, and setbacks for all conventional and alternative septic systems statewide. Last major revision effective 01/01/2016. Requires a county construction permit before any install, modification, or repair, valid up to 12 months.
    Read the statute ↗
  • DPH Manual for On-Site Sewage Management Systems
    Technical companion to Chapter 511-3-1 (updated 2024-2025). Defines soil-evaluation checklists, absorption-field sizing by bedroom count, separation distances, and approved alternative technologies that county environmental health staff apply.
    Read the statute ↗
  • O.C.G.A. Title 31, Chapter 2A & Title 12 (water quality)
    Statutory authority empowering DPH to write onsite-sewage rules and county Boards of Health to enforce them; related EPD water-quality statutes protect groundwater and surface waters that septic setbacks are designed to safeguard.
    Read the statute ↗

Tennessee

Tennessee Department of Environment and Conservation (TDEC), Division of Water Resources · Subsurface Sewage Disposal System (SSDS) Program

Installing a new system in Tennessee

Permit required

Yes. Tennessee requires a permit before a new septic system goes in. If you start without one, you can be made to dig it back up.

The order is the same in all five states we cover. Someone tests your soil, a system is designed to suit that soil and the size of your house, the permit is issued, a licensed contractor installs it, and an inspector signs it off before it can be buried and used. The soil test comes first because it decides what system you are allowed to put in, so book that before you order anything.

Confirm locally
  • What the permit costs and how long it takes, both of which your county sets
  • Whether the health department tests your soil, or you hire an approved private evaluator
  • How far the system has to sit from your well, your property line, and any lake, creek or pond

Your permit is issued locally, not by Tennessee Department of Environment and Conservation directly. Find your county’s office · Tennessee septic rules in plain English

Replacing a whole system in Tennessee

Permit required

Yes. Tennessee treats a full replacement the same as a brand-new system, so you need a permit before work starts.

Expect the new system to differ from the old one. A system approved thirty years ago often would not be approved today, and the replacement has to meet current rules rather than match what was there. If your property sits in an area the state protects for its water quality, this is usually the point where you are required to upgrade to a system that removes more nitrogen.

Confirm locally
  • Whether your property sits in a protected water area, which can change the type of system you are allowed
  • Whether your county runs a grant or cost-sharing program that would help pay for it
  • Whether the old tank can be reused, or has to be emptied and permanently sealed

Your permit is issued locally, not by Tennessee Department of Environment and Conservation directly. Find your county’s office · Tennessee septic rules in plain English

Repairing or replacing a drainfield in Tennessee

Permit almost always required

Almost always. Tennessee regulates drainfield work, and you normally need a permit before it starts.

Counties decide what counts as a small repair versus a change that needs a permit, and most draw that line strictly. Fixing a drainfield usually means putting pipe into ground that was not used before, which is the part the permit exists to control. Assume you need one, and check before you book the work rather than after.

Confirm locally
  • Where your county draws the line between a small repair and work that needs a permit
  • Whether the new area has to have its soil tested first

Your permit is issued locally, not by Tennessee Department of Environment and Conservation directly. Find your county’s office · Tennessee septic rules in plain English

Replacing the tank in Tennessee

Permit almost always required

Almost always. In Tennessee, swapping out a septic tank normally needs a permit.

The new tank has to meet today's rules for a house your size, which often means a bigger tank than the one you are taking out. The old tank has to be pumped out and permanently sealed or removed. Leaving it buried and full is not allowed, and it is a collapse risk.

Confirm locally
  • The smallest tank your county allows for a house with your number of bedrooms
  • What your county requires you to do with the old tank

Your permit is issued locally, not by Tennessee Department of Environment and Conservation directly. Find your county’s office · Tennessee septic rules in plain English

Routine pumping in Tennessee

No permit needed

No. You do not need a permit to have your tank pumped in Tennessee.

The rules apply to the company, not to you. Whoever pumps your tank has to be licensed, and has to take the waste to an approved disposal site. That license is the thing to check. It is the difference between your waste reaching a treatment plant and being dumped somewhere it should not be.

Tennessee pumping rule: No statewide mandatory pumping schedule for conventional systems. TDEC recommends inspection/pumping every 3-5 years. Septage pumpers and haulers must be licensed by the state, and many drip/alternative systems carry mandatory operating permits with periodic maintenance requirements.

Confirm locally
  • That the company you call still holds a current license. This site is built to make that easy to check

Your permit is issued locally, not by Tennessee Department of Environment and Conservation directly. Find your county’s office · Tennessee septic rules in plain English

Selling or buying the home in Tennessee

No statewide requirement

Tennessee does not require a septic inspection when a house changes hands. If one happens, it is usually because the lender, the buyer, or the contract asks for it.

Not required is not the same as not worth doing. Once the sale closes, a broken system is the buyer's problem to pay for, and replacing one is among the most expensive things that can go wrong with a septic property. Most buyers should get it inspected anyway.

Tennessee specifics: state law does not mandate a point-of-sale inspection.

Confirm locally
  • Whether your county or town has its own rule about inspections at sale. A few do, and they can ask for more than the state does
  • What your lender wants, which is often stricter than either

Your permit is issued locally, not by Tennessee Department of Environment and Conservation directly. Find your county’s office · Tennessee septic rules in plain English

The Tennessee statutes behind these answers
  • TDEC Rule Chapter 0400-48-01, Regulations to Govern Subsurface Sewage Disposal Systems
    The core rule chapter governing site evaluation, soil/percolation requirements, system design, setbacks, installer licensing, permits, and final inspection (Certificate of Completion) for all conventional and alternative septic systems statewide.
    Read the statute ↗
  • Tenn. Code Ann. Title 68, Chapter 221, Part 4 (Water and Sewerage / Subsurface Sewage Disposal)
    Enabling statute giving TDEC authority over subsurface sewage disposal, installer licensing, and enforcement; delegates day-to-day permitting to local environmental health offices.
    Read the statute ↗
  • Tenn. Comp. R. & Regs. 0400-48-01-.07, Design of the Conventional Disposal Field
    Sets the technical standards for sizing and laying out conventional drainfields based on soil percolation/loading rates, trench depth, and slope limits.
    Read the statute ↗

SepticRoster is an independent directory. This page summarises state-level requirements for general guidance and is not legal advice. Permitting is administered locally and local rules can be stricter than the state minimum — confirm with your county office before starting work.