Restaurant Grease Disposal Laws: A State-by-State Overview (2026)

Every restaurant in America that prepares food and discharges wastewater is subject to grease disposal regulations. But figuring out exactly which rules apply to your restaurant — and who enforces them — can be genuinely confusing.

Grease disposal laws operate at three levels: federal, state, and local. The federal level sets the broad framework, states add their own requirements, and individual cities and counties create the specific rules you deal with day to day. This guide breaks down how the system works, what the common requirements are across the country, and what happens when restaurants get it wrong.

The Federal Framework: Clean Water Act and EPA

At the top of the regulatory pyramid is the Clean Water Act (CWA), the foundational federal law that governs water pollution in the United States. The CWA prohibits the discharge of pollutants into navigable waters without a permit, and fats, oils, and grease (FOG) are classified as pollutants.

The EPA administers the National Pretreatment Program, which requires publicly owned treatment works (POTWs) — your municipal wastewater treatment plants — to control pollutant discharges from commercial and industrial users before they enter the sewer system. This is the legal basis for your local sewer authority's FOG program.

The federal government does not directly tell your restaurant how big your grease trap needs to be or how often to clean it. Instead, it requires municipalities to create and enforce those standards locally. This is why regulations vary so much from one city to the next.

Key Federal Requirements That Affect Restaurants

• General Prohibition: No discharge of pollutants that cause pass-through (pollutants passing through the treatment plant into waterways) or interference (pollutants disrupting treatment plant operations).
• Specific Prohibitions: No discharge of petroleum oil, non-biodegradable cutting oil, or mineral oil products. While cooking grease is biodegradable, excessive FOG discharge that causes sewer blockages violates pretreatment standards.
• Recordkeeping: Commercial users must maintain records of their discharges and make them available for inspection.

How State Regulations Work

States play a middle role in the regulatory structure. Some states have comprehensive statewide FOG regulations; others delegate almost everything to local jurisdictions. Here is how the landscape generally breaks down.

States with Strong Statewide FOG Programs

These states have detailed statewide requirements that apply to all food service establishments:

• California: One of the strictest states. Most regional water quality control boards require grease interceptors for all food service establishments. Many California cities add additional requirements on top of state standards. Cleaning frequency is typically mandated at a minimum of every 90 days, with many cities requiring monthly service for high-volume kitchens.
• Texas: The Texas Commission on Environmental Quality (TCEQ) regulates grease trap waste as a special waste. Haulers must be registered, and disposal must occur at permitted facilities. Many Texas cities — including Houston, Dallas, San Antonio, and Austin — have aggressive FOG enforcement programs.
• Florida: Florida's Department of Environmental Protection requires proper grease management, and most counties have detailed FOG ordinances. South Florida jurisdictions are particularly strict due to the region's flat terrain and susceptibility to sewer overflows.
• Georgia: Georgia's Environmental Protection Division oversees FOG management, and metropolitan Atlanta has one of the most comprehensive FOG programs in the Southeast.
• North Carolina: State plumbing code requires grease interceptors for commercial kitchens, with specific sizing requirements based on fixture flow rates.

States Where Local Rules Dominate

In many states, the state government provides a general framework but leaves specific FOG requirements to cities and counties. This includes states like:

• New York: New York City has its own detailed DEP FOG program, while requirements in upstate communities vary significantly by municipality.
• Illinois: Chicago has strict FOG rules; smaller Illinois cities have varying levels of enforcement.
• Pennsylvania: Philadelphia's Water Department runs a comprehensive grease management program, but requirements vary widely across the state.
• Ohio, Michigan, Virginia, Washington: Similar pattern — major cities have detailed programs; rural areas may have minimal formal requirements.

Common Local Requirements Across Jurisdictions

Despite the variation, most FOG programs share a core set of requirements. If you operate a restaurant anywhere in the U.S., you can expect these common obligations.

Grease Trap or Interceptor Installation

Nearly every jurisdiction requires food service establishments to install a grease trap or grease interceptor on all drain lines that carry FOG-laden wastewater. The size requirement is typically based on the flow rate from your kitchen fixtures, calculated using formulas from the Uniform Plumbing Code (UPC) or International Plumbing Code (IPC).

Regular Cleaning on a Mandated Schedule

Most jurisdictions require cleaning at least every 90 days (quarterly). Many high-enforcement cities require monthly cleaning for restaurants that produce heavy grease volumes. The industry standard "quarter rule" — clean when FOG reaches 25 percent of trap capacity — is codified in many local ordinances.

Licensed Hauler Requirement

Grease trap waste must be removed by a licensed waste transporter in most jurisdictions. You generally cannot pump your own trap and haul the waste yourself. The hauler must be registered with the state environmental agency and transport waste to a permitted disposal or recycling facility.

Manifest and Record Retention

You must maintain cleaning records — typically pump-out manifests — for 3 to 5 years and make them available for inspection. See our detailed guide on grease trap record keeping for specifics on what to document.

Best Management Practices (BMPs)

Many FOG programs require restaurants to implement specific best management practices including employee training, dry cleanup methods, proper used cooking oil storage, and posting of kitchen signage about grease disposal procedures.

Penalties for Non-Compliance

Violating grease disposal laws is not a minor infraction. Penalties have increased significantly as municipalities struggle with FOG-related sewer overflows — which the EPA estimates contribute to over 47 percent of sanitary sewer overflows nationally.

Common Penalties by Violation Type

Escalation Process

Most jurisdictions follow a progressive enforcement approach:

1. Warning notice: First violation typically results in a written notice with a deadline to correct the issue.
2. Notice of violation (NOV): If the issue is not corrected, a formal NOV is issued, often with a fine.
3. Administrative order: Continued non-compliance can result in a compliance order that mandates specific actions and timelines, often with daily penalties for non-compliance.
4. Permit action: In extreme cases, the sewer authority can revoke your discharge permit, which effectively means you cannot operate a kitchen that discharges to the public sewer.
5. Legal action: Municipalities can and do pursue civil or criminal charges for severe or repeated violations, particularly illegal dumping.

Illegal Dumping: The Consequences Are Severe

Illegal grease dumping — pouring used cooking oil or grease trap waste into storm drains, dumpsters, vacant lots, or anywhere other than a permitted disposal facility — is treated as an environmental crime in most jurisdictions.

Municipalities have become increasingly sophisticated in detecting illegal dumping:

• Surveillance cameras at known dumping locations (storm drains, manholes)
• Chemical tracing that can identify the source of grease found in sewer blockages
• GPS tracking on licensed hauler trucks to verify waste is delivered to approved facilities
• Tip lines and rewards for reporting illegal dumping

Beyond fines, illegal dumping can result in:

• Criminal prosecution (misdemeanor or felony depending on severity)
• Civil liability for cleanup costs, which can reach tens of thousands of dollars
• Business license suspension or revocation
• Negative publicity that damages your restaurant's reputation
• Personal liability for owners and managers

Used Cooking Oil: A Separate Set of Rules

It is important to distinguish between grease trap waste and used cooking oil (UCO). They are regulated differently in most jurisdictions.

Grease trap waste — the mixture of FOG, water, and food solids pumped from your trap — is classified as a waste product and must be disposed of at a permitted facility by a licensed hauler.

Used cooking oil — the fryer oil and other cooking oils you collect separately — is considered a recyclable commodity. It can be picked up by a rendering company or UCO recycler and converted into biodiesel, animal feed, or other products. Many recyclers will collect UCO for free or even pay you for it.

The key legal requirement is that UCO must be stored properly (in sealed containers, not leaking) and collected by a registered transporter. Dumping UCO in the trash, down the drain, or in a storm drain is illegal.

How to Stay Compliant: A Practical Checklist

Regardless of your specific jurisdiction, following this checklist will keep you in compliance with grease disposal laws virtually anywhere in the country:

1. Install a properly sized grease trap or interceptor. Verify it meets your local plumbing code requirements for your kitchen's flow rate.
2. Hire a licensed grease trap cleaning company. Verify their waste transporter license and confirm they dispose of waste at a permitted facility. Search for licensed companies in your area.
3. Clean on schedule. At minimum, every 90 days. More frequently if your jurisdiction requires it or your trap reaches the 25 percent threshold sooner.
4. Keep detailed records. Save every manifest and maintain a cleaning log for at least 5 years.
5. Recycle used cooking oil separately. Partner with a registered UCO recycler and store oil properly.
6. Train your staff. Educate kitchen employees on proper grease disposal, drain screens, plate scraping, and what never goes down the drain.
7. Know your local contact. Identify your local sewer authority's FOG program contact. Call them proactively to ask about your obligations — they would much rather help you comply than fine you.
8. Respond to violations immediately. If you receive a notice, address the issue within the specified deadline and document your corrective action.

Finding Your Local Regulations

To find the specific grease disposal laws that apply to your restaurant:

• Search "[your city] FOG program" or "[your city] grease trap ordinance" online
• Contact your local sewer authority or wastewater department
• Ask your local health department — they can direct you to the right agency
• Check our state compliance guide for an overview of requirements by state
• Ask your grease trap service provider — reputable companies know the local rules and can help you understand them

The Bottom Line

Grease disposal laws exist because FOG causes real damage to public infrastructure. Sewer overflows triggered by grease blockages cost municipalities billions of dollars annually and create environmental and public health hazards. The regulations are not going away — if anything, enforcement is getting stricter.

The good news is that compliance is straightforward. Install the right equipment, clean it on schedule, hire licensed haulers, keep your records, and train your staff. Do those five things and you will never have to worry about grease disposal fines or enforcement actions.

Need help finding a licensed grease trap service in your area? Request a free quote from verified companies that handle proper disposal and documentation.

Related articles:

• FOG Compliance for Restaurants: A Complete Guide
• Grease Trap Maintenance Records: What to Keep and Why
• What Happens If You Don't Clean Your Grease Trap?