Understanding FOG Compliance for Los Angeles Restaurants

If you operate a restaurant or food service establishment in Los Angeles, FOG (Fats, Oils, and Grease) compliance is not optional. It is a regulatory requirement enforced by LA Sanitation, the Los Angeles Department of Building and Safety (LADBS), and your local sewer authority. Violations can result in fines, mandatory corrective action, and in serious cases, suspension of food service permits.

This guide explains what FOG compliance actually requires under LAMC Section 171, what inspectors look for, and how to set up a system that keeps you compliant without scrambling.

What Is FOG and Why Does LA Care?

FOG stands for Fats, Oils, and Grease. These are byproducts of cooking that, when poured down drains, accumulate in sewer lines. Unlike water, grease does not flow indefinitely. It cools, hardens, and sticks to the inside of pipes. Over time, accumulated grease creates blockages that restrict sewer flow, cause sewage overflows, and damage public infrastructure.

Los Angeles has one of the largest sewer systems in the United States. The city processes hundreds of millions of gallons of wastewater every day. Grease blockages from food service establishments are one of the leading causes of sanitary sewer overflows (SSOs), which discharge raw sewage into streets, storm drains, and ultimately the ocean. The environmental and public health consequences are serious enough that LA Sanitation aggressively enforces FOG control.

That enforcement falls primarily on food service establishments. Under LAMC Section 171 and the LA Sanitation FOG Control Program, restaurants are required to install and maintain grease control equipment, pump that equipment on a regular schedule, and document everything for inspection.

The Core Requirements

Compliance under LAMC Section 171 has five core requirements. Each one matters individually, and together they form the basis of every FOG inspection.

1. Grease Trap or Interceptor Installation

Every food service establishment in LA must have grease control equipment sized appropriately for its operation. The choice between a grease trap (smaller, in-kitchen) and a grease interceptor (larger, in-ground) is made during plan check based on seating capacity, expected wastewater volume, and the type of cooking equipment in the kitchen.

Smaller cafes, coffee shops, and food kiosks typically install grease traps in the under-100-gallon range. Larger restaurants with full kitchens, multiple cooking lines, and high seating counts are required to install grease interceptors of 500 gallons or more. The threshold is set by LA Sanitation engineering staff during the permit process.

If you are operating in an existing kitchen and unsure what equipment you have, the simplest test is location. Trap inside the kitchen near a sink? Probably under 100 gallons. Equipment outside the building with a manhole cover? Probably an interceptor. You can also pull your original plumbing permits from LADBS records to confirm.

2. Regular Pumping

LAMC Section 171 requires grease control equipment to be pumped before it reaches 25% capacity, or every 90 days at minimum, whichever comes first. The 25% threshold is the operating rule. The 90-day backstop applies even if your equipment is technically below 25%.

For most LA restaurants, the real schedule is much shorter than 90 days. Moderate-volume kitchens fill grease traps in 30 to 45 days. High-volume kitchens (Korean BBQ, fast food, fryer-heavy concepts) fill them in 14 to 21 days. The 90-day rule exists as a regulatory floor, not a target.

The right schedule for your kitchen depends on volume measurements. After three or four pump-outs, your vendor should be able to tell you the optimal interval based on actual data. GreaseGrid stores volume data from every service and surfaces schedule recommendations automatically.

3. Licensed Waste Haulers Only

Only licensed waste haulers may pump and transport grease trap waste in Los Angeles County. The licensing requirement covers business licensing, waste hauler permits, and liability insurance. Unlicensed haulers create automatic compliance violations even if the work itself was performed correctly.

Always verify your vendor holds current credentials before each service. License lapses happen, and the gap between renewal dates can create documentation problems even when the underlying service was fine. GreaseGrid verifies vendor credentials before every job, so customers do not have to track this manually.

The licensing requirement also means you cannot do this yourself. Operating a grease trap pump-out without proper licensing is not just a corner-cut. It is a regulatory violation with real consequences.

4. Documentation and Record-Keeping

Every pump-out must be documented with:

A waste manifest showing volume removed and disposal facility
Vendor identification and license verification
Date, time, and location of service
Photos of equipment condition (recommended, increasingly expected by inspectors)
Disposal facility receipts (for high-volume operations)

LA Sanitation requires food service establishments to maintain these records and produce them on demand. The retention period is typically 3 years, though many operators retain longer.

Documentation gaps are the most common reason for FOG inspection findings. The underlying service is usually fine. The paperwork is not. Restaurants that store manifests in email, photos on a manager's phone, and licenses in random folders cannot produce a complete proof packet quickly during an inspection. Inspectors notice and document everything that is missing.

A coordination platform like GreaseGrid produces complete proof packets within 24 hours of every service, stored permanently and accessible from any device. This eliminates the most common cause of compliance failures.

5. Equipment Maintenance and Condition

The fifth requirement is often overlooked: the equipment itself must be in good working order. Grease traps and interceptors have moving parts (well, baffles) that can wear out, lids that can crack and leak, and inlet and outlet pipes that can develop buildup over time.

LAMC Section 171 requires food service establishments to maintain equipment in functional condition. An LA Sanitation inspector who finds damaged baffles, a cracked lid, or visible leaks will issue a corrective action notice even if the pump-out schedule is current. The reasoning: damaged equipment cannot do its job, regardless of how often it is serviced.

Annual professional inspections catch these issues before they become violations. Most vendors will perform a basic equipment check during routine pump-outs and flag anything that needs repair.

What Inspectors Actually Check

LA Sanitation FOG inspectors are trained to verify a few things during a routine inspection:

Service records for the most recent 6 to 12 months
Vendor license at the time of each service (not just current license)
Waste manifest for each service with disposal facility named
Volume removed (compared to equipment capacity to verify the 25% rule)
Physical condition of the trap or interceptor
Photos or visual evidence of recent service
Compliance summary showing year-to-date services

A complete proof packet covers all of these in one document bundle. Without one, the inspector has to ask question by question and the inspection takes 90 minutes instead of 10. With a complete packet, an inspection that finds no violations ends in under 15 minutes.

Inspectors also note documentation quality. A restaurant with neat, organized, complete records signals an operator who takes compliance seriously. A restaurant with fragmented, partial records signals the opposite, and inspectors dig deeper.

Common Violations and Their Consequences

The most common FOG violations and what they cost:

Late pump-out beyond 90 days. Triggers a corrective action notice. Repeat offenses or extended delays escalate to fines starting around $500 and increasing per violation. Continued non-compliance can lead to permit suspension.

Missing waste manifest. Treated as if the service never happened. Same consequences as a late pump-out, plus questions about whether unlicensed dumping occurred.

Unlicensed hauler. Automatic violation regardless of when the service occurred. The waste manifest from an unlicensed hauler is invalid for compliance purposes.

Damaged or non-functional equipment. Corrective action notice with required repair timeline. Continued use of damaged equipment is a separate violation.

Sanitary sewer overflow caused by FOG. This is the worst case. Fines can reach tens of thousands of dollars. The city can require the restaurant to pay for sewer cleaning, environmental cleanup, and any damages downstream. Repeat SSOs from the same establishment can result in permit revocation.

The economic case for compliance is straightforward: the cost of regular pump-outs is far less than the cost of a single serious violation, and the cost of a violation is far less than the cost of an SSO.

Setting Up a Compliant System

For most LA restaurants, the path to consistent compliance has three pieces:

Recurring service. Pick an interval that matches your volume. Set up auto-recurring pump-outs through a coordination platform or directly with a vendor. Stop relying on manual reminders. The risk of a missed pump-out drops to nearly zero with a recurring schedule.

Centralized documentation. Store every proof packet in one place. Cloud folder, vault system, or coordination platform. The goal is a single source of truth that you can access during an inspection without searching email.

Quarterly compliance reviews. Once every 90 days, verify that the last 3 months of services are complete, the next service is scheduled, and all documentation is current. This is the practice that catches small problems before they become inspection findings.

GreaseGrid handles all three of these automatically. Recurring service is built into the Monthly and Portfolio plans. Documentation is centralized in the compliance vault. Quarterly reviews are unnecessary because the system never lets things drift.

How GreaseGrid Helps

GreaseGrid Concierge simplifies FOG compliance by:

Coordinating licensed vendors with verified credentials
Managing recurring pump-out schedules based on your equipment and volume
Producing complete proof packets within 24 hours of every service
Storing proof packets permanently in your compliance vault
Sending automated reminders before pump-out windows close
Providing inspection-ready documentation accessible from any device

We are a transparent coordinator. Vendors perform the physical work. We handle scheduling, documentation, and compliance tracking. Customers pay vendors directly for pumping services. GreaseGrid charges a separate coordination fee.

Request service or view our recurring plans.