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Quick AnswerReviewed by LA Restaurant ServicesUpdated April 2, 2026

Any Los Angeles food operation that cooks and discharges to sewer generally needs a grease interceptor, including restaurants, ghost kitchens, and commissary-based operations.

Need service support now? Compare grease trap cleaning and grease interceptor pumping options before requesting service.

Common questions

Do ghost kitchens need grease traps in Los Angeles?

Yes. Ghost kitchens are treated as food service establishments when they cook and discharge wastewater to sewer.

Are food trucks exempt from grease trap rules?

Food trucks rely on licensed commissaries, and those commissaries must meet grease interceptor requirements.

Who decides if my kitchen requires an interceptor?

LACDPH Environmental Health and local sanitation authorities determine requirements based on your operation and discharge profile.

General Guidance

Which Restaurants in Los Angeles Need a Grease Trap?

Restaurants and commercial kitchens that generate fats, oils, and grease (FOG) may need a grease trap or grease interceptor depending on local requirements, kitchen fixtures, and sewer connection setup.

This page is for general informational purposes and is not legal or official compliance advice.

LA Restaurant Services · Field Technician Notes

Not sure about your service schedule? See how often grease trap service is required based on your kitchen type.

Need grease trap cleaning or interceptor pumping in Los Angeles?

Request service from LA Restaurant Services.

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Direct answer

Many Los Angeles food operations that prepare food and discharge to the sanitary sewer may need grease traps or interceptors. In practice, this often includes restaurants, commercial kitchens, cafes, bars, hotels, ghost kitchens, and shared kitchen facilities.

Final requirements depend on your kitchen setup, fixture counts, and local agency interpretation. Confirm your classification with your district office, then align service scheduling to protect operations.

Who may need a grease trap

Full-service restaurants

Commonly Required

Restaurants that cook food and discharge wash water into the sanitary sewer commonly need grease management equipment. This often includes sit-down restaurants, quick-service locations, bars with kitchens, and hotel dining operations.

School cafeterias and institutional kitchens

Commonly Required

K-12 schools, college dining halls, hospital cafeterias, and similar institutional kitchens are commonly treated as food service operations that need properly sized grease control systems.

Food trucks and mobile vendors

Via Commissary

Food trucks do not usually connect directly to sewer lines, but they often rely on commissaries that may need compliant grease management systems. It is best to verify your commissary setup with your local authority.

Ghost kitchens and delivery-only operations

Commonly Required

Ghost kitchens and delivery-only operations can produce the same FOG load as traditional restaurants, so they may need grease traps or interceptors based on kitchen activity and plumbing setup.

Catering companies with commissary kitchens

Commonly Required

Catering operations that prep at fixed facilities or commissaries may need grease control equipment depending on discharge points and local requirements.

Coffee shops and juice bars

Verify with LACDPH

Some low-FOG concepts may have different requirements, while locations with food prep or blending may still need grease control. Confirm your specific setup with your local Environmental Health district office.

Signs your grease trap needs service

Watch for operational signs that service may be due:

If you're experiencing recurring backups or slow drains, learn what happens when service is skipped and how often you may need scheduled maintenance.

  • Recurring slow drains in prep sinks or dish areas.
  • Persistent kitchen drain odor during or after busy shifts.
  • Frequent backups that return after temporary fixes.
  • More emergency calls between scheduled pumping visits.

If backups are recurring, pair grease trap cleaning with commercial hydro jetting to clear downstream buildup.

Grease trap vs interceptor

Smaller indoor systems are often called grease traps, while larger exterior systems are commonly referred to as interceptors. Both are built to capture FOG before it reaches sewer lines.

If you are unsure which system applies to your site, compare options in our grease trap vs interceptor guide, then request interceptor pumping service for your kitchen profile.

Why cleaning schedules matter

Consistent scheduling helps reduce emergency downtime, protects kitchen throughput, and keeps service records organized for internal operations.

Teams managing multiple vendors can simplify planning by coordinating through restaurant waste services with aligned maintenance windows.

When to request service

Request service when you are onboarding a new kitchen, seeing repeat drain issues, or adjusting maintenance frequency after volume changes.

For active issues, request grease trap cleaning or interceptor pumping with your site details.

What information to provide for a quote

To get a faster quote, prepare:

  • Business name and service address.
  • Kitchen type and operating volume.
  • Current system type (trap or interceptor) and known size.
  • Service history, current issue, and preferred schedule window.

New construction and kitchen renovations

Any new construction permit for a commercial kitchen automatically triggers the grease interceptor requirement. If you are renovating an existing space and the work touches plumbing, the permit review process will typically require you to bring the interceptor up to current code sizing standards — even if the original kitchen had a small under-sink trap that was grandfathered in.

Sizing matters. LACDPH and the local sanitation district use a formula based on your kitchen's fixture units, cooking equipment, and estimated dishwasher throughput to determine the minimum interceptor capacity. Undersized interceptors do not pass inspection and will not protect you from enforcement.

Need grease trap cleaning or interceptor pumping in Los Angeles?

Request service from LA Restaurant Services.

Request Service