Los Angeles vs Chicago
Side-by-side FOG compliance comparison between Los Angeles, CA and Chicago, IL.
| Requirement | Los Angeles, CA | Chicago, IL |
|---|---|---|
| Plumbing Code | UPC (California Plumbing Code based on Uniform Plumbing Code) | IPC (Chicago Building Code based on International Plumbing Code with local amendments) |
| Min. Trap Size | Gravity grease interceptors minimum 750 gallons for food service establishments per LA Municipal Code; hydromechanical grease interceptors minimum 20 GPM (under-sink units); sizing per California Plumbing Code Section 1014.2 based on fixture unit count and flow rate | Grease interceptors sized per Chicago Building Code Section 18-29-1003.3.6 table; minimum 750 gallons for gravity interceptors for restaurants; hydromechanical grease interceptors rated at minimum 20 GPM for smaller facilities |
| Pumping Frequency | Minimum every 90 days; more frequently if 25% grease cap rule is triggered | Every 90 days minimum or when 25% full (whichever comes first) |
| 25% Rule | Yes | Yes |
| Permit Required | Required | Required |
| Permit Fee | Industrial Waste Permit required; fees vary by facility type, typically $200-$800 annually | Sewer discharge permit required; FOG registration included with building/sewer permits. Permit fees vary based on discharge volume |
| Max Fine | $25,000 per day per violation under LAMC Section 64.30; criminal penalties up to $1,000/day and/or imprisonment for willful violations | $1,000 per day per violation under Chicago Municipal Code; repeat offenders face escalating fines |
| Inspections | LA Sanitation conducts periodic inspections; high-risk FSEs inspected annually; routine inspections at minimum every 2-3 years | Chicago Department of Water Management conducts inspections; frequency based on compliance history, typically annually for FSEs |
| Record Keeping | Yes | Yes |
| Authority | LA Bureau of Sanitation, Industrial Waste Management Division | Chicago Department of Water Management |
| Establishments | 23,693 | 12,246 |
Key Differences
As cities in different states, Los Angeles (CA) and Chicago (IL) operate under distinct regulatory frameworks. Here are the most important differences restaurant operators should know:
- Los Angeles follows the Uniform Plumbing Code (UPC), while Chicago uses the Uniform Plumbing Code (UPC). This affects trap sizing calculations and installation standards.
- Pumping schedules differ: Los Angeles requires "Minimum every 90 days", whereas Chicago requires "Every 90 days minimum or when 25% full (whichever comes first)".
- Both cities enforce the 25% rule, requiring grease traps to be pumped when grease and solids reach 25% of the trap's capacity.
- Fines differ: Los Angeles penalties can reach $25,000 per day per violation under LAMC Section 64.30; criminal penalties up to $1,000/day and/or imprisonment for willful violations, compared to $1,000 per day per violation under Chicago Municipal Code; repeat offenders face escalating fines in Chicago.
What This Means for Restaurant Operators
If you operate food service establishments in either city, understanding these regulatory differences is critical for compliance. Permit requirements vary, so check with each city's wastewater authority before opening a new location. Different plumbing codes (UPC (California Plumbing Code based on Uniform Plumbing Code) vs IPC (Chicago Building Code based on International Plumbing Code with local amendments)) mean trap sizing calculations may produce different results for the same kitchen setup. Always verify current requirements directly with your local wastewater authority or plumbing inspector.
Frequently Asked Questions
How do grease trap requirements compare between Los Angeles and Chicago?
Los Angeles follows the Uniform Plumbing Code (UPC), while Chicago uses the Uniform Plumbing Code (UPC). This affects trap sizing calculations and installation standards. Pumping schedules differ: Los Angeles requires "Minimum every 90 days", whereas Chicago requires "Every 90 days minimum or when 25% full (whichever comes first)".
Which city has stricter grease trap enforcement, Los Angeles or Chicago?
Enforcement varies: both cities have similar permit requirements. Los Angeles fines: $25,000 per day per violation under LAMC Section 64.30; criminal penalties up to $1,000/day and/or imprisonment for willful violations. Chicago fines: $1,000 per day per violation under Chicago Municipal Code; repeat offenders face escalating fines. Always verify with local authorities.
How do pumping schedules differ between Los Angeles and Chicago?
Los Angeles: Minimum every 90 days; more frequently if 25% grease cap rule is triggered. Chicago: Every 90 days minimum or when 25% full (whichever comes first).
Regulations change frequently. Always verify current requirements with your local wastewater authority or plumbing inspector before making compliance decisions. Last updated: March 2026.
Operating in Both Cities?
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