Chicago vs Las Vegas
Side-by-side FOG compliance comparison between Chicago, IL and Las Vegas, NV.
| Requirement | Chicago, IL | Las Vegas, NV |
|---|---|---|
| Plumbing Code | IPC (Chicago Building Code based on International Plumbing Code with local amendments) | UPC |
| Min. Trap Size | 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 | 750 gallons minimum for gravity grease interceptors; hydromechanical interceptors sized per fixture count and flow rate per UPC tables (minimum 20 GPM) |
| Pumping Frequency | Every 90 days minimum or when 25% full (whichever comes first) | Every 90 days minimum; more frequently if grease and solids exceed 25% of interceptor capacity |
| 25% Rule | Yes | Yes |
| Permit Required | Required | Required |
| Permit Fee | Sewer discharge permit required; FOG registration included with building/sewer permits. Permit fees vary based on discharge volume | Health permit for food establishments includes FOG compliance; separate grease hauler permits also required |
| Max Fine | $1,000 per day per violation under Chicago Municipal Code; repeat offenders face escalating fines | $1,000 per violation per day under Clark County code; escalating penalties for repeat violations |
| Inspections | Chicago Department of Water Management conducts inspections; frequency based on compliance history, typically annually for FSEs | Annual inspections as part of health permit and sewer discharge compliance |
| Record Keeping | Yes | Yes |
| Authority | Chicago Department of Water Management | City of Las Vegas Public Works Department and Clark County Water Reclamation District; Southern Nevada Health District (SNHD) for food establishment inspections |
| Establishments | 12,246 | 5,457 |
Key Differences
As cities in different states, Chicago (IL) and Las Vegas (NV) operate under distinct regulatory frameworks. Here are the most important differences restaurant operators should know:
- Chicago follows the Uniform Plumbing Code (UPC), while Las Vegas uses the Uniform Plumbing Code (UPC). This affects trap sizing calculations and installation standards.
- Pumping schedules differ: Chicago requires "Every 90 days minimum or when 25% full (whichever comes first)", whereas Las Vegas requires "Every 90 days minimum".
- 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: Chicago penalties can reach $1,000 per day per violation under Chicago Municipal Code; repeat offenders face escalating fines, compared to $1,000 per violation per day under Clark County code; escalating penalties for repeat violations in Las Vegas.
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 (IPC (Chicago Building Code based on International Plumbing Code with local amendments) vs UPC) 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 Chicago and Las Vegas?
Chicago follows the Uniform Plumbing Code (UPC), while Las Vegas uses the Uniform Plumbing Code (UPC). This affects trap sizing calculations and installation standards. Pumping schedules differ: Chicago requires "Every 90 days minimum or when 25% full (whichever comes first)", whereas Las Vegas requires "Every 90 days minimum".
Which city has stricter grease trap enforcement, Chicago or Las Vegas?
Enforcement varies: both cities have similar permit requirements. Chicago fines: $1,000 per day per violation under Chicago Municipal Code; repeat offenders face escalating fines. Las Vegas fines: $1,000 per violation per day under Clark County code; escalating penalties for repeat violations. Always verify with local authorities.
How do pumping schedules differ between Chicago and Las Vegas?
Chicago: Every 90 days minimum or when 25% full (whichever comes first). Las Vegas: Every 90 days minimum; more frequently if grease and solids exceed 25% of interceptor capacity.
Regulations change frequently. Always verify current requirements with your local wastewater authority or plumbing inspector before making compliance decisions. Last updated: March 2026.
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