Los Angeles vs Houston
Side-by-side FOG compliance comparison between Los Angeles, CA and Houston, TX.
| Requirement | Los Angeles, CA | Houston, TX |
|---|---|---|
| Plumbing Code | UPC (California Plumbing Code based on Uniform Plumbing Code) | IPC (Texas adopts IPC statewide; Houston amends locally) |
| 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 | Minimum 750 gallons for gravity grease interceptors for food service establishments; sizing based on fixture count and flow rate per Houston Plumbing Code; hydromechanical interceptors minimum 20 GPM |
| Pumping Frequency | Minimum every 90 days; more frequently if 25% grease cap rule is triggered | Every 90 days minimum or when 25% full |
| 25% Rule | Yes | Yes |
| Permit Required | Required | Required |
| Permit Fee | Industrial Waste Permit required; fees vary by facility type, typically $200-$800 annually | Grease trap permit/registration required; fees approximately $100-$250 depending on establishment size |
| 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 | $2,000 per violation per day under Houston Code of Ordinances Chapter 47; repeat violations up to $4,000/day |
| Inspections | LA Sanitation conducts periodic inspections; high-risk FSEs inspected annually; routine inspections at minimum every 2-3 years | Houston Health Department and Public Works conduct inspections; typically annually or upon complaint |
| Record Keeping | Yes | Yes |
| Authority | LA Bureau of Sanitation, Industrial Waste Management Division | Houston Public Works and Engineering Department; Houston Health Department (grease transporter licensing) |
| Establishments | 23,693 | 10,038 |
Key Differences
As cities in different states, Los Angeles (CA) and Houston (TX) operate under distinct regulatory frameworks. Here are the most important differences restaurant operators should know:
- Los Angeles follows the Uniform Plumbing Code (UPC), while Houston 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 Houston requires "Every 90 days minimum or when 25% full".
- 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 $2,000 per violation per day under Houston Code of Ordinances Chapter 47; repeat violations up to $4,000/day in Houston.
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 (Texas adopts IPC statewide; Houston amends locally)) 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 Houston?
Los Angeles follows the Uniform Plumbing Code (UPC), while Houston 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 Houston requires "Every 90 days minimum or when 25% full".
Which city has stricter grease trap enforcement, Los Angeles or Houston?
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. Houston fines: $2,000 per violation per day under Houston Code of Ordinances Chapter 47; repeat violations up to $4,000/day. Always verify with local authorities.
How do pumping schedules differ between Los Angeles and Houston?
Los Angeles: Minimum every 90 days; more frequently if 25% grease cap rule is triggered. Houston: Every 90 days minimum or when 25% full.
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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