Phoenix vs Las Vegas
Side-by-side FOG compliance comparison between Phoenix, AZ and Las Vegas, NV.
| Requirement | Phoenix, AZ | Las Vegas, NV |
|---|---|---|
| Plumbing Code | UPC (Arizona adopts UPC statewide) | UPC |
| Min. Trap Size | Gravity grease interceptors minimum 750 gallons for food service establishments; sizing per Phoenix City Code and Arizona Plumbing Code based on fixture count and flow rate; point-of-use interceptors minimum 20 GPM | 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; more frequently if grease accumulation exceeds 25% of capacity | 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 | Industrial pretreatment/FOG permit required; registration fees typically $50-$150 annually | Health permit for food establishments includes FOG compliance; separate grease hauler permits also required |
| Max Fine | $2,500 per violation per day under Phoenix City Code; administrative penalties may also apply | $1,000 per violation per day under Clark County code; escalating penalties for repeat violations |
| Inspections | City of Phoenix Environmental Services Division inspects FSEs; frequency varies, typically annually for permitted facilities | Annual inspections as part of health permit and sewer discharge compliance |
| Record Keeping | Yes | Yes |
| Authority | City of Phoenix Water Services Department, Environmental Services Division | City of Las Vegas Public Works Department and Clark County Water Reclamation District; Southern Nevada Health District (SNHD) for food establishment inspections |
| Establishments | 8,992 | 5,457 |
Key Differences
As cities in different states, Phoenix (AZ) and Las Vegas (NV) operate under distinct regulatory frameworks. Here are the most important differences restaurant operators should know:
- Phoenix 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: Phoenix requires "Every 90 days minimum", 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: Phoenix penalties can reach $2,500 per violation per day under Phoenix City Code; administrative penalties may also apply, 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 (UPC (Arizona adopts UPC statewide) 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 Phoenix and Las Vegas?
Phoenix 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: Phoenix requires "Every 90 days minimum", whereas Las Vegas requires "Every 90 days minimum".
Which city has stricter grease trap enforcement, Phoenix or Las Vegas?
Enforcement varies: both cities have similar permit requirements. Phoenix fines: $2,500 per violation per day under Phoenix City Code; administrative penalties may also apply. 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 Phoenix and Las Vegas?
Phoenix: Every 90 days minimum; more frequently if grease accumulation exceeds 25% of capacity. 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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