Grease Trap Requirements
Baton Rouge, LA

FOG Compliance in Baton Rouge, LA

Food service establishments in Baton Rouge operate under a combination of federal EPA pretreatment standards, Louisiana state plumbing code, and city-level FOG ordinances. Together these rules determine how grease traps must be sized, how often they must be pumped, and what happens when a restaurant falls out of compliance. The city has approximately 1,065 food service establishments — every one of them subject to the rules summarized below.

Pumping frequency is the compliance rule restaurant owners interact with most often. In Baton Rouge, the rule is: Every 30-90 days. This places it among the strictest tier of US jurisdictions, alongside most of Houston-area and high-volume Los Angeles County restaurants. The city follows the International Plumbing Code (IPC) for trap sizing and installation. Under Section 1003.3.4, which sizes traps by drainage fixture unit counts, grease interceptors installed in Baton Rouge must meet minimum capacity thresholds based on the fixtures connected to them — 3-compartment sinks, dishwashers, pre-rinse stations, wok stoves, and floor drains on the cook line. The local minimum trap size is: Per Louisiana State Plumbing Code grease trap sizing chart; sized by fixture capacity and flow.

Baton Rouge requires a dedicated FOG permit for any food service establishment generating fats, oils, and grease. The annual permit fee is Per city-parish fee schedule; liquid waste hauler permit required. The permit is separate from, and in addition to, the plumbing permit required at installation. Violations carry maximum penalties of $500 for first violation; escalating for repeat offenses; may include business license implications , in line with typical US municipal penalties. Fines typically escalate with repeat violations, and severe discharges that cause sanitary sewer overflows can trigger federal Clean Water Act penalties layered on top of local fines.

Baton Rouge enforces the 25 percent rule: grease traps must be pumped before the combined FOG and settled solids reach 25 percent of the trap's total liquid depth. Inspectors measure the depth with a sludge judge or dipstick, typically at surprise visits. Exceeding the threshold at inspection triggers a notice of violation and mandatory emergency pump-out, regardless of the scheduled pumping cycle. Periodic inspections by Department of Environmental Services. Establishments must maintain pumping logs, hauler manifests, and inspection reports on-site — missing records is itself a violation in most enforcement actions. Enforcement authority rests with the Baton Rouge Department of Environmental Services, which handles permit issuance, inspections, and hauler licensing.

For a deeper explanation of the rules this city enforces, read our guides on how grease traps work and the 25/50 pumping rule.