What are the grease trap requirements in Montgomery, AL?

Food service establishments in Montgomery must install and maintain grease traps or interceptors per local FOG ordinances. The city follows the International Plumbing Code (IPC).

Do I need a grease trap permit in Montgomery?

Yes, a FOG permit is required in Montgomery. Fee: Contact MWWSSB; plumbing permit fees per City of Montgomery schedule.

What size grease trap do I need for my restaurant in Montgomery?

Grease trap sizing depends on your establishment's flow rate, number of fixtures, and local code requirements. 300 gallons minimum (MWWSSB requirement). Use our free sizing calculator for a recommendation.

Grease Trap Requirements
Montgomery, AL

FOG compliance regulations for food service establishments in Montgomery, Alabama.

Per 25% rule and MWWSSB requir

Pumping Freq.

Required

Permit

Yes

25% Rule

IPC

Code Base

Pumping Requirements

Frequency Per 25% rule and MWWSSB requirements; frequency based on establishment volume

25% Rule Applies

Permits & Enforcement

Permit Required Required

Permit Fee Contact MWWSSB; plumbing permit fees per City of Montgomery schedule

Max Fine Per MWWSSB Pretreatment Policy; contact Environmental Services at (334) 206-1726

Complete FOG Regulations

Minimum Trap Size	300 gallons minimum (MWWSSB requirement)
Pumping Frequency	Per 25% rule and MWWSSB requirements; frequency based on establishment volume
25% Rule	Yes — trap must be pumped when grease and solids reach 25% of capacity
Permit Required	Yes
Permit Fee	Contact MWWSSB; plumbing permit fees per City of Montgomery schedule
Maximum Fine	Per MWWSSB Pretreatment Policy; contact Environmental Services at (334) 206-1726
Inspections	Regular inspections by MWWSSB Environmental Services Department
Record Keeping	Required — maintain pumping logs and manifests on-site
Plumbing Code	International Plumbing Code (IPC)
Ordinance Ref.	MWWSSB Pretreatment Policy; Alabama Plumbing Code (IPC-based) Chapter 10
Authority	Montgomery Water Works & Sanitary Sewer Board (MWWSSB)

Additional Notes

Outdoor gravity grease interceptor with separate sampling well required. All kitchen fixtures associated with food prep must connect to interceptor. Minimum 300-gallon capacity. Hydro-mechanical grease traps and grease drums not accepted as variance. Sizing by licensed AL engineer or plumber.

Regulations change frequently. Always verify current requirements with your local wastewater authority or plumbing inspector before making compliance decisions. Last updated: March 2026.