In San Diego County, restaurants, cafés, bars and markets are inspected by the Food Program of the Department of Environmental Health and Quality, known as DEHQ. Rodent evidence counts as a major violation. The county's rodent guidance for food facilities says that if staff find evidence of rodents during an inspection, the facility will be ordered closed until corrective steps are taken and a follow-up inspection confirms compliance.
This guide covers the state code sections behind that rule, what inspectors look for, the county's steps to reopen and the records to keep.
The code sections behind the rule
California's retail food rules are in the California Retail Food Code, part of the Health and Safety Code. The county's page on the vermin major violation cites four sections:
- Section 114259: a food facility must prevent the entry and harborage of animals, birds and vermin
- Section 114259.1: the premises must be kept clean and free of vermin
- Section 114259.4: food employees may not care for or handle animals or pets
- Section 114259.5: live animals are not allowed in a food facility, except as specified
The county says major violations tied to CDC risk factors require immediate corrective action, a suitable alternative, or closure of the affected areas until the facility complies. It gives "the presence of active infestation by rodents or vectors that are disease carriers" as an example of a major vermin violation, and says such violations warrant immediate closure.
What inspectors look for
The county's rodent guidance lists the signs of infestation:
- Droppings
- Nesting material
- Grease or rub marks along walls and equipment
- Live or dead rodents
The guidance notes that rodents spread disease through feces, urine and saliva, and through fleas, ticks and mites on their fur. Inspectors check prep areas, dish areas, dry storage, under and behind equipment, corners and cabinet interiors, which are the same places the county tells operators to check with a flashlight.
If you find rodents yourself
The county's guidance does not wait for an inspector. If the operator finds rodent evidence, the facility must stop food service immediately and stay closed until the infestation is removed. The steps it lists:
- Contract with a certified pest control operator licensed by the State of California
- Have the pest operator identify the rodent, find entry points and nests, treat the facility and document the work
- Clean up urine, droppings, nests, dead rodents and rub marks (see droppings cleanup for the wet method)
- Throw out gnawed or possibly contaminated food, and items that cannot be sanitized such as disposable tableware
- Wash and sanitize food-contact and non-food-contact surfaces
- Remove clutter and unused equipment, and seal gaps in walls, ceilings, shelving and worn surfaces
- Do a full self-inspection with a flashlight
The county says not to request a re-inspection until every step is done. Repeat inspections bring additional re-inspection fees. If evidence is found again on re-inspection, the facility stays closed and the steps start over.
Pest control records
The county's guidance says inspectors will ask to see pest control receipts, so keep them where a manager can find them. It also recommends:
- A monthly service contract with a certified pest control operator, with more frequent treatment as needed
- Talking with the pest control company after each visit and reviewing their receipts and notes
A binder or folder with the service agreement, the trap map, each visit report and any repair invoices answers most inspector questions in a minute. See restaurant rodent control for what a monthly program should include.
Prevention the county asks for
The county's prevention list for food facilities:
- Inspect deliveries and refuse products with rodent damage or contamination
- Clean regularly to remove food residue, debris and water
- Store food in rodent-resistant containers
- Repair the facility to remove harborage areas
- Keep doors closed at all times
- Store food waste and rubbish in leak-proof, rodent-proof containers
- Inspect the facility routinely
- Train staff to spot rodent evidence and report it to management
In San Diego, open back doors on warm nights and patio planters full of palms are two of the hardest habits to break. Both give roof rats a way in.
Grade cards and closures
San Diego County requires restaurants to post an A, B or C card in the front window. According to the county's Food Program FAQ, an A means a score of 90 to 100 percent and satisfactory compliance with state law, a B means 80 to 89 percent, and a C means 79 percent or less, which is a failing grade.
When a facility is closed, a CLOSED sign replaces the grade card, and the county says the facility must stay closed until the department gives written authorization to reopen. The public can look up inspection results through the county's SD Food Info inspection search.
Rodenticide rules around food businesses
California has restricted anticoagulant rodenticides in steps. AB 1788 prohibited most uses of second-generation anticoagulants starting January 1, 2021. AB 1322 made most uses of diphacinone prohibited as of January 1, 2024, and the Department of Pesticide Regulation's enforcement letter lists use around restaurants among the prohibited uses. AB 2552 took effect January 1, 2025, and DPR's letter ENF 24-20 says most uses of chlorophacinone and warfarin are now prohibited as well. That letter's list of exempt sites includes food warehouses, food manufacturing or processing plants, factories, breweries and wineries. Restaurants are not on it.
For most restaurants that means sealing, sanitation and traps are the main tools. Ask your provider what products, if any, will be used outside, and keep the pesticide use notices they give you. See how to verify a pest control license.
A simple weekly self-check
The county's guidance asks operators to inspect routinely. A short weekly walk-through with a flashlight catches most problems early:
- Under and behind the cook line, fryers, ice machine and dish machine
- Dry storage shelves, especially the bottom shelf and the wall behind it
- Walk-in coolers along the door gasket and floor edge
- Back door: sweep, threshold, self-closer and any gap at the frame
- Trash and grease area: lids closed, no spills, no stacked cardboard
- Ceiling tiles that are stained, shifted or missing
- Patio planters and landscaping next to the building
Write down what you find and share it with your pest control company on their next visit. That record also shows an inspector that the facility is watching for problems between service visits.
If a customer or employee reports a rodent
Treat any report as real until you have checked. Ask where and when they saw it, then walk that area with a flashlight right away. Look for droppings, rub marks and gnawing. If you find evidence, the county's guidance says food service must stop until the infestation is removed. Call your pest control company, start the cleanup steps above and keep notes of what you found and what you did. If you find nothing, write that down too, and ask your provider to check the area on the next visit.
Sources
- County of San Diego DEHQ, Major violation: vermin
- County of San Diego DEHQ, Rodent guidance for retail food facilities (Rev. 08/12/2024)
- County of San Diego DEHQ, Food Program FAQs
- California Department of Pesticide Regulation, ENF 20-20 on AB 1788 (second-generation anticoagulants)
- California Department of Pesticide Regulation, ENF 23-19 on AB 1322 (diphacinone)
- California Department of Pesticide Regulation, ENF 24-20 on AB 2552 (chlorophacinone and warfarin)