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Stanislaus County, CA Public Health Rules: Rodent Control (2026)

Light Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Lead agency
County Dept. of Agriculture / agricultural commissioner
Buyer requirement
Current pesticide permit or operator ID
Minimum bait quantity
25 pounds per sale
Residential use
Bait not intended for residential use
Price review
Re-evaluated every 2 years, effective July 1

Summary

Stanislaus County's agricultural commissioner runs the county's vertebrate pest control program, selling rodent bait only to producers who hold a current pesticide permit or operator ID. The bait comes in twenty-five-pound minimum quantities, isn't intended for residential use, and buyers must sign a liability release before the commissioner will sell it to them.

City-specific rules exist: Modesto has its own rodent control rules that differ from Stanislaus County's county-level regulations. If you live in Modesto, check the city-specific page instead.

Subject to applicable state laws, the agricultural commissioner is authorized to: A. Sell vertebrate pest control materials to individuals that produce an agricultural commodity in Stanislaus County and possess a current pesticide permit or operator identification number from the county department of agriculture. B. Require individuals who purchase rodent bait to sign a statement releasing the county from liability that might ensue as the result of such operations. The bait will only be available in a minimum quantity of twenty-five pounds and is not intended for residential use.

Full Breakdown

010 says cause millions of dollars damage to crops annually and carry diseases that are transmissible and injurious to humans. The commissioner's authority comes from state law: Food and Agricultural Code Section 5101 makes the commissioner an enforcing officer for pest laws, Section 6022 requires cooperation in suppressing field rodents and rodent-borne disease vectors, and Section 6024 lets the commissioner sell bait as part of suppressing or repelling those pests. 040 spells out how the county actually runs the program: the commissioner may sell vertebrate pest control materials only to individuals who produce an agricultural commodity in the county and hold a current pesticide permit or operator identification number, must require purchasers to sign a liability release before selling rodent bait, and only sells it in twenty-five-pound minimum lots that are not intended for residential use.

The commissioner also collects a per-pound surcharge set by the state secretary of food and agriculture and forwards it to fund the state's vertebrate pest program. 050 requires the bait's sale price to be reevaluated every two years, adjusted if necessary to stay at or above total cost, effective each July 1st.

Violations & Fines

This chapter is a county-run sales and permitting program, not a mandate that every property owner control rodents: there's no fine here for failing to bait your own property. The exposure runs the other way: a producer who buys rodent bait without a current pesticide permit or operator ID, or who won't sign the required liability release, can be refused sale by the agricultural commissioner, and using bait outside the permitted agricultural purpose exceeds what the county authorizes.

Frequently Asked Questions

Can I buy county rodent bait for my house?
No. Section 9.46.040 limits sales to individuals who produce an agricultural commodity in Stanislaus County and hold a current pesticide permit or operator identification number, and the bait is sold only in twenty-five-pound minimum quantities that the code expressly states are not intended for residential use.
What do I have to sign before the commissioner sells me rodent bait?
Section 9.46.040(B) requires purchasers to sign a statement releasing the county from liability that might result from using the bait before the agricultural commissioner will complete the sale, in addition to holding the required pesticide permit or operator ID.
Why does the county sell rodent bait at all?
Section 9.46.010 explains that vertebrate pests like ground squirrels, gophers and meadow mice cause millions of dollars in crop damage annually and can carry diseases transmissible to humans, so the Department of Agriculture is designated the lead county agency for cooperating with state and local partners to suppress them.

Sources & Official References

Other rules in Stanislaus County

All Stanislaus County rules

California rules heatmap·Compare Stanislaus County to another location·View the California public health rules overview

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