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Riverside, CA Public Health Rules: Rodent Control (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Duty trigger
As soon as infestation is discovered
Inspection hours
9:00 a.m.–5:00 p.m. for dwellings
Abatement deadline
10 days after notice to begin
Appeal window
10 days to appeal to City Council
Cost threshold
City bills owner if over $15
Lien trigger
45 days unpaid after billing
Interference penalty
Misdemeanor under Section 6.22.150

Summary

Riverside property owners must exterminate rodent infestations the moment they discover them under RMC Chapter 6.22. The City inspects suspect properties, can issue a ten-day notice to abate through the Code Enforcement Division, and if the owner ignores it, the City does the extermination itself and bills the cost as a lien.

Every person possessing any place that is infested with rodents, as soon as their presence comes to his knowledge, shall at once proceed and continue in good faith to endeavor to exterminate and destroy the rodents, by poisoning, trapping, and in other appropriate means. ... The notice shall direct that the owner shall, within a period of ten days, commence to proceed and to continue to endeavor to exterminate and destroy the rodents, as required in this chapter. ... In the event the owner or person in charge or possession of the property affected by such notice, fails, neglects or refuses to proceed and to continue to endeavor to exterminate and destroy the rodents, within the time specified in Section 6.22.060, the City shall at once cause the rodents to be exterminated and destroyed.

Source: Riverside Code Enforcement DivisionView official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 33).

Full Breakdown

RMC Section 6.22.010 requires every person possessing a rodent-infested place to "at once proceed and continue in good faith to endeavor to exterminate and destroy the rodents, by poisoning, trapping, and in other appropriate means." The City may inspect any property to check compliance, but Section 6.22.020 limits inspection of an occupied dwelling, hotel, or rooming house to between 9:00 a.m. and 5:00 p.m. When infestation is found, the Code Enforcement Division issues a written notice to abate under Section 6.22.030, giving the owner ten days to begin extermination; the notice is served personally or by registered mail plus a ten-day posting on the property (Section 6.22.040).

An owner who disputes the finding has ten days from service to file a written appeal with the City Clerk for a City Council hearing (Section 6.22.050); if no appeal is filed, the infestation is conclusively established. Once the compliance deadline in Section 6.22.060 passes without action, Section 6.22.070 lets the City "at once cause the rodents to be exterminated and destroyed." The City then bills the owner for costs exceeding $15.00; unpaid bills 45 days after billing become delinquent and, per Section 6.22.080, form a lien on the property, confirmed through a City Clerk report, a City Council hearing under Section 6.22.100, and filing with the County Auditor for collection on the property tax roll (Sections 6.22.090, 6.22.110, 6.22.130). Section 6.22.160 also lets the City order a building rodent-proofed, in whole or in part, when it constitutes a harborage.

Violations & Fines

Chapter 6.22 carries no dedicated fine for failing to exterminate; the City's remedy is to abate the infestation itself and recover costs as a property lien under Section 6.22.080. Separately, obstructing, hindering, or interfering with a City officer entering a property or performing abatement work under this chapter is a misdemeanor under Section 6.22.150, and unpaid lien assessments are collected the same way as delinquent municipal taxes, subject to the same foreclosure and sale procedures.

Frequently Asked Questions

Who enforces Riverside's rodent control ordinance?
The Code Enforcement Division administers Chapter 6.22 and may issue a written notice to abate whenever it finds rodent infestation on a property. Inspectors can enter dwellings, hotels, or rooming houses only between 9:00 a.m. and 5:00 p.m., and the City Council hears any appeal the owner files within ten days of the notice.
What happens if I don't exterminate rodents after getting a notice?
If the owner fails, neglects, or refuses to act within the time set in the notice, Section 6.22.070 lets the City exterminate the rodents itself. The City then bills the owner for any cost over $15, and unpaid bills more than 45 days old become a lien recorded against the property under Section 6.22.080.
Can I appeal a rodent infestation notice?
Yes. Within ten days of the notice being posted, mailed, or personally served, the owner may file a written appeal with the City Clerk under Section 6.22.050. The City Council holds a hearing and its decision is final; if no appeal is filed, the infestation described in the notice is conclusively established.

Sources & Official References

Other rules in Riverside

All Riverside rules

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