Phoenix City Code Chapter 33 requires every property owner to keep premises free of rodent harborage and active infestations. Maricopa County Vector Control investigates outdoor complaints, and Arizona allows rodenticide use within EPA label restrictions.
Phoenix tackles rats and roof rats on two tracks. City Code Chapter 33 (Public Nuisance and Property Maintenance) makes owners and occupants responsible for eliminating food sources, harborage, and active rodent populations on residential and commercial property. Failure to abate after written notice triggers Neighborhood Services Department code-enforcement orders, civil penalties, and potential lien for abatement costs. The Maricopa County Vector Control Division investigates complaints, conducts neighborhood surveys, and runs the roof-rat education program for the long-running Arcadia and central Phoenix outbreaks. Arizona has not banned second-generation anticoagulants for consumer use, so homeowners may still buy snap traps, bait stations, and EPA-registered rodenticides at hardware stores.
Failure to comply with a Chapter 33 abatement notice is a civil violation with fines up to $2,500 per day plus reinspection and abatement costs liened against the property under Phoenix City Code §39-7.
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