The Maricopa County Board of Supervisors has not adopted a climate emergency declaration or countywide Climate Action Plan. Climate work happens through the Heat Relief Network, MCAQD ozone planning, and city-level CAPs in Phoenix, Tempe, and Mesa rather than a county mandate.
Unlike many California counties, Maricopa County has not declared a climate emergency or adopted a binding Climate Action Plan with greenhouse gas reduction targets. The Board of Supervisors instead funds adaptation programs administered by Maricopa County Department of Public Health and Human Services Department: the Heat Relief Network coordinates over two hundred cooling and hydration stations each summer, MCAQD enforces federal ozone and PM10 SIP rules, and the Flood Control District manages climate-driven storm risk. Phoenix adopted a 2021 Climate Action Plan, Tempe declared a climate emergency in 2019, and Mesa published a Sustainability Plan in 2022, but unincorporated residents are not bound by any countywide GHG ordinance.
There is no countywide climate emergency ordinance in Maricopa County, so no specific violations or penalties exist. City CAPs apply only inside the adopting municipality; unincorporated parcels remain governed by state and federal air rules.
Tempe, AZ
Tempe regulates industrial noise through Chapter 20 (Noise) of the City Code and the Zoning and Development Code. Industrial uses must not generate noise exc...
Tempe, AZ
Tempe addresses barking dogs under both the noise ordinance (Chapter 20) and animal control regulations. Dogs that bark persistently and disturb neighbors ca...
Tempe, AZ
Tempe requires vehicles to park on approved hard surfaces such as concrete or asphalt driveways. Parking on dirt, gravel, or landscaped areas is prohibited. ...
Tempe, AZ
Tempe generally does not require a building permit for standard residential fences up to 6 feet in height. Fences exceeding 6 feet, masonry walls, and fences...
Tempe, AZ
Tempe's Zoning and Development Code regulates fence materials in residential zones. Common permitted materials include block, stucco, wrought iron, wood, vin...
Tempe, AZ
Tempe's zoning code limits residential fence heights to 6 feet in side and rear yards and 3 feet in front yards. Corner lots may have additional visibility t...
Side-by-side rule comparisons with other cities in Maricopa County.
See how other cities in Maricopa County handle climate emergency mobilization.
See how Tempe's climate emergency mobilization rules stack up against other locations.
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