Adopted Regulations

Adopted Regulations Index

The Adopted Regulations Index provides a list of existing rules and/or regulations that departments are required to administer. These requirements address various matters of public interest such as health, safety and environmental effects. These documents are provided in an effort to promote a transparent and open process to all interested parties with regard to regulatory reform.

Adopted	Regulation Title	Description
9/16/2022	Local Additions and Addenda (PDF)	Text Amendment to the Maricopa County Local Additions & Addenda to adopt and amend the following construction safety codes: 2018 International Building Code, 2018 International Residential Code, 2018 International Plumbing Code, 2018 International Mechanical Code, 2018 International Fuel Gas Code, 2018 International Green Code (voluntary), 2018 International Energy Conservation Code (voluntary), 2018 International Existing Building Code, and 2017 National Electric Code.  These codes with amendments become effective 30 days after BOS approval with a grace period through 30 December 2022 before mandating new codes. It was approved by the BOS on 8/17/22 and took effect 30 days later.
3/11/2022	Zoning (PDF)	Text amendment TA2020001 to the Maricopa County Zoning Ordinance (MCZO) related to Group Homes. It was approved by the BOS on 2/9/22 and took effect 30 days later.
11/17/2021	Zoning (PDF)	Text amendment TA2018001 to the Maricopa County Zoning Ordinance (MCZO) related to Off-Site Advertising Signs (Billboards). It was approved by the BOS on 11/17/21 and took effect 30 days later.
3/10/2021	Zoning (PDF)	Text amendment to the Maricopa County Zoning Ordinance (MCZO) to incorporate definitions, use regulations and development standards related to the adult use of recreational marijuana, TA2020002 is to be adopted as an emergency measure with 24-hour vesting and effect.
10/7/2020	Zoning (PDF)	TA2019001 - Wireless Communication Facilities (WCF) A text amendment to the Maricopa County Zoning Ordinance, Sections 1202 & 1303, to streamline WCF permitting and to bring the ordinance into alignment with federal rules It deleted requirement for a Conditional Use Permit for a WCF consistent with ordinance requirements and added language regarding qualifying eligible facilities for colocation. This is a lessening of regulatory burden. It was approved by the BOS on 10/7/20 and took effect 30 days later.
10/7/2020	Zoning (PDF)	TA2019002 - Variance Timeframe - A text amendment to the Maricopa County Zoning Ordinance, Section 303, deleting the mandate for construction permitting related to variances to be initiated within 120 days. The idea being that warrant for a parcel to receive a condition will almost always be a condition that exists in perpetuity and not usually a temporal condition necessitating timely construction. This is a lessening of regulatory burden. It was approved by the BOS on 10/7/20 and took effect 30 days later.
10/7/2020	Zoning (PDF)	TA2019003 - Home Based Business - A text amendment to the Maricopa County Zoning Ordinance, Sections 501 & 601, further liberalizing regulation and fostering home bases businesses. It brings the ordinance in alignment with recent changes to state law allowing non-resident employees at a home-based business. This is a lessening of regulatory burden. It was approved by the BOS on 10/7/20 and took effect 30 days later.
4/26/2017	Zoning (PDF)	TA2016007- Home Occupation - A text amendment to the MCZO, Chapters 2, 5, 6 & 13 regarding Home Occupations. This amendment intended to foster development of home-based businesses with revisions to definitions, use regulations of the Rural and Single-Family Residential zoning district.
4/26/2017	Zoning (PDF)	TA2016005 - Adult Oriented Facilities Definition - A text amendment to the MCZO, to update the definition of Adult Oriented Facilities to reference the Maricopa County Ordinance for Adult Oriented Businesses and Adult Services Providers (P-10).
4/26/2017	Zoning (PDF)	TA2016004 - Home Occupation/Sales, Garage/Yard Definitions - A text amendment to the MCZO, Chapter 2, Section 201, additional language and definitions and deletion of existing language in the definitions section to clarify a ‘Home Occupation, Residential’, a ‘Home Occupation, Cottage Industry’, and ‘Sales, Garage/Yard’.
4/26/2017	Zoning (PDF)	TA2016003- Runway and Landing Strips - A text amendment to the MCZO, clarify ordinance language regarding Article 1111.3, Runway and Landing strips. The Board of Supervisors may waive Runway Protection Zones (RFP) and Obstacle Free Zones (OFZ) when applicable.
4/26/2017	Zoning (PDF)	TA2016002 - C-3 Nightclubs - A text amendment to the MCZO, clarify ordinance language regarding the use of adult oriented facilities within the C-3 zoning district.
4/26/2017	Zoning (PDF)	TA2016001- Group Home/Group Care Facility Definitions - A text amendment to the MCZO, Chapter 2, Section 201 to add language and delete existing language to clarify what constitutes and ‘adjudicated person’, a ‘family’ and to clarify what qualifications are required for ‘Group Care Facilities’ and ‘Group Homes’.
5/4/2016	Zoning (PDF)	TA2015004 - Accessory Recreational Structures - A text amendment to the MCZO, Articles 501.2 & 601.2, accessory recreational structures in the Rural and Single-Family Residential zoning districts. Increased the maximum height of accessory recreational structures and clarification that both tennis courts and other accessory recreational structures are permitted.
6/10/2015	Zoning (PDF)	TA2014001 - Wireless Communication Facilities - A text amendment to the MCZO, Chapter 2, Chapters 12 and 13. The purpose of the amendment was to streamline entitlement process for WCFs. The amendment also eliminated the WCF Use District, promoting co-location an existing vertical structures and fostering moderate height and slim monopole designs that would be permitted by right.
6/10/2015	Zoning (PDF)	TA2015003 - Temporary Use - A text amendment to the MCZO, Chapter 13, Section 1302 regarding Temporary Uses. This amendment was to ensure proper public notification of the revised language of TA2014006.
6/10/2015	Zoning (PDF)	TA2015002 - Restaurants and Cafes - A text amendment to the MCZO, Chapter 8, to permit outdoor dining at restaurants and cafes in the C-1 and C-2 zoning districts.
6/10/2015	Zoning (PDF)	TA2015001 - Amateur Radio Antennas - A text amendment to the MCZO, Chapter 11, to clarify that amateur radio antennas mounted to a building are considered building appurtenances with no limit to the number of structures and to clarify structure placement within both Rural and Single Family Residential zoning districts.
10/8/2014	Zoning (PDF)	TA2014009 - Gates (Zoning) - A text amendment to the MCZO, Chapter 15, Article 1504.5.2, this amendment eliminated the requirement to obtain a zoning clearance for gates within streets and road easements.
10/8/2014	Zoning (PDF)	TA2014008 - Property Maintenance - A text amendment to the MCZO, Chapter 2 and Chapter 11, Article 1116, added a new Article Property Maintenance and definitions. This article and definition were derived from Maricopa County Ordinance No. P-10 (Abatement). Incorporation into the MCZO will provide civil enforcement process and will forego the need for formal abatement proceedings for simple items.
10/8/2014	Zoning (PDF)	TA2014006 - Special Uses / Use Regulations - A text amendment to the MCZO, Chapters 5, 6 ,7, 8, 9 and 13. The purpose of the amendment is to move several special uses to the respective zoning district which they are appropriate due to their permanent nature.
10/8/2014	Zoning (PDF)	TA2014005 - Billboard SUP - A text amendment to the MCZO, Chapter 13 Article 1301.1.41.1. Amendment included clarifying language that a billboard may be relocated by Special Use Permit due to public acquisition of from a parcel located within the perimeter boundary of Maricopa County.
10/8/2014	Zoning (PDF)	TA2014004 - R-5 Use Regulations - A text amendment to the MCZO, Chapter 7 Article 702.2 Use Regulations, included new articles 702.2.5 & 702.5.6 and renumber existing 702.2.5 and 702.2.7. The new articles state that all uses permitted in the C-2 Neighborhood Commercial Zoning District and Mobile Home Parks shall be permitted in the R-5 Multi-Family Residential Zoning District.
10/8/2014	Zoning (PDF)	TA2014003 - C-3 Use Regulations - A text amendment to the MCZO, Chapter 8 Article 803.2 Use Regulations, included new article 803.2.44 and renumber sub-articles. All uses permitted in the R-5 Multi-Family Residential Zoning District are also permitted in the C-1 Neighborhood Commercial Zoning District.
10/8/2014	Zoning (PDF)	TA2014002 - Residential Lot Coverage - A text amendment to the MCZO, Chapters 6 and 7, amendment to increase the Maximum Lot Coverage in all Single-Family Residential and Multi-Family Residential zoning district.
1/14/2009	Addressing Regulations (PDF)	Maricopa County enforces addressing regulations to provide a uniform means of identifying developed property and its improvements for the provision of emergency services, government record keeping, and postal delivery. Primary consideration to the needs of emergency service providers shall always be given by the Address Official when assigning/changing any address.
6/10/2015	Drainage Regulations, Section 1205 of the Zoning Ordinance (PDF)	The Planning and Development department regulates drainage of all land within the unincorporated areas of Maricopa County to promote and protect the health, peace, safety, comfort, convenience and general welfare of county residents. The Drainage Regulations apply to all development of land and conditions that may affect drainage systems and patterns. The Planning and Development Department administers the regulations and coordinates with other agencies to ensure that new development does not increase runoff, divert flows or back water onto other properties.
10/8/2014	Local Additions and Addenda of Construction Codes (PDF)	The document provides local amendments that are in addition to the adopted building codes: 2009 International Building Code, 2009 International Residential Code, 2009 International Mechanical Code, 2009 International Plumbing Code, 2009 International Fuel Gas Code, 2008 National Electrical Code
6/1/2009	Subdivision (PDF)	The purpose of Maricopa County's Subdivision Regulations is to provide for the orderly growth and harmonious development of the County; to insure adequate traffic circulation through coordinated street systems with relation to major thoroughfares, adjoining subdivisions and public facilities; to achieve individual property lots of reasonable utility and livability; to secure adequate provisions for water supply, power, drainage, protection against flood, storm water retention/detention, sanitary sewerage; paved streets and other accesses; and other health and safety requirements; to consider adequate sites for schools, recreation areas, and other public facilities; to promote the conveyance of land by accurate legal description; and to provide practical procedures for the achievement of this purpose.