The Phoenix City Council approved Zoning Ordinance Text Amendment Z-TA-2-25-Y (Ordinance G-7396) to establish a comprehensive regulatory framework for data centers across the city. The amendment adds a new definition for "data center" to Chapter 2, Section 202 of the Phoenix Zoning Ordinance, defining it as a facility primarily used for data services (storage, processing, management, and transmission of digital data), excluding those that do not exceed 10% of gross floor area, serve enterprise functions of the owner, and are not used to lease data services to third parties. It also modifies Chapter 5, Section 507 Tab A.II.D to include specific design standards for data centers, such as minimum 150-foot setbacks for mechanical equipment from rights-of-way or residential zoning, full screening of equipment, 30-foot perimeter landscape setbacks with specific tree and shrub requirements, and enhanced architectural guidelines to mitigate visual impacts. Furthermore, Chapter 6, Section 647 (Special Permit Uses) is amended to allow data centers only within C-2 (Intermediate Commercial), C-3 (General Commercial), CP/GCP (Commerce Park/General Commerce Park), A-1 (Light Industrial), and A-2 (Industrial) zoning districts, subject to a Special Permit and performance standards. Key performance standards include a minimum distance of 2,640 feet from approved high-capacity transit stations, a requirement for a utility company agreement affirming capacity to serve energy demand within two years, and strict noise standards (not exceeding 55 dB(A) daytime and 45 dB(A) nighttime) for sites within 300 feet of residential zoning districts, requiring a third-party noise study.