Chicago HVAC Blog

Chicago’s Cooling Ordinance: What You Need to Know

Chicago’s Cooling Ordinance

  Chicago Cooling Ordinance — 2025 Update Chicago’s Cooling Ordinance, adopted June 22, 2022, is now fully in force. All covered buildings must have permanent air-conditioning in designated common areas as of May 1, 2024. 1. Ordinance Snapshot Cooling trigger: Heat-index > 80 °F Temporary A/C: Allowed only through April 30, 2024 Permanent A/C: Required starting […]

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