Chicago Air Quality Ordinance and 2025 Renewable Energy Rules Set Timeline for Local Impacts

Chicago's Air Quality Ordinance, approved in March 2021, bans new incinerators, landfills and mining operations while requiring site plan reviews for certain heavy recycling and industrial facilities. The rule took effect after approval and continues to shape approvals for new projects in the city. Separately, in January 2025 all city-owned buildings along with O'Hare and Midway airports switched to 100 percent renewable energy sources.

These measures join ongoing enforcement by the Chicago Department of Public Health, which handles asbestos notifications, dust controls at rock-crushing facilities introduced in 2023, and operating standards for large recycling facilities set in 2020. The department applies these rules through permit reviews and compliance checks across neighborhoods.

Effects on new construction and daily operations

Under current building requirements, all newly constructed residential buildings with five or more units and commercial properties with 30 or more parking spaces must equip 20 percent of those spaces with Electric Vehicle Supply Equipment. Residents moving into or using these properties encounter the infrastructure as part of standard construction. Airport operations and city facilities running on renewable power since January 2025 reduce certain energy-related emissions at those sites, which serve large numbers of Chicago travelers and municipal workers each day.

The proposed Hazel Johnson Cumulative Impacts Ordinance would add requirements for cumulative impact studies on new heavy industrial facilities in overburdened neighborhoods. As of mid-2025 the measure remains in legislative limbo, so its review process has not yet applied to new applications.

Next steps for implementation

Enforcement of the 2021 Air Quality Ordinance and the 2025 renewable energy transition continues through existing city permitting and facility operations. The Chicago Department of Public Health maintains its role in reviewing asbestos notifications, rock-crushing dust controls and recycling facility standards on an ongoing basis. Any future action on the cumulative impacts measure would require additional legislative steps before studies become mandatory for qualifying projects.

Residents encounter these rules mainly through new building permits, airport operations and industrial site reviews rather than immediate daily changes. The timeline for broader effects depends on the pace of new construction and the status of pending legislation.