Chicago Mayor Brandon Johnson proposes a 12-month data center expansion moratorium

On Sep 23 2026, Chicago Mayor Brandon Johnson proposed a City Council ordinance for a 12-month moratorium on new data center development so the city can write longer-term rules on pollution, water use, electricity costs, noise, and air quality. The measure follows an August 2026 executive order that intensified scrutiny and stood up a city task force. Cosponsored by Alds. Maria Hadden (49th), Lamont Robinson (4th), and Leni Manaa-Hoppenworth (48th). Chicago Tribune reports the proposal was introduced the same day; parliamentary delays later stalled committee referral. Proposal only; not an enacted ban. Industry group Data Center Coalition opposed. Local press + mayor statement.

Chicago Mayor Brandon Johnson proposes a 12-month data center expansion moratorium is recorded as a operational_restriction applying in Chicago on the DEPLOY registry.

Chicago Mayor Brandon Johnson proposes a 12-month data center expansion moratorium is recorded as effective September 23, 2026 on the DEPLOY registry.

Chicago Mayor Brandon Johnson proposes a 12-month data center expansion moratorium is currently in effect and applies to covered operators in the named jurisdiction.

Chicago Mayor Brandon Johnson proposes a 12-month data center expansion moratorium is recorded as cross-cutting on the DEPLOY registry, meaning it does not single out one robot form factor. Operators of any covered robot type in Chicago should review the underlying primary sources for applicability.