Chicago, Illinois

City of Chicago: adopted data center benchmarking ordinance; effect unverified

Reporting or resource-use requirement · City of Chicago only (local rule)

Adopted; effective status unverified This instrument was adopted; whether it has taken effect has not been verified.

Scope

The Clerk’s matter title describes amendments to Chicago Municipal Code sections 18-14-101.3 and 18-14-101.4 on covered buildings and public availability of water-usage data, and section 18-14-102.3 on the data center exception from public benchmarks and performance ratings. The Council recorded passage as substituted and amended on 23 September 2026. These are the subject areas stated by the official record; final amended scope and effective status are not established by the unread operative text.

Geographic scope
Chicago, Illinois
Jurisdiction
Local
Authority type
Local government
Issuing authority
Chicago City Council

Dates

Adopted
23 September 2026
Effective
Effective status not verified
Scheduled expiration
None scheduled
Ended
Not recorded as ended
Completion condition
None stated
Source document
The source page states no document date
Last checked
1 October 2026 (earlier than tracker date 5 October 2026; not an automatic status change)

Summary

The Chicago City Council passed Substitute Ordinance SO2026-0027165 as substituted and amended on 23 September 2026, according to the City Clerk’s final matter record. The matter concerns public release of data center benchmarking information, covered buildings and water-usage data. The final amended text and its effective clause have not been read here, so current legal effect and final detailed requirements remain unverified.

What this does not establish

  • The committee-amended text is an image-only PDF; the text-layer substitute ordinance (a supporting source) predates the committee amendment and its text layer does not show which words are added or struck, so the final wording is not described.
  • The saved evidence is the City Clerk's eLMS record for the matter, retrieved from the Clerk's public API.
  • The substitute text defines a data center by reference to the benchmarking tool; the committee-amended definition was not readable.
  • The current Clerk API confirms Council passage and final status. The final amended attachment remains unreadable in the saved evidence; retrieval was refused by the capture access check. No current binding effect or effective date is inferred.

Unresolved questions

  • Obtain and read the final amended ordinance and applicable publication/effective clause to establish when it takes effect and its operative requirements.

Relationships

Supersession means a later instrument replaces the earlier legal effect. Repeal links identify the repeal instrument and the measure it ends. A later implementation or related letter is not treated as a replacement unless the record says so.

  • No related action is recorded.

Sources

Primary source

https://chicityclerkelms.chicago.gov/Matter/?matterId=32262AFF-6580-F111-AB0E-001DD80216AA

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