Chicago (IL) — dog licensing + rabies vaccination required (Municipal Code 7-12-140)
Source: City of Chicago Clerk's Office — Dog Guide 2025 (official city publication implementing Municipal Code 7-12-140), extracted 2026-07-23. First-hand city document; C1 substring-verified against pdf-raw/local-ordinance/chicago_dog_guide.txt.
Chicago requires every dog owner to license their dog and keep it rabies-vaccinated. This is a licensing + rabies municipal sub-topic, parallel to Tacoma (licensing + unaltered limit) and Denver (licensing + leash + intact permit) already in this category. The operative provision is Chicago Municipal Code 7-12-140 ("License required"), with 7-12-200 ("Rabies vaccination required") as the companion section.
This covers the Chicago "what are dog owners required to do?" question: register dogs over four months with the City Clerk and maintain current rabies vaccination. It complements the leash/limit/tethering ordinances already documented for other cities.
Verbatim C1 claims (each a substring of the source file + this body):
- "All Chicago dogs older than four months are required to be registered with the City Clerk’s Office."
- "All Chicago dogs must have a current rabies vaccination"
- "every Chicago resident owning a dog must obtain a dog license."