Tinley Park, IL Animal Ordinances: Microchipping (2026)
Key Facts
- Trigger
- First adjudicated running-at-large violation
- Deadline
- Microchip within 14 days, owner's expense
- Second violation
- Animal must also be altered within 14 days
- Impound hold
- At least 5 days at shelter
- Enforcing body
- Hearing Officer, Animal Control Officer, Police
Summary
Tinley Park does not require every pet to be microchipped at adoption, but § 91.07(B) makes it mandatory the first time a dog or cat is found running at large: the Hearing Officer or court must order the animal microchipped, at the owner's expense, within 14 days if it is not chipped already.
(B) A dog or cat found by the Hearing Officer or the court having jurisdiction to be in violation of this chapter must be microchipped at the owner’s expense, if not already microchipped, within 14 days. ... (C) A dog or cat found by the Hearing Officer or the court having jurisdiction to be in violation of this chapter a second time must be altered at the owner’s expense, if not already altered, within 14 days.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: 2026 S-40: Supplement contains: Local legislation current through Ordinance 2026-O-007, passed 2-17-2026, Resolution 2018-R-077, passed 10-2-18, and State legislation current through 2010 Pamphlet No. 7).
Full Breakdown
Chapter 91's running-at-large provisions build in an escalating microchip-and-alter requirement. 07, an owner may not let a dog or other animal loose in the streets, public ways or on another person's property; keeping, housing or feeding an animal is treated as prima facie proof of ownership if the animal is found loose. 07(B) requires the animal be microchipped, at the owner's expense, within 14 days if it is not chipped already. 07(C): the animal must additionally be altered, again at the owner's expense, within 14 days.
08 by the Animal Control Officer or any police officer, held for at least five days unless the animal's health makes that impracticable, and checked for a collar, tags or microchip so the shelter can contact any owner on file. To redeem an impounded animal the owner must show proof of ownership, pay the shelter's impound fees, and within 14 days of a request produce proof of a current rabies vaccination and a village dog license, or citations follow. 07(B) is therefore tied directly to enforcement history rather than being a blanket local licensing requirement for every pet in the village.
Violations & Fines
Letting a dog or cat run at large is itself a Chapter 91 violation carrying the § 10.99 general penalty of $50 to $750 per day. Once the Hearing Officer or court enters a finding of violation, failing to microchip within the 14-day window, or to alter the animal after a second finding, is a separate compliance failure that can support further citations and continued impoundment until the owner complies.
Frequently Asked Questions
Does Tinley Park require every dog or cat to be microchipped?
What happens the second time my pet is caught at large?
How do I get my impounded pet back?
Sources & Official References
Other rules in Tinley Park
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Microchipping in Nearby Cities
How other cities in Cook County handle microchipping.