How does HB4540 change pet custody law?
Rosie's Law gives Illinois courts a clear path to consider a pet's full caregiving history and well-being when deciding possession disputes.
The sound of a bill moving forward
Each number here marks a concrete step in the legislative process — from first draft to committee vote.
1
Bill filed
HB4540 introduced in the Illinois House of Representatives.
2
Committee hearings
Two hearings held so far with expert and public testimony.
1
Executive summary
Concise policy brief published for lawmakers and media.
50+
Public testimonies
Supporting evidence submitted from advocates statewide.
A coalition backing the bill with reach
Organizations across Illinois and beyond have stepped forward to support HB4540. Their expertise and credibility give this bill the weight it needs to move through Springfield.
We've been tracking companion-animal legislation for years, and we've never seen a bill with this much coalition momentum. The clarity of the legal framework here is what makes it different.
Dr. Lisa Harper
Policy Director, National Animal Law Alliance
This is exactly the kind of legislative work we wish more states would take up. Rosie's Law sets a thoughtful standard for how custody disputes should actually be decided.
Marcus Reed
Executive Director, Midwest Animal Welfare Council
Our members have seen too many cases where a pet's well-being gets lost in a legal battle over ownership. This bill provides a clear, humane path forward for Illinois courts.
Jen Park
Legislative Liaison, Illinois State Bar Association — Animal Law Section
Follow the legislative progress
Stay current with every committee hearing, floor vote, and amendment filed for Rosie's Law HB4540 as it moves through the Illinois General Assembly.
Common questions about rosie's law
Clear answers to the most frequent questions we hear from lawmakers, advocates, and the public.
What does HB4540 actually change in Illinois law?
It allows courts to consider who provided daily care and what is best for the animal's well-being when deciding ownership in a dispute, moving beyond simple property rules.
Does the bill apply to all companion animals or just dogs and cats?
The legislation covers companion animals, which generally includes pets kept in the home. The specific species covered are detailed in the full bill text available on this site.
How does this affect current custody cases in Illinois?
If passed, the law would apply to new possession disputes filed after the effective date. It does not retroactively change existing court orders or settled cases.
Who is pushing this bill forward — an animal rights group?
No. The initiative is led by Tameer Siddiqui, PsyD, and focuses on legal modernization, not activism. The goal is to give judges a clearer, more humane framework for resolving disputes.
Where is HB4540 in the legislative process right now?
The timeline page tracks every major milestone. You can see current status, committee assignments, and upcoming hearing dates on /legislative-timeline.
How can I submit a witness slip or contact my legislator about this bill?
Use the /support page to file a witness slip, contact your representative, or sign the petition. Each option links directly to the official Illinois General Assembly portal.
Still have questions?
We're happy to clarify anything about the bill, the process, or how you can help.
2,000 supporters have already signed. Add your voice today.
Rosie's Law needs advocates like you to keep moving forward. Whether you contact your legislator or just want more info, every action builds momentum for this bill in Illinois.