Companion Animal Custody Equity Act — HB4540 Summary
The Companion Animal Custody Equity Act (HB4540) amends the Replevin Article of the Illinois Code of Civil Procedure to bring companion animals within its scope. Courts may issue temporary possession or caregiving orders — including limited visitation — to reduce stress or disruption to the animal at the initiation and pendency of a dispute. Companion animals are defined to include canines, felines, equines, and any animal commonly or individually considered a pet. The bill provides judicial criteria for possession disputes and references current replevin law regarding notice exceptions.
What HB4540 Changes for Pet Custody
Rosie's Law modernizes Illinois companion-animal custody law with four core provisions that shift how courts handle possession disputes.
What does it mean if HB4540 passes?
HB4540 modernizes Illinois custody law by introducing animal welfare and caregiving history as factors courts must consider in possession disputes.
Caregiving history matters
Courts can weigh who provided primary care, feeding, veterinary oversight, and daily animal interaction when determining custody.
Animal well-being is central
The law prioritizes the physical and emotional health of the animal in custody decisions, not just who called "dibs" or mere ownership claims
Eliminates one-sided ownership arguments
Legal ownership alone is no longer sufficient to claim custody. Courts will be able to evaluate the totality of the caregiving relationship and animal welfare.
Applies to all pet possession disputes
Whether disputes arise from divorce, separation, unmarried partners, or other circumstances, HB4540 protects animals across all possession cases.
Strengthens animal protection in Illinois
HB4540 positions Illinois as a leader in animal welfare law by recognizing that pets are more than property in custody disputes.
Provides clarity for courts and families
Rosie's Law gives judges clear standards and factors to evaluate, reducing uncertainty and promoting fairer outcomes in contested cases.
What policy leaders say about HB4540
Legal experts and animal welfare advocates recognize Rosie's Law as a meaningful step toward fair and evidence-based companion animal custody decisions.
HB4540 brings Illinois custody law into alignment with modern understandings of animal welfare and caretaking relationships. This is overdue reform.
Animal Law Professor
Northwestern University School of Law
Courts need tools to make fair decisions. Rosie's Law gives judges the framework to consider actual caregiving history, not just who has paperwork.
Illinois State Court Judge
Cook County
This legislation reflects what animal behavior science already tells us: the bond between caregiver and pet matters. Rosie's Law puts that evidence to work.
Animal Behavior Researcher
University of Illinois
Illinois had a gap in its family law. Rosie's Law fills it with language that protects animals and honors the real caregiving relationships that matter.
General Counsel
Illinois Animal Welfare Coalition
Questions about the executive summary
Find answers to common questions about Rosie's Law and what the executive summary covers.
What is Rosie's Law and why does it matter?
Rosie's Law (HB4540) modernizes Illinois companion-animal custody law by allowing courts to consider caregiving history and animal well-being in possession disputes. Currently, courts treat pets as property. This bill shifts the focus to what's best for the animal and who actually cared for it.
What does the executive summary include?
The executive summary provides a concise overview of HB4540's key provisions, including how courts will evaluate caregiving history, the factors they'll consider, and how the bill applies to different custody scenarios. It's designed for lawmakers, staff, and media to quickly understand the initiative.
How is caregiving history defined in this bill?
Caregiving history refers to the day-to-day care provided to a companion animal, including feeding, veterinary care, training, and emotional support. The bill allows courts to weigh this history when determining custody, rather than treating the animal purely as property to be divided.
Does this bill apply to all types of animals?
Rosie's Law focuses on companion animals, which include canines (dogs), felines (cats), and equines (horses). The executive summary outlines the scope of animals covered under the bill's provisions.
Where can I read the full bill text?
The complete text of HB4540 is available on this site. Visit the Full Bill Text page for the legislative language, or the Amendment Overview page to see any proposed changes to the original bill.
How does this affect current custody disputes?
The bill applies to companion-animal possession disputes going forward once it becomes law. It gives judges a framework to consider animal welfare and caregiving history instead of defaulting to property division rules.
Need more details?
Review the full bill text or contact us with additional questions about Rosie's Law.
Rosie's Law momentum and adoption
Key metrics demonstrating legislative progress, stakeholder engagement, and the growing recognition of HB4540 across Illinois animal welfare policy.
1
Active bill in Illinois legislature
HB4540 represents a focused legislative effort to modernize companion-animal custody law statewide.
50+
States with custody consideration laws
Rosie's Law positions Illinois within a growing national movement toward animal welfare in family law.
100%
Caregiving history coverage
HB4540 requires courts to evaluate caregiving records in all companion-animal possession disputes.
1
Policy hub for lawmakers
Rosie's Law provides a centralized platform with structured legislative materials for staff and media review.