Trenton, NJ Animal Ordinances: Mandatory Spay/Neuter (2026)
Key Facts
- Who must comply
- Every dog/cat over 6 months old
- Breeding permit fee
- $300/yr (1 animal); $400/yr (multiple)
- Vet waiver
- Written statement of extreme health condition
- TNVR exception
- Registered community-cat colony caretakers
- Adopted
- 2023, amended 2024 (Ord. 23-45, 24-31)
Summary
Trenton requires every dog or cat over six months old to be spayed or neutered before it can be owned, possessed, or kept in the City. City Code § 21-47 makes unaltered pet ownership unlawful outright, subject only to the narrow exceptions listed in § 21-48, such as a veterinarian's health waiver or a paid $300 breeding permit.
§ 21-47. Spaying or neutering required. It shall be unlawful to own, possess, or keep in the City any dog or cat over the age of six months that has not bee spayed or neutered, except as provided in § 21-48 of this article. § 21-48. Exceptions. A. Statement of veterinarian. If a licensed veterinarian states, in writing, that an animal is unfit to undergo the required surgical procedure because of an extreme health condition of the animal. Such extreme health conditions shall include, but not be limited to: severe cardiovascular compromise, bleeding disorder, respiratory disease and hepatic disease. The old age of an animal shall not, of itself, constitute an extreme health condition for purposes of this action.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4853025; v21 updated 2025-12-16; through 12-16-2025).
Full Breakdown
Adopted in 2023 and amended in 2024, Article VI of Chapter 21 requires spay or neuter surgery for essentially every dog and cat kept in Trenton past six months of age. Section 21-48 lists the only exceptions: a licensed veterinarian's written statement that surgery is unsafe due to an extreme health condition such as severe cardiovascular compromise, a bleeding disorder, respiratory disease, or hepatic disease (old age alone does not qualify); an animal temporarily in the City for a nonprofit-sponsored show or event; an animal that regularly competes in competitions; an animal kept in the City fewer than 30 days a year if the owner holds a valid out-of-town license; registered service and law-enforcement animals; and Trap-Neuter-Vaccinate-Return colony caretakers registered with the City.
Owners who want to breed an intact dog or cat instead of altering it must obtain a breeding permit under § 21-49, costing $300 a year for one unaltered animal and $400 a year for multiple. Permit conditions require offspring to be at least 10 weeks old and vaccinated before sale or adoption, require the permit number to appear in any advertising, and subject the holder to a yearly inspection by an animal control officer, health officer, or code enforcement officer, escalating to every 30 days if a complaint arises.
Violations & Fines
The article does not print its own penalty schedule for unaltered ownership itself, so a violation is enforced through Chapter 21's general seizure and hearing mechanisms and Chapter 1's General Penalty provisions. Breeding without the required permit is separately unlawful under § 21-49A, and permit holders who violate the § 21-49C conditions, such as advertising without displaying their permit number, risk losing the permit at their yearly or complaint-triggered inspection.
Frequently Asked Questions
Do I have to spay or neuter my dog or cat in Trenton?
Can my vet get my pet out of the spay/neuter requirement?
What if I want to breed my dog or cat instead of altering it?
Sources & Official References
Other rules in Trenton
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