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Eugene, OR Animal Ordinances: Mandatory Spay/Neuter (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Governing section
EC 4.390(8)
Deadline, animal over 6 months
1 month from transfer
Deadline, younger animal
6 months from date of sale
Max fine
$500 under EC 4.990(2)(d)
Applies to
Shelter/agency adoptions and sales only

Summary

Eugene requires anyone who adopts or buys an animal from the city's animal regulation authority, or from any other agency that takes in unwanted or abandoned animals, to have it spayed or neutered under EC 4.390(8). Animals over six months old must be fixed within one month of the transfer; younger animals get six months.

(8) If an animal is adopted or sold from the animal regulation authority or from any other agency which accepts unwanted or abandoned animals, the owner must have the animal spayed or neutered within six months from the date of sale if the animal is too young to be spayed or neutered immediately. If an animal over six months old is adopted or sold by an agency which accepts unwanted or abandoned animals, the animal shall be spayed or neutered within one month after it is turned over to its new owner. The new owner shall not fail to comply with this subsection.

View official code

Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 20739, passed June 8, 2026).

Full Breakdown

390(8) doesn't impose a blanket spay/neuter mandate on every dog or cat in Eugene; it applies specifically to animals that come from the city's animal regulation authority or any other agency accepting unwanted or abandoned animals. If the animal is too young to be fixed immediately at the time of adoption or sale, the new owner has six months from the sale date to complete the surgery. If the animal is already over six months old when it's adopted or sold, the deadline is one month from the date it's turned over to the new owner.

The section states plainly that 'the new owner shall not fail to comply with this subsection,' making noncompliance itself a violation rather than a general duty. 390(6), and impounded animals may be sold, adopted or humanely destroyed after the applicable holding period under subsections (3) and (7) of the same section. 395's separate dog licensing scheme, which requires every dog with permanent canine teeth or six months of age to be licensed. 330, administers both the adoption paperwork and compliance tracking for the spay/neuter deadline.

Violations & Fines

Failing to spay or neuter a shelter-adopted animal within the EC 4.390(8) deadline is punishable by a fine of up to $500 under EC 4.990(2)(d), the same penalty tier as failing to reclaim an impounded animal on time under EC 4.390(9). The court may waive half the fine if the owner completes the animal regulation authority's violators school under EC 4.990(2)(a).

Frequently Asked Questions

Does Eugene require all pet owners to spay or neuter their animals?
No. EC 4.390(8) only applies to animals adopted or purchased from the city's animal regulation authority or another agency that accepts unwanted or abandoned animals. Dogs and cats acquired privately, from a breeder, or already owned before this rule applies are not covered by this specific mandate.
How long do I have to get a newly adopted puppy fixed?
If the puppy is too young for surgery at adoption, EC 4.390(8) gives the new owner six months from the date of sale to have it spayed or neutered. If the animal is already over six months old at adoption, the deadline shortens to one month from the transfer date.
What's the penalty for missing the spay/neuter deadline?
A violation of EC 4.390(8) is punishable by a fine of up to $500 under EC 4.990(2)(d). The animal regulation authority may waive half the fine if the owner attends its violators school, an option built into the same penalty subsection.

Sources & Official References

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