Ames, IA Animal Ordinances: Mandatory Spay/Neuter (2026)

The City of Ames has no blanket spay-or-neuter law for household pets; the requirement is one of the additional handling conditions the Animal Control Officer can impose under Sec. 3.206 after an animal is designated dangerous under Sec. 3.202(1). Sec. 3.206(a) specifically authorizes the officer to require that the animal be spayed or neutered at the owner's expense by a specific date, with proof furnished to Animal Control. That condition sits alongside the other Sec. 3.206 requirements the officer can layer on: microchipping and photographing under (b), a pet safety course under (c), a distinctive identification collar under (d), a posted warning sign under (e), and current rabies vaccination under (f).

Because the condition attaches to the individual dangerous-animal determination rather than to ownership generally, it reaches only animals that have been through the Sec. 3.202 process, typically after an unprovoked serious injury to a person or another domestic animal, a fighting history, or a documented risky disposition. The requirement works alongside the separate insurance mandate in Sec. 3.204, which requires a $100,000 bond or $1,000,000 liability policy for the same class of animal, and the confinement standards in Sec. 3.205.