Commerce City, CO Animal Ordinances: Microchipping (2026)

Commerce City's Animal Code does not require every dog or cat to carry a microchip. The microchip requirement appears only in Sec. 4-2011(b), the list of additional conditions the municipal court may impose on a dangerous animal beyond the automatic confinement, registration, and insurance conditions in Sec. 4-2011(a). Paragraph (b)(1) authorizes the court to order implantation of a microchip carrying the owner's identification, performed by a licensed veterinarian or licensed shelter, at the owner's cost, with the chip kept registered and maintained. The same subsection lets the court add spaying or neutering, a location restriction up to and including a citywide ban on the animal's presence, mandatory warning signage that complies with the Land Development Code, socialization or obedience training, or a pet-management program, all at the owner's expense.

These conditions are discretionary and stack on top of, rather than replace, the mandatory confinement and insurance rules in subsection (a). A court can revisit any added condition later under the disposition-review process in Sec. 4-4002(g), which lets an owner petition after twelve months to have conditions reduced once the animal is no longer considered dangerous.