CO HB1120

Establishes statewide mandatory rabies vaccination requirement for all dogs and cats 4 months of age or older, administered by licensed veterinarians using USDA-approved vaccines.

Requires pet owners to vaccinate their animals within 90 days of assuming ownership, with different timelines for animals born to or acquired before 4 months of age.

Veterinarians must issue rabies vaccination certificates and tags to owners upon administration, with vaccinations performed according to the "Compendium of Animal Rabies Prevention and Control" guidelines.

Permits medical waivers from vaccination if a veterinarian determines rabies inoculation is contraindicated due to the animal's medical condition with written owner consent.

Allows counties and municipalities to impose more stringent rabies control requirements, but prohibits more frequent revaccination of currently vaccinated animals unless for post-exposure rabies treatment; exempts feral cats on agricultural land from vaccination requirements.