Cats in Colorado, United States: rules and travel
There is no statewide rabies vaccination rule for pets and licensing is local. Owners are liable for serious dog bites, and local dangerous dog rules may not target breeds.
Dog licensing, leash and many breed rules are set by counties and cities; check the local animal control office.
The national rules for United States apply here too. National rules
Laws change: this is general information, not legal advice. The authority linked on each line has the final word.