C.R.S. § 25-4-1615

(1) Except as specified in subsection (3) of this section, a person may have a pet dog in an outdoor dining area of a retail food establishment if: (a) The retail food establishment elects to allow pet dogs in its outdoor dining area; (b) A separate entrance is present through which the pet dog enters and exits the outdoor dining area without passing through the retail food establishment; (c) The person does not allow the pet dog on chairs, benches, seats, or other furniture or fixtures; (d) The outdoor dining area is not used for food or drink preparation; except that an employee of the retail food establishment may refill a beverage glass in the outdoor dining area from a pitcher or other container; (e) The pet dog is on a leash or confined in a pet carrier and is under the control of a person; (f) The licensee of the retail food establishment ensures compliance with local ordinances related to sidewalks, public nuisances, and sanitation; and (g) The retail food establishment is in compliance with any other control measures approved by the county or district public health agency. (2) A person who brings a pet dog in an outdoor dining area in accordance with this section is responsible for the behavior of that pet dog. (3) Intentionally left blank —Ed. (a) The governing body of a city, county, or city and county may prohibit the presence of pet dogs in outdoor dining areas of retail food establishments located within the governing body’s jurisdiction. (b) A retail food establishment may elect not to allow pet dogs in its outdoor dining area. (4) Nothing in this section is intended to restrict the presence of a service animal, as defined in section 24-34-301 .