C.R.S. § 25-4-1610

(1) It is unlawful for: (a) Any person to begin the construction or extensive remodeling of a retail food establishment unless such person has received department or county or district board of health approval of plans and specifications for such construction or remodeling pursuant to section 25-4-1605 ; (b) Any person to operate a retail food establishment without a valid license or certificate of license from the department or a county or district public health agency having jurisdiction over such establishment, including continuing to operate a retail food establishment that has had its license or certificate of license suspended in accordance with section 25-4-1611.5 ; (c) Any person to violate this part 16 and any rules promulgated pursuant to this part 16; (d) Any person or retail food establishment to refuse to permit entry to such establishment in accordance with sections 25-4-1604 (1)(e) and 25-4-1606 (2); (e) Any retail food establishment to sell or serve food prepared in a private home to any person; (f) Any person to fail to pay a civil penalty assessed by the department or a county or district board of health.