Colo. Rev. Stat. § 35-47-103
Any person who knowingly permits any of said animals to run at large commits a civil infraction.
Source: L. 57: p. 143, § 3. CRS 53: § 8-19-3. C.R.S. 1963: § 8-18-3. L. 2021: Entire section amended, (SB 21-271), ch. 462, p. 3283, § 646, effective March 1, 2022.