Colo. Rev. Stat. § 31-15-711.5
Any municipality that chooses to establish and operate a jail, as authorized in section 31-15-401(1)(j), that begins operations on or after August 30, 1999, may establish sanitary standards for such jail relating to space requirements, furnishing requirements, required special use areas or special management housing, and environmental condition requirements, including but not limited to standards pertaining to light, ventilation, temperature, and noise level. If a municipality does not adopt standards pursuant to this section, the jail operated by or under contract with the municipality shall be subject to the standards adopted by the department of public health and environment pursuant to section 25-1.5-101(1)(i), C.R.S. In establishing such standards, the municipality is strongly encouraged to consult with national associations that specialize in policies relating to correctional institutions.
C.R.S. § 31-15-711.5