Colo. Rev. Stat. § 10-4-623
(2) The coverage described in section 10-4-620 may also be subject to exclusions where the injured person:
(3)
(b) The insurer shall be deemed to have complied with the requirements of section 10-4-609 (1) and the exclusion of the insured from uninsured motorist coverage shall be deemed valid if the named insured has rejected the uninsured motorist coverage in writing. Such exclusion shall be continuing until such time as the insured requests that the insurer provide uninsured motorist coverage. The insurer shall not have a duty to offer uninsured motorist coverage after receiving the insured's written request for exclusion even though:
(c) The insurer shall be deemed to have complied with section 10-4-609 (1) and the insured's uninsured motorist coverage shall be deemed valid if the insurer has offered coverage at available levels and the insured has selected coverage of a certain value. The insurer shall not have a duty to offer changes in uninsured motorist coverage to the insured even though:
Source: L. 2003: Entire section added, p. 1562, § 3, effective July 1.
Editor's note: This section was originally numbered as § 10-4-620 in House Bill 03-1188 but has been renumbered on revision for ease of location.