Colo. Rev. Stat. § 32-9-106.6
(1) Subject to the requirements of section 32-9-106.1 (2)(e)(III), in addition to the areas described in section 32-9-106.1, the following areas are included in the district:
(b) Area that is annexed by a municipality on or after May 25, 1994, if the municipality or part of the municipality was in the district at the time of the annexation. This annexed area shall also be included in the following districts automatically upon annexation:
Source: L. 94: Entire section added, p. 1328, § 1, effective May 25. L. 96: IP(2) and (2)(b) amended, p. 1080, § 4, effective May 23. L. 2007: IP(1) amended, p. 834, § 4, effective May 14; (1)(a) and (2) repealed, p. 836, § 10, effective October 1.