Colo. Rev. Stat. § 11-55-103
(1) Any authorized officer, after filing with the secretary of state his manual signature certified by him under oath, may execute or cause to be executed with a facsimile signature in lieu of his manual signature:
Source: L. 69: R&RE, p. 1082, § 1. C.R.S. 1963: § 125-6-3.
Cross references: For effect of facsimile signatures on sewer system revenue bonds, see § 31-35-404 (7).