C.R.S. § 1-5-601.5

(1) All voting systems and voting equipment offered for sale on or after May 28, 2004, must meet the voting systems standards that were promulgated in 2002 by the federal election commission. At the secretary of state’s discretion, the secretary may require by rule that voting systems and voting equipment satisfy voting systems standards promulgated after January 1, 2008, by the federal election assistance commission as long as such standards meet or exceed those promulgated in 2002 by the federal election commission. (2) A voting system or voting equipment offered for sale or lease for use in an election using instant runoff voting must meet the minimum standards and specifications developed by the secretary of state in accordance with section 1-5-616 (1.5). If standards related to instant runoff voting are promulgated by the federal election assistance commission, the secretary of state may, at the secretary of state’s discretion, require by rule that a voting system or voting equipment used to conduct an election using instant runoff voting meet the federal standards, so long as the federal standards meet or exceed those promulgated by the secretary of state.