When a challenge is made to a person who cast a mail ballot or provisional ballot and the person was not present at the time of the challenge, the county clerk and recorder or designated election official shall notify and mail a copy of the challenge to the person challenged in accordance with the rules of the secretary of state.
C.R.S. § 1-9-210
For the legislative declaration in HB 14-1164, see section 1 of chapter 2, Session Laws of Colorado 2014.