C.R.S. § 1-1-105

Any election, and any acts relating thereto, including but not limited to elections under this code, the “Colorado Municipal Election Code of 1965”, article 10 of title 31 , C.R.S., school elections under title 22, C.R.S., and special district elections under title 32, C.R.S., which were conducted prior to July 1, 1987, pursuant to provisions which refer to a qualified elector rather than a registered elector and which were valid when conducted, shall be deemed and held to be legal and valid in all respects.