Colo. Rev. Stat. § 8-74-105
The deputy, hearing officer, or industrial claim appeals panel may, on his or its own motion, reconsider a decision within a twelve-month period subsequent to the date of decision when it appears that an apparent procedural or substantive error has occurred in connection therewith. Notification of a decision on reconsideration and the reasons therefor shall be promptly given to all interested parties. In the event that an appeal involving an original decision is pending as of the date on which a decision as a result of reconsideration is issued by the division, such appeal shall be considered void. Any interested party who is dissatisfied by a decision that is issued as a result of reconsideration may appeal that decision in the manner set forth in section 8-74-106.
C.R.S. § 8-74-105
This section is similar to former § 8-74-110 as it existed prior to 1976.