C.R.S. § 31-30.5-701

The provisions of this part 7 governing the benefits payable in the event of the death or disability of an active old hire member shall apply with respect to any such member who dies or becomes disabled prior to January 1, 1980. The provisions of this part 7 governing the benefits payable in the event of the death of a retired old hire member shall apply regardless of the date of death.