In most places, state lawmakers and governors are responsible for drawing and approving maps for U.S. and state legislative districts following each U.S. Census.
But a growing number of states are shifting the task to independent or bipartisan commissions, or making other changes intended to reduce the likelihood of partisan gerrymandering.
Take a look at some of the states (including CO) using commissions or other nontraditional methods for the next round of redistricting, after the 2020 Census here.
Source:
https://coloradosun.com/