Here. The summary:
The bill requires a state-supported institution of higher education to classify as an in-state student for tuition purposes a student who is a member of a federally recognized American Indian tribe with historical ties to Colorado, as designated by the Colorado commission on Indian Affairs. A student classified as an in-state student pursuant to this tuition classification may be counted as a resident for any purpose and is eligible for state financial aid and the college opportunity fund stipend. The bill exempts Fort Lewis College from its provisions.
What is unique about this bill is that is would provide in state tuition to Native Students regardless if your tribe is currently located within the state, so long as your tribe has historical ties to Colorado. Several states have similar tuition statutes as shown here.