H.R. 6438 would require the Department of the Interior to study and report on the suitability and feasibility of establishing the Dearfield area in Colorado as a unit of the National Park System. CBO estimates that enacting H.R. 6438 would not affect direct spending or revenues. CBO has not estimated the discretionary costs of implementing the bill. The bill contains no intergovernmental or private-sector mandates as defined in the Unfunded Mandates Reform Act.