Congressional Budget Office Cost Estimate: H.R. 4881, Old Pascua Community Land Acquisition Act [open pdf - 165KB]
From the Document: "H.R. 4881 would direct the Department of the Interior (DOI) to take into trust about 30 acres of tribally owned lands in Pima County, Arizona, for the benefit of the Pascua Yaqui Tribe. The legislation also would make gaming activities conducted on that land subject to the Indian Gaming Regulatory Act. Using information provided by DOI, CBO [Congressional Budget Office] estimates that the administrative costs to implement H.R. 4881 would not be significant."
Congressional Budget Office: http://www.cbo.gov/