Congressional Budget Office Cost Estimate: H.R. 4598, Homeland Security Information Sharing Act [open pdf - 8KB]
"CBO [Congressional Budget Office] estimates that implementing H.R. 4598 within the Department of Justice (DOJ) would cost less than $500,000 annually, subject to the availability of appropriated funds. CBO cannot determine the cost to implement the bill's provisions for federal intelligence agencies. The bill would not affect direct spending or receipts, so pay-as-you-go procedures would not apply. H.R. 4598 contains no intergovernmental or private-sector mandates as defined in the Unfunded Mandates Reform Act and would impose no costs on state, local, or tribal governments. The bill would benefit state and local governments by allowing these levels of government better access to homeland security information. H.R. 4598 would direct the President to establish guidelines for federal agencies to share homeland security information with state and local personnel. Based on information from DOJ about the current and anticipated levels of information sharing, we do not expect that the bill would have a significant effect on federal spending for these activities."
Congressional Budget Office: https://www.cbo.gov/