Congressional Budget Office Cost Estimate: H.R. 3249: Project Safe Neighborhoods Grant Program Authorization Act of 2017 [open pdf - 90KB]
"H.R. 3249 would authorize the appropriation of $50 million annually over the 2018-2020 period for the Department of Justice to make grants to state and local governments to support intergovernmental partnerships that would aim to reduce violent crime, including that perpetrated by street gangs. Assuming appropriation of the authorized amounts, CBO [Congressional Budget Office] estimates that implementing H.R. 3249 would cost $130 million over the 2018-2022 period, with the remaining amounts spent in subsequent years. The costs of the bill fall within budget function 750 (administration of justice) and are shown in the following table. Estimated outlays are based on the historical rate of spending for similar programs."
Congressional Budget Office: https://www.cbo.gov/