Congressional Budget Office Cost Estimate: H.R. 4227, Vehicular Terrorism Prevention Act of 2018 [open pdf - 81KB]
From the Document: "H.R. 4227 would direct the Department of Homeland Security (DHS) to assess its current activities related to supporting emergency response providers and the private sector in preventing, mitigating, and responding to vehicular terrorism. Following that assessment, DHS would be required to develop and submit to the Congress a strategy to improve its efforts. Using information from DHS on the effort required to complete the assessment and strategy, CBO [Congressional Budget Office] estimates that implementing H.R. 4227 would have no significant effect on the federal budget. Enacting H.R. 4227 would not affect direct spending or revenues; therefore, pay-as-you-go procedures do not apply. CBO estimates that enacting H.R. 4227 would not increase net direct spending or on-budget deficits in any of the four consecutive 10-year periods beginning in 2028."
Congressional Budget Office: https://www.cbo.gov/