This is a Congressional Budget Office (CBO) cost estimate for H.R. 5239. From Summary: "H.R. 5239 would direct the Department of Energy (DOE) to establish a program to identify and promote products and technologies to mitigate the threat of cyber-related disruptions to the bulk power system. (The bulk power system comprises facilities and control systems necessary for operating an interconnected network for transmitting electric energy and facilities that generate electricity necessary to maintain the reliability of that network.) CBO estimates that implementing H.R. 5239 would cost $56 million over the 2019-2023 period, assuming appropriation of the necessary amounts. Enacting the bill would not affect direct spending or revenues; therefore, pay-as-you-go procedures do not apply. CBO estimates that enacting H.R. 5239 would not increase net direct spending or on-budget deficits in any of the four consecutive 10-year periods beginning in 2029."
Congressional Budget Office: https://www.cbo.gov/