H.R. 370 would make technical changes to the requirements for the Department of Homeland Security’s (DHS) Quadrennial Review. Every four years, DHS is required to conduct a comprehensive review of its strategy to improve the security of the United States, including recommending improvements to its long-term security strategy. Based on information from DHS, CBO estimates that implementing H.R. 370 would have an insignificant effect on spending; such spending would be subject to the availability of appropriated funds.