Impact of the Budget Control Act Discretionary Spending Caps on a Continuing Resolution [November 14, 2017] [open pdf - 134KB]
"Appropriations enacted for FY2018 are subject to two statutory discretionary spending limits established by the Budget Control Act of 2011 (BCA): One applies to defense discretionary spending, and the other applies to nondefense discretionary spending. The defense spending limit for FY2018 is $549 billion and applies to discretionary spending in budget function 050 (national defense) only. The nondefense spending limit for FY2018 is $516 billion and applies to discretionary spending in all other budget functions. The BCA stipulates that some spending is effectively exempt from the limits, such as appropriations designated as emergency requirements or for overseas contingency operations. If appropriations are enacted that exceed either the defense or nondefense discretionary limits, a sequester would be triggered, making largely across-the-board reductions to nonexempt programs, activities, and accounts within the category of the breach. A sequester is implemented through a sequestration order issued by the President as required by law"
CRS Insight, IN10817
Federation of American Scientists: http://www.fas.org/sgp/crs/index.html