Department of State, Foreign Operations, and Related Programs: FY2018 Budget and Appropriations [February 12, 2018] [open pdf - 1MB]
"The FY2018 appropriations for Defense (DOD) and/or nondefense could affect SFOPS funding in FY2018 because of the discretionary spending limits set by the Budget Control Act of 2011 (P.L. 112-25). For FY2018, the caps for enduring or base funds are set at $549 billion for defense and $516 billion for nondefense (including SFOPS). Exceeding these caps could lead to congressional action. Congress may seek to avert sequestration by amending or repealing the BCA, or passing a bipartisan budget agreement to raise OCO-designated funding for both DOD and SFOPS, as it did in FY2015."
CRS Report for Congress, R44890