In December of 2016, The Black Vault filed a FOIA request with the CIA, requesting all records pertaining to a contingency plan for the CIA, should the U.S. government shutdown.
It took until February of 2022 to get the requested material.
Below, you will find records from 2016, when the CIA was preparing for a shutdown. The responsive document was a declassified, in part, SECRET OPA Notice outlining the procedures for a pending funding lapse at the end of 2016.
Document Archive
The CIA and a Government Shutdown – What Happens? [6 Pages, 0.8MB]