Definition
An adjournment that terminates an annual session of Congress. A “sine die” (“without day”) adjournment sets no day for reconvening, so that Congress will not meet again until the first day of the next session. Under the Constitution, adjournment sine die (except when the next session is about to convene) requires the agreement of both chambers, accomplished through adoption of a concurrent resolution, which in current practice also authorizes leaders of either chamber to reconvene its session if circumstances warrant.