Or becomes law without sig after ten days.
A pocket veto occurs when a bill fails to become law because the president does not sign the bill and cannot return the bill to Congress within a 10-day period because Congress is not in session. ... Congress can override the veto by a two-thirds vote of both chambers, whereupon the bill becomes law.
If the President signs the bill, it becomes law. The President might not sign the bill, however. If he specifically rejects the bill, called a veto, the bill returns to Congress. ... If the President takes no action at all, and ten days passes (not including Sundays), the bill becomes law without the President’s signature.
A bill becomes law if signed by the President or if not signed within 10 days and Congress is in session. If Congress adjourns before the 10 days and the President has not signed the bill then it does not become law (”Pocket Veto.”)