From http://www.vote-smart.org/resource_govt101_02.php
Quote:
E. The President – the bill is sent to the President for review.
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.”)
If the President vetoes the bill it is sent back to Congress with a note listing his/her reasons. The chamber that originated the legislation can attempt to override the veto by a vote of two-thirds of those present. If the veto of the bill is overridden in both chambers then it becomes law.
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.”)
If the President vetoes the bill it is sent back to Congress with a note listing his/her reasons. The chamber that originated the legislation can attempt to override the veto by a vote of two-thirds of those present. If the veto of the bill is overridden in both chambers then it becomes law.
F. The Bill Becomes A Law – once a bill is signed by the President or his veto is overridden by both houses it becomes a law and is assigned an official number.