Rules Committee: It decides the rules for debate, and when the bill will come up for debate.
Floor Action: House debates the bill, and may add amendments. If a majority votes in favor of the bill, it goes to the Senate.
Introduced in Senate: A Senator introduces the bill, which is sent to a committee.
Committee Action: Same procedure as in the House. If the committee majority votes for the bill, it goes to the whole Senate.
Bill Called Up: Majority floor leader decides when the whole Senate will consider the bill.
Floor Action: The Bill is debated, and amendments may be added. If a majority votes in favor of the bill, it is returned to the House.
Conference Committee: If the House rejects any of the changes, the bill goes to a conference committee of members from both houses. It works out a compromise.
Vote on Compromise: Both houses must approve changes made by the conference committee. If approved, the bill goes to the president.
Presidential Action: The president may sign (approve) the bill or veto (reject) it. If approved, it becomes law.
Vote to Override: If the president vetoes the bill, it can still become law if two thirds of both houses vote to override the veto.