1) A bill can be introduced in either the House or Senate by a member of Congress and is then assigned to a committee for review.
2) If approved by the committee, the bill moves to the floor for debate and a vote in that chamber.
3) If passed, it moves to the other chamber where the process is repeated - if changes are made, a conference committee reconciles the versions.
4) The final bill is then sent to the President - if signed, it becomes law.