Bills are"sponsored" and "introduced" to the House or Senate only by members who agree that the proposed idea should be law. A proposed law may be called a "bill" or a "joint resolution."
Numbers are assigned to bills in the House(H.R.) and in the Senate(S.) after being introduced in Congress.
The bill passes through both the House and Senate, following a similar process:
STAGE 1: COMMITEE
STAGE 2: ACTION
STAGE 3: PRESIDENTIAL DECISION
After discussion and revision by committees, and debate by Congressional members, a bill is approved by both chambers. A final version goes to the President, who approves it, or vetoes it. If vetoed, it can still be made into a law by a two-thirds majority vote in Congress.
House: Responsible for tax legislation; revenue bills.
Senate: Responsible for confirmations of Presidential nominations; international treaties.
TRACK A BILL:
Choose a site that historically covers the congressional session related to your bill.
6th Congress to present (govtrack.us, 1799)
16th Congress (American Memory, 1819)
93rd Congress (congress.gov, 1973)