How a bill becomes a law
Every federal law in the United States starts the same way: as a single bill, introduced by one member of Congress. The vast majority die in committee. The few that survive run a six-stage gauntlet across both chambers and the White House. Here's how it actually works — with live links to bills currently sitting at each stage.
1. Introduction
A member of the House or Senate drops a bill at the chamber's "hopper."
It's assigned a number (e.g. HR 2102 for the 2,102nd House bill of
this Congress, or S 1690 for the 1,690th Senate bill). The bill is
printed and sent to one or more committees with jurisdiction.
Browse bills introduced in the current Congress →
2. Committee review
Most bills die here. The committee can hold hearings, mark the bill up (revise it), report it favorably to the floor, or simply sit on it. Over 90% of bills never make it past this stage. Subcommittee work, witness testimony, and amendments all happen behind committee doors.
See every standing, select, and joint committee →
3. Floor consideration
If the committee reports the bill favorably, it goes to the full chamber. In the House, the Rules Committee sets the terms of debate (time limits, which amendments are allowed). In the Senate, debate is open-ended unless cloture is invoked — a 60-vote threshold to end debate that drives most of the filibuster news you hear about.
4. The other chamber
If the bill passes the first chamber, it crosses over. The second chamber often passes its own version, with differences. Both versions go to a conference committee, which negotiates a single compromise text that both chambers then re-vote on.
5. The President
The reconciled bill goes to the President's desk. The President can:
- Sign it — the bill becomes law.
- Veto it — Congress can override with a two-thirds vote in both chambers.
- Do nothing for ten days — the bill becomes law without a signature (or dies, if Congress adjourns; this is a "pocket veto").
6. Becoming law
Once enacted, the bill is assigned a public law number (e.g. P.L. 118-42) and codified into the United States Code. The Office of the Federal Register tracks the exact text.
The honest version
The textbook flow above is real, but most bills follow a messier path: reconciliation, omnibus packages, suspension of the rules, motions to table, holds, and unanimous consent agreements all shape the actual outcome. The chamber leadership — Speaker, Majority Leader, the committee chairs — decides what gets a vote and when.
See current congressional leadership →