Government · Chapter 03
How does a bill become law?
A bill must pass both the House and the Senate in the same form, then be signed by the President — or have a presidential veto overridden by two-thirds of both chambers.
Plain English
What it actually means
A bill is a written proposal for a new law or for changing an existing one. Most bills go through a similar path before they can become law.
Breakdown
1. Introduction
A member of the House or Senate introduces the bill. It gets assigned a number and sent to a committee that focuses on that topic.
2. Committee review
The committee studies the bill, holds hearings, and can amend it. Many bills never make it past this step.
3. Floor debate and vote
If the committee advances the bill, the full chamber debates it and votes. The bill must pass with a simple majority.
4. The other chamber
The other chamber (House or Senate) goes through the same steps. If both chambers pass different versions, a conference committee reconciles them and both chambers must vote on the final text.
5. The President
The President can sign the bill into law, veto it, or take no action. A veto can be overridden if two-thirds of both the House and Senate vote to do so.
Why this matters when voting
Voters often hear that a candidate “will pass” a specific law. In reality, no single member of Congress can pass a law alone. Understanding this process helps you judge what is actually achievable in an office.
Common questions
Follow-up questions
- What is a pocket veto?
- If the President takes no action on a bill for 10 days while Congress is adjourned, the bill does not become law. This is called a pocket veto.
- Do state legislatures work the same way?
- The basic shape is similar — committee, both chambers, then the governor — but specifics vary by state. Nebraska, for example, has only one legislative chamber.
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Keep exploring
Sources
Where this information comes from
Last updated May 10, 2026. Civic Basics chapters cite official .gov sources where possible and are reviewed for neutrality.
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Federal vs State vs Local government