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Markup: Where a Bill Actually Gets Written

A markup is the meeting where a committee goes through a bill, debates amendments, and votes on them. It is the stage where a bill's text is most likely to change substantially — and one of the strongest signals that a bill is being taken seriously.

Part of the Bill Explainer plain-language guide to Congress · last reviewed September 18, 2026

On a bill's history you may see:

Committee Consideration and Mark-up Session Held.

A markup is a working meeting. The committee takes a specific piece of text, works through it, offers amendments, debates them, and votes on them one at a time. The name comes from the old practice of literally marking up a printed draft with the changes.

If you only track one kind of committee action, track this one. Referral is automatic and hearings are relatively cheap to hold; a markup consumes a lot of a committee's scarce meeting time and forces members to take recorded positions on specific amendments. Committees do not generally schedule markups for bills they intend to abandon.

What gets marked up

Often it is not the introduced bill. Committees frequently start from a "chairman's mark" — a revised draft prepared by the chair, sometimes after weeks of negotiation with the ranking minority member and with individual members whose votes are in doubt. The introduced bill may be the starting point for those negotiations rather than the document on the table.

You will also often see the committee adopt an "amendment in the nature of a substitute," which is an amendment that replaces the entire text of the bill with new text. This sounds dramatic and is completely routine. It is simply the cleanest way to adopt an accumulated set of negotiated changes in one vote rather than dozens.

The practical consequence for a reader: after a markup, the bill text you read last month may no longer be the bill. Always check which version you are looking at.

How the meeting runs

Procedures vary by committee, but the shape is consistent. The chair calls up the measure. Members offer amendments in some order set by the committee's rules and practice. Each amendment is debated under time limits and then disposed of — agreed to, rejected, or withdrawn. Voice votes are common for uncontroversial changes; any member can generally demand a recorded vote on a contested one.

Markups are ordinarily open to the public, and most committees now livestream them. The recorded amendment votes are frequently more revealing than the final vote, because they show where individual members actually stand on the specific contested pieces rather than on the package as a whole.

Subcommittee then full committee

A bill may be marked up twice: first in the subcommittee of jurisdiction, then again in the full committee, which can accept, change or discard the subcommittee's work. Some committees skip the subcommittee stage for major or time-sensitive bills. Neither pattern signals anything about the bill's prospects on its own.

What happens at the end

A markup usually concludes with a vote on whether to report the bill to the full chamber. If that vote succeeds, you will see an action like "Ordered to be Reported (Amended) by Voice Vote," and the bill moves from the committee's hands toward the floor.

It is also entirely possible for a markup to happen and for nothing further to follow. A committee can mark up a bill, report it, and watch it sit on a calendar for the remainder of the Congress. Markup is a strong signal, not a guarantee.

Related explainers

Referred to the Committee on… — The bill has been assigned to the committee with jurisdiction over its subject. This is a routine, near-automatic step that happens to essentially every bill — and it is where the large majority of bills quietly stop. Ordered to be reported — The committee has voted to send the bill to the full chamber. "Ordered to be reported" is the vote; "reported" is the paperwork actually being filed, usually with a written committee report a few days or weeks later. How a bill becomes a law — A bill has to clear the same set of gates in order: introduction, committee, floor vote in the first chamber, the whole thing again in the second chamber, identical text in both, and then the President. Most bills never get past the second gate.

Sources

These are the authoritative, nonpartisan references behind this explainer. All are free to the public, and all go into far more detail than we do.

How this explainer was written

This page was drafted with AI assistance and checked against the sources listed above. We are transparent about that for the same reason we disclose it on every bill summary: you should know where the words came from before you decide how much weight to give them. Congressional procedure has a great many exceptions, and where practice is genuinely contested we have tried to say so rather than tidy it up. For anything that matters, go to Congress.gov. More on how this site uses AI and where its limits are.

See it in a real bill

Vocabulary sticks faster against a live example. Search for a bill and read its action history, or browse legislation that has moved recently in the House and Senate.