Amendment Number

In Model UN procedure, an amendment number is the sequential label (e.g., "Amendment 1.1" or "Amendment to Draft Resolution 1.2") that the dais or chair assigns to a written proposal modifying a draft resolution. Amendments are typically numbered in the order they are formally submitted and approved for circulation, allowing delegates, the dais, and rapporteurs to refer to them unambiguously during debate and voting.

Most MUN rulebooks distinguish between two categories:

• Friendly amendments, which all original signatories of the draft resolution accept and which are incorporated into the text without a vote.
• Unfriendly amendments, which at least one sponsor opposes; these require a substantive vote by the committee.

The amendment number usually pairs the draft resolution number with an amendment index. For example, if a committee is considering Draft Resolution 1.2, amendments to it might be labeled 1.2.a, 1.2.b, or simply Amendment 1, Amendment 2, depending on the conference's rules of procedure. Conferences using THIMUN, UNA-USA, or Harvard-style rules each apply slightly different conventions, but the underlying purpose is the same: to create a clean record for voting procedure.

When the committee moves into voting bloc, the chair calls each unfriendly amendment by its number, debate is held (often with time for and against), and the body votes before the amended draft resolution itself is put to a final vote. Amendments are generally voted on in the order submitted, though some rules allow voting in reverse order of submission or by "most disruptive first."

Accurate use of amendment numbers matters for the rapporteur's report, for delegates citing prior changes in speeches, and for ensuring that the final adopted text reflects exactly which modifications passed. Misnumbering or skipping an amendment can invalidate a vote and force the dais to revisit the question.