In the U.S. Congress, a conference report is the final, reconciled version of a bill produced by a conference committee made up of negotiators (called "managers") from both the House and Senate. Adoption is the formal vote by each chamber to accept that reconciled text. Because the House and Senate frequently pass differing versions of the same legislation, a conference report resolves the discrepancies into a single document that, once adopted by both chambers, is sent to the President for signature or veto.
Several procedural features distinguish conference report adoption from ordinary bill passage:
- Not amendable. Under House and Senate rules, a conference report must be voted up or down as a whole; members cannot offer amendments on the floor.
- Privileged status. Conference reports are generally privileged for floor consideration, allowing them to bypass normal scheduling hurdles.
- Layover requirements. Both chambers impose waiting periods (for example, the Senate's Rule XXVIII and the House's three-day availability rule under Rule XXII) so members can read the text before voting, though these are sometimes waived by unanimous consent or a special rule.
- Joint explanatory statement. The report is accompanied by a statement from the managers explaining how differences were resolved, which courts and agencies often consult as legislative history.
If either chamber rejects the conference report, the bill typically returns to conference, dies, or is handled through an alternative "amendments between the houses" (ping-pong) process. Since the 1990s, formal conference committees have become less common, with leadership-driven negotiations and ping-pong increasingly substituting for them, but conference reports remain the traditional vehicle for major legislation such as annual appropriations packages and the National Defense Authorization Act.
Once adopted by both chambers, the measure is enrolled, signed by the Speaker and the President pro tempore (or their designees), and presented to the President under Article I, Section 7 of the Constitution.
Example
In December 2022, the House and Senate adopted the conference report on the FY2023 National Defense Authorization Act, clearing the $858 billion measure for President Biden's signature.
Frequently asked questions
No. Under both House and Senate rules, a conference report must be voted on as a complete package; members cannot propose amendments to it.
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