What the Byrd Rule Actually Does — and How to Navigate It
Congress created the reconciliation process in 1974 to make it easier for the House and Senate to bring existing tax and spending laws into line with the levels set in the annual budget resolution. The process is especially important in the Senate because senators can’t filibuster reconciliation bills. Debate is capped at 20 hours.
The Byrd Rule prevents senators from using reconciliation to bypass the filibuster for legislation that is not truly budgetary. It bars “extraneous” provisions. A provision is considered extraneous if it has no budgetary effect, it is not in the reporting committee’s jurisdiction, its fiscal effects are merely incidental to their policy purpose, it increases the deficit beyond the budget window, or alters Social Security.
If a provision violates the Byrd Rule, a senator may raise a point of order. If sustained, the provision is struck from the bill. A senator may move to waive the rule before the presiding officer rules, but this requires 60 votes.
Terms and Conditions
One way to include policy in reconciliation without violating the Byrd Rule is to make it a term or condition for spending or revenue. Such terms are not extraneous simply because they are policy. If they govern outlays or revenues, they can be included even when the same policy would not pass on its own.
Congress can write those terms into law directly or delegate authority to executive agencies to implement them.
A 1990 example shows how terms and conditions work in practice. The Omnibus Budget Reconciliation Act of 1990 amended the Coastal Zone Management Act of 1972 as part of the reconciliation package. The budget resolution that set up the reconciliation process instructed the Senate Commerce, Science, and Transportation Committee to reduce outlays in programs within its jurisdiction by $232 million in fiscal year 1991. The committee could comply by revising programs under its jurisdiction in whatever combination was necessary to hit its target. The resulting reconciliation bill changed how grants were administered, created new programs, and added eligibility conditions to federal funding, all to accomplish explicit policy goals. Those policy changes were permissible in the reconciliation bill because they were tied to federal spending. The policy was the condition. The funding change was the budgetary effect.
The Three Tests That Matter Most
With this background, three of the Byrd Rule’s six tests become especially important when senators try to use terms and conditions in reconciliation.
The Jurisdiction Test
The terms and conditions must be under a committee’s jurisdiction named in the budget resolution’s reconciliation instructions. A committee may include only terms and conditions for the programs it oversees. It cannot affect programs assigned to another committee, even if those programs have a budget link. Senate Rule XXV governs committee jurisdiction and explains where senators should begin.
Senators can easily pass this test by checking Rule XXV and confirming that the committee with jurisdiction over the policy also received an instruction.
No instruction means no path.
The Budgetary Effects Test
The terms and conditions must be attached to a provision in the underlying reconciliation bill that produces a measurable change in outlays or revenues. In practice, that usually means a Congressional Budget Office score for spending or a Joint Committee on Taxation score for revenues.
If the provision does not have a score, both it and the associated terms and conditions become vulnerable to a Byrd Rule point of order.
The Merely Incidental Test
Even if terms and conditions pass the Byrd Rule’s jurisdiction and budgetary effect tests, senators can still strike them on the floor if the budgetary effects of the provision to which they are attached are “merely incidental” to their policy effects.
This is the hardest test because the Byrd Rule does not define ‘merely incidental.’ The presiding officer rules on these points, usually relying on the parliamentarian’s advice and past Senate practice.
This makes the test difficult. Reconciliation is for changing laws to affect spending and revenue. A scored provision meets this goal. But the 'merely incidental' test asks if the fiscal effect is primary or just a byproduct of broader policy.
A terms-and-conditions strategy works best when the policy change can be framed as necessary to ensure that the federal government spends or raises money in the way the reconciliation bill requires during the budget window.
Strategy Shapes Outcomes
In 2017, Senate Republicans tried to use reconciliation to repeal major Affordable Care Act insurance regulations. The parliamentarian reportedly concluded that the regulations affected roughly 320 million people, while the exchange subsidies tied to them affected only about 10.5 million. Given the disparity in the number of people affected, the parliamentarian concluded that the policy effect of repealing the subsidies outweighed its budgetary effects, because doing so would affect people who didn’t receive subsidies.
At the time, Republicans argued the subsidies created a budgetary hook. They framed the question to prompt a direct ruling on the 'merely incidental' test. That was a mistake; it allowed for a clean rejection. Senators then chose to defer rather than overrule the parliamentarian.
A better approach would focus on the budgetary effects of repealing the subsidies and argue that the related policy changes are necessary to achieve the fiscal outcome required by the reconciliation instructions. In other words, do not ask whether the policy is important. Ask whether the policy change is necessary to produce the budgetary result the committee was instructed to achieve.
In ambiguous questions about a provision’s policy or budget weight, senators should not treat private parliamentarian guidance as a binding Senate rule or precedent. It is not. The Constitution grants senators the power to determine the rules for their debates (Article I, section 5, clause 2). Formal Senate precedent consists of actions the Senate actually takes. The parliamentarian advises senators on how rules and precedents apply to specific situations. However, the presiding officer decides questions of order. The full Senate has the final word if a senator appeals the presiding officer’s decision.
In practice, senators almost always follow parliamentarian guidance. This is why strategy is critical. Success in the 'merely incidental' test often depends on how provisions are drafted and the question is framed.
Building a Strategy That Works
Because of this, a successful terms-and-conditions strategy must begin early and account for every stage of the reconciliation process.
The Budget Resolution
The first hurdle is the budget resolution itself.
Senators need to do two things at this stage of the process. First, they need to ensure the resolution provides reconciliation instructions to the committee with jurisdiction over the policy they want to include. Without an instruction, there is no basis for including the provision in a reconciliation bill.
Second, senators should consider reserve funds, which can help committees maneuver when writing their titles. Any senator may propose a reserve fund amendment. This flexibility helps committees meet instructions without triggering other budget points of order.
The Reconciliation Bill
After Congress approves a budget resolution with reconciliation instructions, the instructed committees begin drafting their respective reconciliation titles.
It is almost always better to include a provision in the base text of a reconciliation bill rather than offer it as a floor amendment. Provisions in the base bill are scored with a larger title, not on their own. A senator can still challenge a provision with a Byrd Rule point of order, but the bill’s overall structure can offer procedural defenses. A floor amendment stands on its own and is more vulnerable to a Byrd Rule challenge.
Section 313(c) of the 1974 Budget Act requires the Senate Budget Committee to identify allegedly extraneous provisions before floor consideration and to print that list in the Congressional Record. That list matters, but it is not controlling. The statute is explicit that inclusion on the list, or omission from it, does not constitute a ruling of the chair. Only the presiding officer, subject to appeal to the full Senate, can determine whether a provision violates the Byrd Rule.
The base-bill strategy has two phases.
The first phase is procedural. Senators should have the Congressional Budget Office (CBO) or the Joint Committee on Taxation (JCT) score the provision. And they should identify every possible point of order that could lie against it. Having done so, senators should then find analogous precedents demonstrating that the provision is Byrd-compliant. By raising the procedural case early, senators make it more likely that any objections to the provision are adjudicated on political grounds rather than procedural grounds.
The second phase is political. Senators should focus on coalition building, public messaging, and persuading their colleagues to support the provision. But this works only if senators have already made the procedural case – or at least demonstrated that it is an open question. If a provision is still struggling to establish its procedural legitimacy just before floor consideration, it is already in danger. This is because senators like to blame the rules for why they can’t pass something, rather than opposing the policy on the merits.
The Takeaway
The Byrd Rule is not necessarily a precise prohibition on what can be included in a reconciliation bill. Senators who treat it as one usually lose — not because the rule forbids what they want to do, but because they let the procedural argument get ahead of the political one. The rule's most consequential test, the "merely incidental" standard, is subjective by design. That means the outcome depends less on the merits of a particular policy argument than on when senators start making it, how they frame it, and whether they have built enough support among their colleagues that the parliamentarian's informal guidance becomes moot. Senators can advance policy in a reconciliation bill by drafting it carefully and scoring it early. They should make the procedural case that the policy is required to achieve the budgetary effects within the reconciliation bill’s window. And they should never invite a clean ruling on a question they haven't already won.