# How a Bill Becomes Law
The honest version of the civics-class flowchart — the full path from idea to Public Law, including the parts *Schoolhouse Rock* left out: the committee graveyard where roughly nine in ten bills die, the Rules Committee gatekeeping and the informal [[Hastert Rule]] in the House, the [[Filibuster]] and its 60-vote cloture threshold in the Senate, the [[Reconciliation]] bypass that carries most major modern legislation, ping-pong replacing the [[Conference Committee]], and the veto/override/[[Pocket Veto]] endgame. Structure as of mid-2026 (119th Congress); this is pure process — no officeholders to go stale.
Sibling maps: [[Congressional Committees Tree]] shows *who* runs the committee stage; the appropriations pipeline map (queued) shows what happens to the money after a bill becomes law.
> [!note] How to read this chart
> `──▶` = the main path · `└─▶` = a branch or bypass · `◇` = a decision point · `✕` = the bill dies · `★` = becomes law. Vote thresholds are given at each gate (218 = House majority, 60 = Senate cloture, 51 = Senate simple majority, ⅔ = veto override). Everything inside the fence is plain text; linked entities appear in the prose and See also.
```
HOW A BILL BECOMES LAW — THE HONEST VERSION (119th Congress, mid-2026)
│ Legend: ──▶ main path └─▶ branch ◇ decision ✕ bill dies ★ becomes law
│
■ 0. IDEA / DRAFTING
│ Anyone can draft — a member, the White House, an agency, a lobbyist, a model-bill
│ mill — but only a MEMBER of Congress can introduce.
│
├─◆ 1. INTRODUCTION
│ House: dropped in the hopper (H.R. ###) · Senate: recognized on the floor (S. ###)
│ └─▶ referred by the parliamentarian to the committee(s) of jurisdiction
│
├─◆ 2. COMMITTEE — the graveyard (~90% of bills die here)
│ ├─ subcommittee referral ──▶ hearings ──▶ markup (amendments) ──▶ committee vote
│ ├─ ◇ reported out? ──no──▶ ✕ dies in committee (the most common fate of any bill)
│ │ └─▶ House rescue: discharge petition — 218 signatures force floor action (rare)
│ └─ yes ──▶ placed on the calendar
│
├─◆ 3. FLOOR — FIRST CHAMBER
│ ├─ HOUSE path
│ │ ├─ Rules Committee writes the "rule": debate time + which amendments are
│ │ │ allowed — the majority's gatekeeper (most major bills get closed rules)
│ │ ├─ debate ──▶ amendments (if allowed) ──▶ ◇ simple majority? (218 of 435)
│ │ │ ├─ yes ──▶ sent to the other chamber └─ no ──▶ ✕ dies
│ │ └─ [informal Hastert Rule: the Speaker may deny floor time to anything
│ │ lacking a "majority of the majority" — a party veto found nowhere in law]
│ └─ SENATE path
│ ├─ ◇ unanimous consent? ──yes──▶ swift passage (routine bills only)
│ ├─ ◇ filibuster threatened? ──yes──▶ cloture required: 60 votes to end debate
│ │ └─ no 60 ──▶ ✕ dies (the de facto 60-vote Senate)
│ ├─ └─▶ bypass: BUDGET RECONCILIATION — 51 votes, budget-related content only;
│ │ the Byrd Rule strips "extraneous" provisions (the parliamentarian rules);
│ │ the path of most major modern legislation (tax bills, BBB, ACA fights)
│ └─ passage: simple majority — 51, or 50 + the Vice President's tiebreaker
│
├─◆ 4. THE OTHER CHAMBER — repeat steps 1–3 in full
│ ◇ passed IDENTICAL text? ──yes──▶ step 6 (enrollment & presentment)
│ └─ no ──▶ step 5 (resolving differences)
│
├─◆ 5. RESOLVING DIFFERENCES
│ ├─ conference committee: negotiators from both chambers ──▶ conference report ──▶
│ │ both chambers vote again on the report as-is (no further amendments)
│ └─ "ping-pong": the chambers volley amended versions until one accepts the
│ other's text outright — now the norm; formal conferences have grown rare
│
├─◆ 6. THE PRESIDENT (presentment — Art. I, § 7)
│ ├─ ◇ signs? ──yes──▶ ★ LAW
│ ├─ ◇ vetoes? ──▶ returned with objections ──▶ override needs ⅔ of BOTH chambers
│ │ ├─ override succeeds (290 House + 67 Senate) ──▶ ★ LAW over the veto (rare)
│ │ └─ override fails ──▶ ✕ dies (~93% of vetoes stick)
│ ├─ does nothing + Congress IN session ──▶ after 10 days (Sundays excepted) ──▶
│ │ ★ LAW without signature
│ └─ does nothing + Congress ADJOURNED ──▶ ✕ POCKET VETO — no override possible
│
└─◆ 7. LAW — AND THE REAL FIGHT BEGINS
assigned a Public Law number (P.L. 119-###) ──▶ published (Statutes at Large) ──▶
codified into the U.S. Code
└─▶ authorization ≠ money: the bill still needs APPROPRIATIONS to be funded,
agencies must write implementing RULES, and the courts get the last word —
see the appropriations and rulemaking maps (both queued in this series).
```
## Notes
- **The committee graveyard is the headline.** Roughly 90% of introduced bills never emerge from committee — death by inaction, no vote required. The [[Discharge Petition]] (218 House signatures) is the only member-driven rescue, and leadership pressure makes signatures costly; successful discharges are generational events.
- **The [[Hastert Rule]] is not a rule.** It is an informal Speaker practice — refusing floor time to bills lacking majority support *within the majority party* — and it functions as a party veto over measures that could pass the whole House with bipartisan votes.
- **[[Reconciliation]] is the modern main line, not the exception.** Because the 60-vote cloture threshold makes ordinary lawmaking supermajoritarian, most consequential fiscal legislation of the last two decades — including the 2025 [[Big Beautiful Bill]] — has moved by 51-vote reconciliation, with the Senate parliamentarian's Byrd Rule rulings deciding what survives.
- **Ping-pong has largely replaced the [[Conference Committee]].** Leadership-negotiated amendment exchanges between chambers now settle most differences; formal conferences, once standard for major bills, are increasingly rare.
- **The [[Pocket Veto]] is the only absolute veto.** A return veto can be overridden by ⅔ of both chambers; a pocket veto — inaction while Congress stands adjourned — cannot, which makes end-of-session timing a presidential weapon.
- No current officeholders appear in this map; it will not go stale with personnel changes. Chamber-control context (119th Congress) matters only to who operates the gates, not to the gates themselves.
## See also
- [[Congress Hub]] — the legislative-branch spine this map hangs from
- [[Congressional Committees Tree]] — who runs the committee stage (chairs and ranking members)
- [[Filibuster]] — the 60-vote gate in step 3, and its minority-rule history
- [[Reconciliation]] — the 51-vote bypass and the Byrd Rule
- [[Appropriations Process]] — what happens to the money after step 7
- [[Federal Budget Process]] — the wider fiscal calendar this feeds into
- [[Committees Hub]] — index of tracked committees with jurisdictions
- [[Executive Branch Org Chart]] · [[Federal Judiciary Tree]] — sibling maps in this series
- [[Legislative Agencies Hub]] — CBO scoring and CRS analysis feed steps 2–3