Once a bill passes through one House, it must go through the exact same five stages in the other House (e.g., moving from Commons to Lords).
If the second House makes amendments, the bill enters a phase known as 'Ping-Pong', where it travels back and forth until both chambers agree on the exact wording.
The Parliament Acts (1911 and 1949) allow the House of Commons to eventually override the House of Lords if a deadlock persists, reflecting the Commons' democratic supremacy.
Royal Assent is the final stage where the monarch formally signs the bill into law; in modern practice, this is a constitutional formality and is never refused.
| Feature | House of Commons | House of Lords |
|---|---|---|
| Composition | Elected Members (MPs) | Appointed/Hereditary Peers |
| Primary Role | Legislative supremacy and finance | Scrutiny, revision, and delay |
| Financial Power | Exclusive control over 'Money Bills' | Cannot block or amend financial bills |
| Veto Power | Can override the other House | Can only delay legislation for one year |
Scrutiny vs. Efficiency: When evaluating the process, always weigh the benefit of 'detailed scrutiny' (multiple stages) against the 'inefficiency' caused by executive dominance or time constraints.
The 'Ping-Pong' Concept: Be prepared to explain how the two houses resolve differences; emphasize that the Commons usually has the final word due to its democratic mandate.
Common Mistake: Do not assume the monarch 'debates' the bill during Royal Assent; it is a ceremonial step that marks the transition from a 'Bill' to an 'Act'.
Check the Bill Type: If a question asks about backbench influence, focus on Private Members' Bills, but note that they rarely pass without government support.