Last week’s opposition day debate in the House of Commons about Gaza and Israel was overshadowed by a bitter procedural row over the Speaker’s selection of amendments. But the rules governing opposition days – and their role in allowing these arguments – are not straightforward. Tom Fleming discusses the procedural background and implications.

The background

Last week saw a House of Commons debate about a ceasefire in Gaza and Israel overshadowed by a bad-tempered row about the Speaker, Lindsay Hoyle, selecting an amendment from the Labour Party.

This debate came on an ‘opposition day’. There are 20 such days in each parliamentary session, when MPs can debate motions put forward by opposition parties rather than by the government. Of these, 17 are allocated to the largest opposition party in the Commons (currently Labour), and three to the next-largest, which is currently the Scottish National Party (SNP). Last Wednesday’s debate was on an SNP motion calling for ‘an immediate ceasefire in Gaza and Israel’.

Usually when the House debates motions, MPs can propose amendments to them in advance, and the Speaker selects which of those amendments will be debated. MPs then vote on the selected amendments before voting on the final motion (incorporating any successful amendments).

If this usual practice were followed on opposition days, it could mean opposition parties’ proposals regularly not getting voted on. This is because any government amendment is highly likely to pass, after which MPs would only be able to vote on the amended motion, not the original proposal. In acknowledgement of this, government amendments on opposition days are voted on after the main motion. In contrast, any non-government amendment selected would be voted on before the main motion. But it is a long-established convention that when a government amendment has been selected, no further amendments are chosen.