Speaker John Bercow also confirms that MPs whose Brexit motions have been selected will have until 16:00 GMT to tell him if they do not want to push them to a vote.

House of Commons
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Speaker John Bercow addresses the matter of a third meaningful vote on the prime minister's Brexit deal.

Mr Bercow has previously ruled that a third vote can not be brought to Parliament if it is "substantially the same" as the last vote on the deal.

"In order that there should be no misunderstanding, I do expect the government to meet the test of change," he says.

The government "should not seek to circumvent my ruling", he says.

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Image source, HoC

The Speaker is now addressing the Commons and is outlining that MPs cannot vote 'aye' and 'no' in the same question on the ballot paper, doing so will invalidate it.

The votes will take place between 19:00 and 19:30 GMT.

John Bercow confirms that the ballot papers will be green. Earlier indications were that the ballot papers were pink.

House of Commons
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MPs approve the business motion by 331 to 287, and will now start the main debate on Brexit options.

Speaker John Bercow announces that he has selected the following eight choices:

No Deal (B) – John Baron (Conservative)

Agrees to leave the EU on 12 April without a deal.

Common market 2.0 (D) – Nick Boles (Conservative)

Government joins the European Economic Area (EEA) through the European Free Trade Association (EFTA), and negotiates a temporary customs union until alternative arrangements can be found.

EFTA and EEA (H) – George Eustice (Conservative)

Remains in the European Economic Area (EEA), and applies to re-join the European Free Trade Association (EFTA).

Declines to form a customs union but seeks “agreement on new protocols relating to the Northern Ireland border and agri-food trade”.

Customs union (J) – Ken Clarke (Conservative)

Enshrine the objective to form a customs union in primary legislation.

Labour’s alternative plan (K) – Jeremy Corbyn

Negotiate changes to the withdrawal agreement and the political declaration to secure Labour’s position, and pass these objectives into law.

Revocation to avoid no deal (L) – Joanna Cherry (SNP)

If the Withdrawal (Agreement) Bill has not been passed before exit day, the government will ask MPs to approve no deal. If this does not pass, the government will revoke Article 50.

Confirmatory public vote (M) – Margaret Beckett (Labour)

Government cannot implement or ratify the withdrawal agreement and the political declaration unless and until they have been approved in a referendum.

Contingent preferential arrangements (O) – Marcus Fysh (Conservative)

Malthouse Plan B: The UK makes its budgetary contributions to the EU to the end of 2020 and agrees with the EU a period of two years in which UK goods have full access to the EU.

MPs have supported the arrangements for the indicative vote process by 331 votes to 287, a majority of 44.

ITV News political editor Robert Peston says the fact that the Conservative deputy chairman did not know whipping arrangements in advance was very telling.

House of Commons
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MPs are now voting on the business of the House motion moved by Conservative MP Sir Oliver Letwin.

The motion agrees to MPs taking over parliamentary time this afternoon to hold indicative votes on the alternative options for Brexit.

If MPs vote in favour of the motion, the debate on the alternative options for Brexit will then begin, with indicative votes happening at 19:00 GMT.

The result is expected in about 15 minutes.

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SNP MP Pete Wishart says the UK is in "uncharted territories".

He adds that indicative votes are an option the government could have given MPs, and thanks Sir Oliver Letwin for the work behind his amendment to the motion on Monday.

Mr Wishart says he found Commons leader Andrea Leadsom's statement "petulant" and "irritable".

Brexit has been "an utter disaster", Mr Wishart says, adding: "We can't make a worse job of it than the government has already done."

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Image source, HoC

Conservative MP Jacob Rees-Mogg tells MPs he will oppose this motion.

He describes it as "constitutionally ill-thought through".

"The executive and legislature are different things," he argues.

The World at One
BBC Radio 4

Mark Francois, deputy chairman of the pro-Brexit European Research group, says he thinks the DUP will vote against Theresa May's deal, in which case Jacob Rees-Mogg and most of the ERG will follow suit.

"My understanding is the DUP have made very clear they are not going to vote for the prime minister's deal," he says.

"Jacob Rees-Mogg, my boss as chairman of the ERG, has always said consistently he will not vote contrary to the DUP.

"So, if the DUP hold good to their word, and they're honourable people in my experience, they will vote against the deal.

"Therefore, so will Jacob and, I believe, so will the bulk of the ERG.

"The government want to bring MV3 (meaningful vote three) back tomorrow. They are desperately trying to peel people away in order to facilitate it. At the moment, it's not working."