UK MPs will vote later (approx 1430G) on the Withdrawal Agreement which would take Britain out of the EU.
It's been separated from the Political Declaration part of Prime Minister Theresa May's deal with Brussels.
She says voting in favour of the divorce terms later is crucial to ensuring Britain doesn't need a lengthy Brexit delay.
Mrs May's considered unlikely to win the vote, which opposition Labour says is 'desperate'.
UK correspondent Olly Barratt says it's yet another important moment in the process.
In: 'It's being...
Out: ...at all."
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UK correspondent Olly Barratt says the terms of Mrs May's departure as Prime Minister are also in doubt.
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Out: ...delivered."
Dur: 41 seconds