LONDON (AP) - The Latest on Brexit (all times local):
8 a.m.
Britain's European Union envoy has arrived at his office in Brussels for a meeting, hours ahead of triggering Brexit.
Tim Barrow has been in Brussels since Tuesday and he is taking part in a routine meeting of ambassadors on Wednesday morning.
Barrow will later take a break from the meeting and hand-deliver a letter signed by Prime Minister Theresa May at around 1130 GMT (7:30 a.m. EDT) to EU Council President Donald Tusk. The letter will formally trigger Brexit.
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7 a.m.
Britain is set to formally file for divorce from the European Union, ending a 44-year relationship following the decision made by U.K. voters in a referendum nine months ago.
Prime Minister Theresa May is due to announce in the House of Commons Wednesday afternoon that she has invoked Article 50 of the EU's key treaty, triggering a two-year countdown to Britain's exit.
At the same time, Britain's EU envoy, Tim Barrow, will hand-deliver a letter from May to EU Council President Donald Tusk.
May's office says she will tell lawmakers that the U.K. is embarking on a "momentous journey" and should unite to forge a "global Britain."
Britain and the EU have two years to unpick a tapestry of rules, regulations and agreements stitched over more than four decades.