European Council president has said that if UK wants vast access to the 27-member bloc's markets, it will equally have to keep its waters open to EU fishermen.
Britain's chief Brexit minister hailed that as evidence of significant movement from the EU, three days after Prime Minister Boris Johnson declared that the talks were effectively over
Even with a deal, a huge and complex array of systems needs to be in place to ensure European-bound trucks pass EU border checks, they said
On Tuesday, British lawmakers adopted a bill to regulate the UK's internal market from January 1, when Britain will complete its post-Brexit transition period.
The two sides say a deal must be struck by October so it can be approved and ratified before Jan.1.
Britain and the EU jointly promised in the Brexit agreement to ensure there are no customs posts or other obstacles on the Northern Ireland-Ireland border.
Former UK leaders Tony Blair, John Major unite to slam Boris Johnson's 'embarrassing' Brexit strategy
Major, a Conservative prime minister from 1990 to 1997, and Blair, his Labour successor for a decade, said PM Boris Johnson's Internal Market Bill 'questions the very integrity' of the UK.
Johnson reportedly urged the members of parliament (MPs) not to return to the "miserable squabbling" over Europe and support his Internal Market Bill.
Britain's decision to break international law by overwriting part of the EU Withdrawal Agreement has alarmed European leaders and threatens to scuttle already-fragile UK-EU negotiations.
Though the UK left the bloc on January 31, it is in a transition period that effectively sees it abide by EU rules until the end of this year.