The other 27 member states have also agreed to consider an extension to the transition period if more time is needed to conclude the free trade accord, which both sides say they want to have in place and working by January 2021.
Commentators have described the intervention as a "declaration of war" by MPs anxious about the government keeping the United Kingdom tied to Customs Union and EU rules, and thereby not maximizing the opportunities of Brexit.
Arch-Brexiteer Jacob Rees Mogg made the comments as he tried to skewer the Government over its divorce plans.
EU Chief Brexit negotiator Michel Barnier recently said the transition should not need to go beyond 31 December 2020.More news: WWE Royal Rumble 2018
The guidance, obtained by Channel 4 News, says any changes to the European Union "acquis" - the accumulated body of case law and legislation - should "automatically" apply to Britain during the transition, even though it will have no say in the decision-making process.
In Brussels, it is clear that a transitional period means retaining the status quo for an additional two-year period, with London becoming a "rule taker" rather than engaging in decision-making processes. Download The for your device.in English and other languages.
During internal discussions in Brussels, several nations, including Hungary, Sweden and Ireland, lobbied for a more flexible approach to the length of the transition phase than the one finalised by diplomats this week, three people familiar with the talks said.
EU Economic Affairs Commissioner Pierre Moscovici said Cameron's hot mic moment was "not inspiring, because I truly believe that Brexit is not a good thing".
Theresa May has bowed to pressure from Eurosceptic MPs and disowned remarks by the chancellor, Philip Hammond, as she struggled to quell a fresh Tory revolt over Brexit that could threaten her leadership, The Guardian writes.
But he added: "If the Conservative Party doesn't deliver the Brexit that the British people voted for, the Conservatives will not win the next election".More news: Five people killed in shooting at Pennsylvania auto wash
Bossert said Thursday it would be a "terrible outcome" if Turkish troops clashed with "the proxy forces that we have all been relying on to defeat ISIS, especially if there are USA advisers in the region".
Britain is due to leave the European Union next year and government ministers have previously insisted that Britain would sign up to 40 free trade deals with non-EU countries "the second after midnight" on March 2019.
Rees-Mogg asked Davis.
Only minutes into his visit to the World Economic Forum in Davos, US President Donald Trump heaped praise on Prime Minister Theresa May after months of tension in the "special relationship".
These can not be described as "very modest changes", the person said, speaking on condition of anonymity because the subject is sensitive.
After winning the June 2016 referendum, many Brexit or Leave campaigners feel they are losing ground to voices questioning the meaning of the vote, a debate which has deepened divisions and prompted some to predict a "Brexit betrayal".More news: United Nations hosts fresh Syria talks in Vienna