The UK is seeking to guarantee "frictionless" trade on day one after Brexit, the first of the government's position papers published today reveals.
The Department for Exiting the EU (Dexeu) has set out four key aims for goods on the market, ahead of the next round of talks.
"These four principles demonstrate that the UK is getting on with the job of negotiating," the department said.
"Taken together, they would prevent bureaucracy and unnecessary duplication of effort by business, or restricted supply of certain products to consumers, which might otherwise occur."
Dexeu said it was seeking urgent clarity for businesses on both sides, noting the EU exports goods worth €314bn (£257bn) to the UK, more than to Brazil, Russia, India and China combined.
However earlier in the day, Slovenian Prime Minister Miro Cerar said it was a virtual certainty that trade talks cannot begin this autumn because there had been insufficient progress in negotiations so far.
The second paper, regarding confidentiality and access to documents, noted a reciprocal framework must be established to maintain current standards.
Brexit secretary David Davis said:“These papers will help give businesses and consumers certainty and confidence in the UK's status as an economic powerhouse after we have left the EU.”
“They also show that as we enter the third round of negotiations, it is clear our separation from the EU and future relationship are inextricably linked.
“We have already begun to set out what we would like to see from a future relationship on issues such as customs and are ready to begin a formal dialogue on this and other issues."