BBC: Brexit Secretary Dominic Raab has set out what he called “practical and proportionate” advice in case the UK leaves the EU with no deal.
The government has published 148 pages of guidance for people and businesses.
It includes instructions for businesses who could face extra paperwork at borders and contingency plans to avoid medicine shortages.
Ministers say reaching a deal is their top priority but that “short term disruption” is possible without one.
Among the issues raised in the 25 documents is a likely increase in the cost of card payments between the UK and the EU, a plan for the UK to recognise medical devices approved for the EU market to maintain a smooth supply, and the end of free circulation of goods between UK and EU.