Brexit Secretary Dominic Raab has set out what he called “practical and proportionate” advice in case the UK leaves the EU without a deal.
The guidance includes instructions for businesses who could face extra paperwork at borders and contingency plans to avoid medicine shortages.
Britons visiting the EU could also face extra credit card charges.
Ministers say a deal is the most likely outcome but that “short-term disruption” is possible without one.
BBC political correspondent Chris Mason described the publication as a “vast swirling porridge of detail – much of it at a technical level, advising individual industries about the manner in which they are regulated in the event of a no-deal Brexit”.
In the 24 documents, which cover industries including medicine, finance and farming, it says:
The cost of card payments between the UK and EU will “likely increase” and won’t be covered by a ban on surcharges