Britain has begun publishing its guidance for a no-deal Brexit. Namely, the possible circumstance in which Britain withdraws from the European Union on March 29, 2019 without a framework deal with the E.U. for future relations.

And it’s clear the British government has been planning extensively for months now about just what a no-deal Brexit might mean. In a series of documents released on Thursday, the government explained how a no-deal Brexit would likely lead to financial fees for U.K.-European Union financial transactions, increased customs compliance costs, and a number of other challenges. Yet, the government also notes that it has stockpiled medicines to avoid any critical challenges.