The Withdrawal Agreement also provides for the United Kingdom to leave the Convention on the Statute for the European Schools, with the United Kingdom being bound by the Convention and the accompanying rules on accredited European Schools until the end of the last academic year of the transition period.dem, i.e. at the end of the 2020-2021 spring semester.  In the absence of an agreement, they will have to resort to World Trade Organization rules, which will lead to new tariffs, border controls and other barriers to trade. Do you want more analysis from POLITICO? POLITICO Pro is our premium news service for professionals. From financial services to commerce, technology, cybersecurity and more, Pro provides real-time insights, deep insights, and revolutionary scoops you need to get a head start. Send an email to [email protected] to request a free trial. The treaty, ratified in January in British law, was “agreed at a pace” “in the most difficult political circumstances” to “implement a decision of the British people,” the spokesman said, adding that Mr Johnson had signed the withdrawal agreement “assuming that subsequent agreements could be reached to clarify these aspects”. The Withdrawal Agreement provides for a transitional period until 31 December 2020, during which the United Kingdom will remain in the internal market to ensure the smooth running of trade until a long-term relationship is agreed. . . .