The wording of this revised withdrawal agreement looks like the United Kingdom and Ireland may make independent arrangements regarding non-European Union Citizens within their Common Travel Area which is a necessary requirement for CANZUK. Northern Ireland, in order to avoid a border with Southern Ireland will continue to have freedom of movement with the European Union.
The United Kingdom and Ireland may continue to make arrangements between themselves relating to the movement of persons between their territories (the ‘Common Travel Area’), while fully respecting the rights of natural persons conferred by Union law.
The United Kingdom shall ensure that the Common Travel Area and the rights and privileges associated therewith can continue to apply without affecting the obligations of Ireland under Union law, in particular with respect to free movement to, from and within Ireland for Union citizens and their family members, irrespective of their nationality.
The revised withdrawal also allows the UK to sign it’s independent trade deals, again a necessary requirement for Brexit and Free Trade between the CANZUK countries.
Northern Ireland is part of the customs territory of the United Kingdom.
Accordingly, nothing in this Protocol shall prevent the United Kingdom from including Northern Ireland in the territorial scope of any agreements it may conclude with third countries, provided that those agreements do not prejudice the application of this Protocol.
In particular, nothing in this Protocol shall prevent the United Kingdom from concluding agreements with a third country that grant goods produced in Northern Ireland preferential access to that country’s market on the same terms as goods produced in other parts of the United Kingdom.
Nothing in this Protocol shall prevent the United Kingdom from including Northern Ireland in the territorial scope of its Schedules of Concessions annexed to the General Agreement on Tariffs and Trade 1994.