It seems that there is a healthy degree of confusion regarding what this treaty actually does. I would refer the Senate to Article IV, Section 1 of the agreement:
This clause allows subjects of the UK to travel freely to and from Atlasia. That's it. As Senator Scott duly notes, this is no more liberal than the agreement that existed between Canada and this Republic prior to the adoption of the Fourth Constitution, which was never shown to have compromised national security or the integrity of our borders. It does not apply to persons who are not British subjects and/or Atlasian citizens, and it does not eliminate the passport requirement; in this sense, it is considerably more
conservative than the ACCMA.
Senator Blair raises valid questions regarding the discordant customs systems of the presumed signatories and the status of EU nationals living in the UK; so valid are these questions, in fact, that they are actually addressed in the body of the treaty. I refer the Senate to Article IV, Section 2
and, in turn, to Article VIII, Section 2
In summary, there is already established in this treaty a provision by which the customs systems of the signatories may be reconciled; furthermore, the treaty will not take effect until after Britain has formally withdrawn from the EU, eliminating any ambiguity regarding their status under this treaty. I would further note that, should either of these processes be resolved in a way that is not favorable to Atlasia, we reserve the right to withdraw from the common market according to the provisions of Article VII.