Category A is open to students who are not nationals of an EU country, Iceland, Norway or Lichtenstein. Students cannot be residents of these countries nor have carried out their main activity (studies, training or work) for more than a total of 12 months over the last five years in any of these countries.
Category B is available to all applicants that do not meet the criteria for Category A (this includes all nationals of the European Union, Iceland, Norway and Lichtenstein, as well as, people who have spent more than a total of 12 months in the EU over the last five years).
- See more at: http://www.sams.ac.uk/erasmus-master-aquaculture#sthash.X8X1tHwo.dpuf