GATS Modes of Supply
MODE-I : Cross-border supply is defined to cover services flows from the territory of one Member into the territory of another Member (e.g. banking or architectural services transmitted via telecommunications or mail);
MODE-II: Consumption abroad refers to situations where a service consumer (e.g. tourist or patient) moves into another Member’s territory to obtain a service;
MODE-III: Commercial presence implies that a service supplier of one Member establishes a territorial presence, including through ownership or lease of premises, in another Member’s territory to provide a service (e.g. domestic subsidiaries of foreign insurance companies or hotel chains); and
MODE-IV: Presence of natural persons consists of persons of one Member entering the territory of another Member to supply a service (e.g. accountants, doctors or teachers). The Annex on Movement of Natural Persons specifies, however, that Members remain free to operate measures regarding citizenship, residence or access to the employment market on a permanent basis.