Schengen Visa Categories
Here are the basic differences between the three Schengen visa categories (A, C, D).
Overview of Visa Categories
Category A: Airport Transit Visa
The airport transit visa entitles to one stay in the transit area of the airport. It is needed for a stopover involving a change of terminal.
Category B: Transit Visa (Overland)
Category C: Short-Term Visa
The Schengen category C visa can be issued for a validity period ranging from a few days to as long as 5 years.
Category D: long-term “National Visa”
A national visa (D) may be extended if the reason for the stay so requires. The application for renewal must necessarily be made before expiry of the original visa at the local immigration office.