A "Short-term stay" is a stay of maximum 90 days per six-month period, starting the date of the first entry on the territory.
Examples: visiting family or friends, a tourist visit, a transit through the Schengen area, a business visit, sports and culture, short traineeship, medical treatment, ...
EU citizens and their family members
Appendix 3 ter (declaration of presence)
EU citizens or members of their family must report to the municipality within 10 days of arrival. They will receive a Appendix 3 ter valid for the duration of their stay or for a maximum of 3 months. This document can not be extended.
Documents required: ID card or valid passport
Appendix 3 (declaration of arrival)
Unless non-EU citizens are staying in a hotel / hospital / boarding house or prison, they must report to the municipality within 3 days of arrival. They will receive a Appendix 3 valid for the duration of their stay or for a maximum of 3 months. This document can be extended in exceptional cases (illness, family visit, etc.)
Documents required: ID card or valid passport + Visa C (depending on their nationality)
The status of non-EU nationals residing for a short period in one of the Schengen countries is determined by the Schengen Agreement. In practice, the agreement means that the holder of a Schengen visa, issued by a Schengen country, can travel without restrictions through all Schengen countries during the period of validity of the visa (for a maximum of three months). Please note that the visa obligation has been abolished for some nationalities by a number of Schengen countries. Foreigners who do not require a Schengen visa, can only travel freely through Schengen countries up to a maximum of 90 days per six-month period (the non-EU citizen must be able to prove that this deadline is not exceeded).