Since 2010, the EU Visa Code has been the binding legal basis for all countries implementing the Schengen acquis for issuing visas for short-term stays of 90 days or less in the Schengen Area or for transit through the Schengen Area. It establishes the legal requirements for the issuance of visas and the requirements relating to the implementation of the visa procedure.
Source: touring artists Visa - residence, Summaries of EU legislation, edited