The European Union Blue Card Directive applies to highly qualified non-EU citizens wishing to be admitted to the territory of a Member State of the European Union (European Union Common Immigration Policy) for more than three years, with the exception of Denmark, Ireland and months in the UK for employment and residence purposes. The EU Blue Card also enables authorized persons to bring their close family members with them.

The "Blue Card" can be obtained in a one-way process, with which non-EU citizens can apply for a work permit, which is then valid for up to two years and can then be renewed.

The Blue Card confers a range of rights, including favorable rules on family reunification. The proposal also encourages geographical mobility within the EU between different Member States for those who have been granted a blue card.

requirements
In order to be admitted to the EU, the applicant must present:

an employment contract or a binding job offer with a salary of at least 1.5 times the average gross annual salary paid in the Member State;
a valid travel document and, in certain cases, a valid residence permit or long-term national visa;
valid health insurance;
in the case of regulated professions, documents proving that you meet the legal requirements and, in the case of non-regulated professions, documents proving that you have the relevant higher professional qualification.
In addition, the applicant must not pose a threat to public policy from the point of view of the Member State in which he is seeking authorisation.