An employer can only employ a third-country national who:

• holds a Blue Card of the European Union,
• has been granted a temporary residence for employment based on confirmation of the possibility of filling a vacant job position,
• holds a work permit and has been granted temporary residence for employment, as specified in Act No. 404/2011 Coll. on the Stay of Foreigners and amendments to certain laws, unless the law provides otherwise,
• holds a work permit and has been granted temporary residence for family reunification,
• holds a work permit and has been granted temporary residence as a third-country national who has been granted long-term resident status in a European Union member state, unless otherwise stipulated by the law on the stay of foreigners, or
• does not require confirmation of the possibility to fill a vacant job position, holds a work permit corresponding to highly qualified employment, a confirmation of the possibility to fill a vacant job position and a work permit.