If foreign citizens find themselves in Republic of Croatia, it is important that they are familiar with the categories of residence available to non-citizens in Republic of Croatia. Different criteria apply to short-term, temporary, and permanent residence permits, emphasizing qualification conditions, mandatory documentation, and the application procedure for each. The paper explores the process of obtaining a residence and work permit, with a focus on the necessary steps that foreigners must take. He also points out the special criteria that seasonal workers, who have a significant impact on Croatian tourism and agriculture, must meet. Part of the work is focused on clarifying the EU blue card, a specialized residence card intended to attract highly skilled employees from outside the EU to Republic of Croatia and other EU member states. Furthermore, the paper includes a description of the Certificate of Employment Registration, a document of exceptional importance for foreigners on temporary work. It provides a comprehensive overview of the criteria for obtaining a permit and its legal consequences, which is a key reference for understanding the legal structure that regulates noncitizens' residence and employment in Republic of Croatia.