Short term visas for the Czech Republic are valid for 90 days within a 180 day period. For citizens of EU the blue card serves an equivalent purpose as an employee card does for third country nationals. The blue card provides an easier alternative to the regular working papers system for foreign nationals who fulfill certain requirements regarding professional qualifications and salary. Expats moving to Prague to require up employment got to successfully apply for a piece permit before a long-term employment visa are often issued. the work in question must be placed on the vacancy database compiled by the Czech government by the employer; there are different vacancies for the worker card and for the blue card. Foreigners can apply for a long-term residence permit if they plan on staying quite three months.