OBS_VALUE: The documents needed for business visas are:1. Application form; 2. Passport (and passport photo); 3. Proof of medical insurance; 4. Proof of means of subsistence during the travel; 5. Employment certificate; 6. Invitation letter (with weekly break up schedule of the program); 7. Proof of actual business relations in Hungary in the form of a letter of reference from the Chamber of Commerce; 8. Pre-arranged accommodation; 9. Airplane ticket. 