The Bureau of Consular Affairs (BOCA; ) is the agency of the Ministry of Foreign Affairs of the Republic of China (ROC) which provide passport services, visa services, document authentication and the coordination of emergency assistance to the ROC citizens abroad. Organizational structure Passport Administration Division Visa Division Document Authentication Division Passport Issuing Division Offices of the Secretariat, Accounting, Human Resources and Government Ethics Information Management Unit Congressional Liaison Unit Legal Unit Branch office Taiwan Taoyuan International Airport Transportation The BOCA building is accessible by NTU Hospital Station of the Taipei Metro on the Red Line. References External links Executive Yuan Government of Taiwan Consular affairs