Contact the American Citizen Services Unit (ACS)

The American Citizen Services Unit at U.S. Embassy in Sofia is open Monday through Friday, except for American and Bulgarian official holidays.

Emergencies involving American Citizens

24 hours a day: +359 (2) 937-5101

Telephone: +359 (2) 937 5100 (from 8:30 a.m. to 5:00 p.m.)

Emergencies include: death, serious injury, serious illness, criminal assault, arrest, and emergency need for financial assistance.

The American Citizen Services unit provides appointments for passport and notary services only. If you need to visit our office for other services not specified above, please use the Contact Us Form.

For non-emergency inquiries, please send an e-mail to  If your inquiry is of time sensitive nature, we will respond as soon as possible.  For general inquiries you will receive a response within five business days. To expedite the processing of your inquiry use the Contact Us Form.

The American Citizen Services unit may NOT address visa inquiries. For non-immigrant visas, immigrant visas and green card issues, you must contact the visa units:

For questions regarding services provided by the Social Security Administration (SSA), you must contact the SSA Federal Benefits Unit (FBU) in Athens, Greece. 

Postal Address from the U.S.:

Consular Section, Attn: ACS Unit
Department of State
5740 Sofia Place
Washington, DC 20521-5740

Postal Address from outside the U.S.:
U.S. Embassy, Consular Section
Attn: ACS Unit
Ul. Kozyak 16
Sofia 1408, Bulgaria