Bulgaria - Customs RegulationsBulgaria - Customs Regulations
U.S. exporters should consult the Bulgarian Customs Agency and other sections of this Country Commercial Guide to include: 
                
            - https://customs.bg/wps/portal/agency-en/hom
 - https://www.visahq.com/bulgaria/customs/
 - http://psc.egov.bg/en/psc-customs-and-excise-duties