Air cargo:
Air cargo tracking:
Information about flights via Sofia Aiport:
Customs
Bank accounts of customs offices:
Currency rates for customs purposes:
Glossary of most frequently used terms:
Customs tariffs:
Incoterms:
http://www.paragraf22.com/pravo/mrejim/INCOTRMS2000/BG/descript.htm
Tracking of LCL cargo:
https://mpower.maersk-logistics.com/spotsearch.cfm
Container sizes:
http://www.foreign-trade.com/reference/ocean.cfm