I must ask for information about air freight shipping to Bulgaria. Please include this information with the point of origin of Mexico City, Mexico. Yes, this shipment must travel a long way. This is why I want to obtain information before I ship the package so that everything is completed according to the accepted shipping standards. Is there any certain packaging that I must use to pack the items I am shipping? I was not certain if the packaging was different between shipping by air carrier and shipping by ground. What about the labeling? Is there any special kind of labeling that I must add to the package? Must the customs declarations be included on the exterior of the package? Do I give you a copy of the customs paperwork when you pickup the package? Will you notify me when our shipment has cleared Bulgaria's customs? Thanks for sending me this information.