B1 - Export or Re-Export Standard Declaration
B2 - Special Procedures - Declaration for Outward Processing
B3 - Declaration for Customs Warehousing of Union goods to claim repayment or remission of export duty
B4 - Declaration for dispatch of goods to a Special Fiscal Territory or Territory with which the EU has formed a Customs Union
C1 C&F - Export or Re-export Simplified Declaration (Regular Use)
C1 B&E - Export Simplified Declaration (on an occasional basis)
C21e - Customs Clearance Request for export inventory release