C-TIR-Inhaber
CARDS
Carnet ATA
Carnet CPD
Carnet de Passages
Carnet-TIR
CAT
CCI
CCL
CCN/CSI
CD
CD-CDS
CDA
CDA-CRS
CEIS
CGT
CGU
CITES
COL
COLAT
CONTROL
CO₂-Grenzausgleichssystem - CBAM
CRN
CRS
CRSA
CS/RD; CS/RD2
CT
CTW
Customs Decisions Zentral - CDZ
CVA
CW1
CW2
CWP