Ports of entry are responsible for daily port specific operations. There are many official ports around the world which control the incoming and outcoming process of freight shipping. To make the process of documentation arrangement easier special port codes are used internationally. These codes are sort of acronyms which include letters from country and port name.
| Bahamas | Belize | Costa Rica | El Salvador | Grenada | | Freeport | BSGBI | Belize City | BZBZE | Alajuela | CRAJU | Comalapa | SVCPL | Grenville | GDGRE | | Nassau | BSNAS | Big Creek | BZBGK | Caldera | CRCAL | San Miguel | SVSMG | Grenada | GDGND | | New Bight | BSNET | Corozal | BZCZH | San Isidro | CRSIS | Santa Ana | SVSTA | Hillsborough | GDHIL | | Stella Maris | BSSML | Orange Walk | BZORZ | San José | CRSJO | San Salvador | SVSAL | | | | Haiti | Jamaica | Nicaragua | Panama | Puerto Rico | | Cap-Haïtien | HTCAP | Kingston | JMKIN | Granada | NIGRA | Balboa | PABLB | Aguadilla | PRBQN | | Gonaïves | HTGVS | Negril | JMNEG | Managua | NIMGA | Panamá | PAPTY | Carolina | PRUTU | | Fort Liberte | HTFLI | Spanish Town | JMSPT | Matagalpa | NIMTG | Santiago | PATBG | Guayama | PRGUA | | Miragoane | HTMIR | Port Antonio | JMPOT | San Carlos | NINCR | San Miguel | PAMPP | San Juan | PRDDP, PRSJU |
| Trinidad and Tobago | | Point Fortin | TTPTF | | Port of Spain | TTPOS | | Tunapuna | TTTUN | | Marabella | TTMAR |
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