Wild Catch Module Transshipping (Shipping) Event
Transshipment events capture the transfer of products from one vessel to another prior to landing. In these events, both the source and destination locations are different vessels.Transshipments are represented as two events: a shipping event from the originating vessel and a receiving event representing the products arriving on the destination vessel. This article describes the transshipping shipping event.
Event Profile
A transshipping shipping event is identified by the following event characteristics:
KDE | Value |
type | ObjectEvent |
action | OBSERVE |
bizStep | shipping |
disposition | in_transit |
locationClassification of vessel and a destination location with a locationClassification of vessel.KDE Requirements
The following KDEs are required on the root of a transshipping shipping event, in addition to the Core and Seafood requirements.
| KDE | Description | Example Value |
|---|---|---|
| bizLocation | Event location identifier for the vessel from which the seafood was transshipped; validated as a GLN with related master data | urn:epc:id:gln:1234567890123 |
| readPoint | A readPoint object with an id property equal to a geo formatted coordinate pair |
geo:37.860236,-123.144697 |
| informationProvider | A URN formatted PGLN or GDST party identifier | urn:epc:id:sgln:08600031303.0.0, urn:gdst:example.org:party:example_prefix.0 |
| unloadingPort | A UN/LOCODE string identifying the port where the transshipment occurred | USLA2 |
Source List Requirements
Both the owning_party and location must be set on the source list. The source list is an array property of objects that have a type and source property. Entries in sourceList tie the transshipment to the originating vessel and product owner.
| KDE | Description | Example Value |
|---|---|---|
| type | Indicates what is identified by the value, typically the owning party or location | urn:epcglobal:cbv:sdt:owning_party, urn:epcglobal:cbv:sdt:location |
| source | Either a PGLN or GDST party identifier to indicate the owning party or a GLN or GDST location identifier to indicate the location. | urn:epc:id:sgln:08600031303.0.0, urn:gdst:example.org:party:example_prefix.0, urn:gdst:example.org:location:loc:example_prefix.0 |
Example
[
{
"type": "urn:epcglobal:cbv:sdt:owning_party",
"source": "urn:gdst:traceability-solution.com:party:0048000.vessel_owner"
},
{
"type": "urn:epcglobal:cbv:sdt:location",
"source": "urn:gdst:traceability-solution.com:location:loc:0048000.fishing_vessel"
}
]Destination List Requirements
Both the owning_party and location must be set on the destination list. The destination list is an array property of objects that have a type and destination property. Entries in destinationList tie the transshipment to the receiving vessel and product owner.
| KDE | Description | Example Value |
|---|---|---|
| type | Indicates what is identified by the value, typically the owning party or location | urn:epcglobal:cbv:sdt:owning_party, urn:epcglobal:cbv:sdt:location |
| destination | Either a PGLN or GDST party identifier to indicate the owning party or a GLN or GDST location identifier to indicate the location. | urn:epc:id:sgln:08600031303.0.0, urn:gdst:example.org:party:example_prefix.0, urn:gdst:example.org:location:loc:example_prefix.0 |
Example
[
{
"type": "urn:epcglobal:cbv:sdt:owning_party",
"destination": "urn:gdst:traceability-solution.com:party:0048000.port_operator"
},
{
"type": "urn:epcglobal:cbv:sdt:location",
"destination": "urn:gdst:traceability-solution.com:location:loc:0048000.port"
}
]Certificate Requirements
A transshipment shipping event must carry at least one complete certificate in its certificationList. GDST 2.0 does not name certification types in its normative event profiles; the controlled list of supported values is maintained in the Certification Types article.
Certificates are required to have the following properties
| Certificate Property | Description | Example Value |
|---|---|---|
| certificationType | A URN formatted string defining the type of certificate | urn:gdst:certType:harvestCert |
| certificationAgency | The name of the certificate program owner | WHO |
| certificationStandard | The name of the standard associated with the certificate | WHO Human Decency Policy |
| certificationValue | An additional descriptor of the certificate if there are different quality values for the certificate | Quality class 4 |
| certificationIdentification | The ID of the certificate | 0987654321 |
Full JSON Example
{
"@context": [
"https://ref.gs1.org/standards/epcis/epcis-context.jsonld",
{
"gdst": "https://traceability-dialogue.org/epcis"
}
],
"type": "ObjectEvent",
"eventTime": "2026-04-17T22:58:47.3535287+00:00",
"eventTimeZoneOffset": "+00:00",
"eventID": "urn:uuid:3b853be6-e180-4a47-a09d-c9b41bcbce15",
"epcList": [],
"action": "OBSERVE",
"bizStep": "shipping",
"disposition": "in_transit",
"readPoint": {
"id": "geo:37.7749,-122.4194"
},
"bizLocation": {
"id": "urn:gdst:example.org:location:loc:solution.vessel1"
},
"quantityList": [
{
"epcClass": "urn:gdst:example.org:product:lot:class:solution.wildfish.lot2",
"quantity": 9876.0,
"uom": "KGM"
}
],
"sourceList": [
{
"type": "location",
"source": "urn:gdst:example.org:location:loc:solution.vessel1"
},
{
"type": "owning_party",
"source": "urn:gdst:example.org:party:solution.fisherman"
}
],
"destinationList": [
{
"type": "location",
"destination": "urn:gdst:example.org:location:loc:solution.vessel2"
},
{
"type": "owning_party",
"destination": "urn:gdst:example.org:party:solution.processor"
}
],
"cbvmda:unloadingPort": "PORTSD",
"cbvmda:certificationList": {
"certification": [
{
"gdst:certificationType": "urn:gdst:certType:harvestCoC",
"certificationAgency": "CoC Agency",
"certificationStandard": "Generic Chain of Custody Standard",
"certificationValue": "abc123",
"certificationIdentification": "COC-0001"
},
{
"gdst:certificationType": "urn:gdst:certType:humanPolicy",
"certificationAgency": "Human Policy Agency",
"certificationStandard": "Human Welfare Policy Standard",
"certificationValue": "pqr678",
"certificationIdentification": "HUMN-0006"
},
{
"gdst:certificationType": "urn:gdst:certType:transshipmentAuth",
"certificationAgency": "Transshipment Auth Agency",
"certificationStandard": "Transshipment Authorization Standard",
"certificationValue": "stu901",
"certificationIdentification": "TRANS-0007"
}
]
},
"cbvmda:informationProvider": "urn:gdst:example.org:party:solution.fisherman"
}