The GWP (Global Warming Potential) is declared as follows:

a) PreCau:

Box 44:

• C44type = 7015.

• C44Reference = the amount of PCA of the merchandise being imported. When such amount is not known, nothing is declared (to whites).

b) CAU :

Supporting Documents box in Items.

• Type = 7015.

• MeasurementUnitAndQualifier:  unit of measurement of the PCA quantity.

• Quantity: Amount of PCA.  Likewise: When such a quantity is unknown, zero should be declared in this data element. If the amount is known, it must also be declared here. 
  ReferenceNumber is not taken into account. 

Examples:

• PCA is NOT known.

  • Type = 7015.

  • ReferenceNumber = My reference.  The PCA amount is in Quantity.

  • MeasurementUnitAndQualifier: NAR

  • Quantity: 0

• YES the PCA is known.

  • Type = 7015.

  • ReferenceNumber = 160.  Note: This amount declared here is NOT used for settlement. Only the one declared in Quantity.

  • MeasurementUnitAndQualifier: NAR

  • Quantity: 160

Tomorrow 01/10/2025: will take effect in CAU import declaration. PreCau: remains unchanged.