The purpose of this matrix is to capture the latest Counterparty ID waterfalls for various jurisdictions to reference as industry standard. Counterparty IDs are used to identify the counterparties, including reporting counterparties, to a transaction. Most reporting regulations specify allowable values for party identification, however, where such values are not available, the reporting party may need to use an alternative party identifier. Reporting jurisdictions may have different preferred waterfalls for alternative Counterparty IDs.