EMVCo website. The specification bulletin accomplishes the following:
- Introduces PAR as an industry aligned data structure.
- Describes the presence of PAR in payment token and underlying PAN transactions.
- Defines PAR to be used as a consistent value for all payment tokens affiliated with an underlying PAN.
- Outlines how PAR can be used by acquirers, payment processors and merchants to link payment token transactions to those of the underlying PAN.

