Maestro Global Rules (PDF) - MasterCard

Processing Requirements
9.10 Currency Conversion Rates
The Acquirer failure rate is calculated based on the monthly volumes of POS
or ATM Transactions processed through each Acquirer connection to the
Interchange System and is calculated according to the formula below:
The sum of the following ISO 8583 response codes:
1. 13 invalid amount
2. 30 format error
Divided by the total number of POS and ATM Transactions processed through
the Acquirer connection to the Interchange System.
9.9.3 Noncompliance Assessments for Substandard
Performance
An Issuer or Acquirer that fails to meet the Corporation’s performance standards
may be subject to the following regional noncompliance assessments:
Occurrence Penalty
First occurrence USD 15,000
Second occurrence within the twelve
(12)-month period following the first
occurrence
Third and any subsequent occurrence within
the twelve (12)-month period following the
second occurrence
USD 15,000
USD 20,000
After completion of a full calendar year without any violations, a subsequent
violation is counted as a first violation.
9.10 Currency Conversion Rates
When currency conversion is performed by the Corporation, the exchange rates
will be determined by the Corporation. These exchange rates are updated daily.
9.11 Gateway Processing—ATM Transactions Only
9.11.1 Liability
The liability of the Corporation to Customers that use Gateway Processing
for ATM Transaction processing errors is limited to actual damages up to the
amount of the erroneous ATM Transaction(s).
©1993–2012 MasterCard. Proprietary. All rights reserved.
Maestro Global Rules • 9 November 2012 9-25