Understanding and Using This Specification Interpreting this Specification If merchants are uncertain about the interpretation or applicability of a particular requirement or best practice as stated as in this specification, it is their responsibility to contact their Moneris Client Integration Specialist to obtain clarification. Requirements Requirements are identified throughout the document as three types: either they are indicated by as “Requirement”, “Best Practice”, or “Note”. Best Practices Best practices use the words “should” or “may” if they are positive statements, and “should not” if they are suggestions to avoid certain behaviours or states. Best practices are recommendations only, and merchants are not obligated to implement them. Note that best practices, being at the merchant’s discretion, may not be tested during the Moneris approval process.