ISDA and SIFMA developed the CUSIP numbers for MAC contracts, in conjunction with CUSIP Global Services, in order to:
Standardize the identification of MAC contracts.
Facilitate trading and transparency in the interest rate swap market.
Enhance the operational efficiency of MAC contracts.
Help with position collapsing (swap reconciliation and compression).
Streamline communications between market participants, such as asset managers, futures commission merchants (FCMs), banks, swap execution facilities (SEFs) and swap data repositories (SDRs). For definitions of these terms, see Legal Update, The Dodd-Frank Alphabet Soup Quiz: Answers and Explanations.