ADP/SIS Achieves Prestigious ISO 9001:2000 Certification

Wheat Ridge, CO – March 19, 2002 - ADP Brokerage Services Group, a division of Automatic Data Processing, Inc. (NYSE: ADP), announced today that its ADP Securities Industry Software (ADP/SIS) division was recently awarded the prestigious, international ISO 9001:2000 certification. In addition, ADP/SIS recently achieved Capability Maturity Model (CMM) Level 2 certification.

The ISO 9001:2000 quality standard emphasizes customer satisfaction and continual improvement. Through this accomplishment, ADP/SIS joined an elite group of companies that have achieved world class quality within their organizations by meeting the requirements of ISO 9001:2000.

This certification assures the industry, as well as ADP/SIS’s clients and prospects that its products and customer support services meet extremely high standards, as established by the International Standards Organization and verified by Orion Registrar, Inc., USA. Joe Tunner, lead auditor of Orion Registrar, comments, “ADP/SIS has clearly defined objectives for continual improvement. These are further refined into objectives for each operating area, providing good alignment between upper management and the actual activities that are being pursued”.

In addition to the ISO certification, ADP/SIS was recently awarded CMM Level 2 certification. The Capability Maturity Model provides organizations with a measure against which to gauge their software. “Some time ago we began a Software Process Improvement initiative”, states Nigel Thrussell, vice president of Systems Development, ADP/SIS. “The intent was to improve the processes used to develop and maintain our software. The CMM, which was developed by the Software Engineering Institute at Carnegie Mellon, provided us with the necessary barometer to measure our successes against,” Mr. Thrussell continues.

As a leading provider of securities and information processing software solutions, ADP/SIS specializes in serving discount and electronic-based retail brokerages, as well as correspondent clearing, day trading, regional broker dealers, banks and institutional firms.

About ADP Brokerage Services Group
As the premier provider of transaction related services to the financial industry, ADP has the capacity and technological expertise to assist its clients in differentiating themselves in the marketplace. ADP brings to financial intermediaries advanced, integrated systems for securities processing, desktop productivity and investor communication services, all focused on providing unique solutions for straight through processing and World Class Service. ADP continually uses technological advancements to develop innovative products that meet the long-term business needs of its clients.

As a leading outsourcing vendor, ADP is leveraging its position to provide competitive, cost-effective services to its clients worldwide. With approximately $7 billion in revenue and more than 500,000 clients, ADP is one of the largest independent computing services firms in the world. For more information about ADP Brokerage Services Group visit our website at www.bsg.adp.com. For other ADP services and investor information please visit www.adp.com.

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