Comdata(R) Announces New MasterCard Customer.

BRENTWOOD, Tenn. -- Comdata(R) Corporation, a wholly owned subsidiary of Ceridian Corporation (NYSE: CEN), announced today Airgas, Inc. (NYSE: ARG), is integrating the Comdata MasterCard fuel program for all fuel purchases for Airgas vehicles across the United States.

Airgas, Inc., the largest U.S. distributor of industrial, medical, and specialty gases and related hardgoods, will use the Comdata fuel card to track and manage all its vehicle-related fuel, maintenance and repair expenses for its fleet of more than 3,200 trucks.

"This fuel card program will help aggregate and manage transportation costs for all the vehicles operated by our businesses throughout the nation," said Mike Rohde, senior vice president of Distribution Operations for Airgas, Inc. The new Comdata fuel card feature offers Airgas a full range of supply chain management solutions, the convenience of MasterCard acceptance, real-time purchase controls, and enhanced reporting designed to lower cost, improve efficiency, and drive incremental margin improvement.

"Our clients can leverage Comdata's own proprietary merchant network to enhance their fuel discount opportunities," Bob Sneed, vice president of corporate payment solutions, Comdata, said. "I think this program will be very beneficial to everyone involved."

About Comdata Corporation

Comdata(R) Corporation (www.comdata.com) is a leading business-to-business issuer and processor of payment cards, primarily in the retail and transportation industries. Comdata's range of products and services include fleet, fuel, purchasing, T&E, payroll/reimbursement, EBT, gift and loyalty cards and processing. A full-service merchant processor, Comdata's platforms support both its proprietary card networks as well as processing for any card tender a merchant may accept. Headquartered in Brentwood, Tenn., Comdata employs more than 1,600 people nationally and internationally. Comdata is a wholly owned subsidiary of Minneapolis-based Ceridian Corporation (NYSE: CEN).

About Ceridian

Ceridian Corporation (NYSE: CEN) is an information services company serving businesses and employees in the United States, Canada and Europe. Ceridian is one of the top human resources outsourcing companies in each of its markets, and offers a broad range of human resource services, including payroll, benefits administration, tax compliance, HR information systems and employee advisory programs. Through its Comdata subsidiary, Ceridian is a major payment processor and issuer of credit cards, debit cards and stored value cards, primarily for the trucking and retail industries in the United States. www.ceridian.com

About Airgas, Inc.

Airgas, Inc. (NYSE: ARG), through its subsidiaries, is the largest U.S. distributor of industrial, medical, and specialty gases, and related hardgoods, such as welding equipment and supplies. Airgas is also the third-largest U.S. distributor of safety products, the largest U.S. producer of nitrous oxide and dry ice, the largest liquid carbon dioxide producer in the Southeast, and a leading distributor of process chemicals, refrigerants and ammonia products. Its 10,000 employees work in about 900 locations including branches, retail stores, gas fill plants, specialty gas labs, production facilities and distribution centers. Airgas also distributes its products and services through eBusiness, catalog and telesales channels. Its national scale and strong local presence offer a competitive edge to its diversified customer base. For more information, please visit www.airgas.com.