Comdata® Announces Acquisition of Inter-Tax, Inc.

March 12, 2007

Deal results in the most comprehensive Regulatory Compliance Solution in North America

Brentwood, Tenn. - (March 12, 2007) - Comdata^® Corporation, a wholly owned subsidiary of Ceridian Corporation, has announced it has acquired Inter-Tax, Inc. a leading provider of paperless fuel tax services. The acquisition creates North America's most comprehensive suite of regulatory compliance solutions for the ground transportation industry. Companies will benefit from the following solutions:

• Fuel tax service with best-in-class automated fuel tax reporting.
• Proprietary trip-based technology for carriers to manage out-of-route travel, toll costs, off-road refunds, and fleet performance benchmarking based on the industry's most comprehensive operational database.
• North America's only permitting service with imaging capabilities and nationwide service linked directly to state offices.
• One of the largest networks of professional and compliant pilot car drivers in North America.
• Complete web-based, DOT compliant log management system, which allows carriers to replace all driver logs with scanned images, completely audited and available online within 48 hours of receipt.

"Comdata is pleased to expand our regulatory compliance footprint with this strategic acquisition, which ultimately benefits our customers. Inter-Tax is a proven industry leader with an exceptional reputation among its customers," said Gary Krow, President of Comdata. "The combined financial strength and operational expertise that results from the acquisition will set the standard for regulatory compliance solutions throughout North America."

"We are very excited about the opportunity to bring our two companies together," said Tom Rushfeldt, Inter-Tax founder. "Comdata is an industry leader with a suite of flexible financial solutions and services that improve efficiency and profitability. The addition of Inter-Tax to Comdata's very strong set of regulatory compliance solutions will give our clients the industry's most comprehensive compliance solutions."

The Inter-Tax customer base will benefit from access to Comdata's suite of solutions including temporary permitting, pilot car procurement, licensing, paper based fuel tax, driver log auditing, driver retention, document retention and drug and alcohol testing solutions.

About Comdata Corporation
Comdata^® Corporation (www.comdata.com) is redefining the movement of money and information through innovative payment solutions. Comdata provides custom solutions for a wide range of industries such as transportation, retail, government services, aviation, construction, service businesses, restaurants and hospitality. Innovative electronic payment solutions range from credit and debit cards, gift and loyalty cards, fleet, fuel, payroll, purchasing and T&E. As a full-service merchant processor, Comdata's platforms support both its proprietary and branded card networks, as well as card processing for all card types. Headquartered in Brentwood, Tennessee, Comdata employs more than 1,600 people worldwide. Comdata is a wholly owned subsidiary of Minneapolis-based Ceridian Corporation (NYSE: CEN).

About Inter-Tax
Founded in 1994 and headquartered in Minnetonka, Minnesota, Inter-Tax, Inc. is the industry's largest and best-in-class provider of paperless fuel tax services, processing more than 300 fleets and 100,000 vehicles each month. Inter-Tax offerings include: Inter-Tax Full Service, Inter-Tax Advantage, Inter-Tax Refund Services and Inter-Tax Audit Services, all designed to streamline fuel tax management and reporting processes, maintain IFTA compliance, generate refunds and reduce audit risk. The company's exclusive Trip-Based Reporting technology, which precisely matches GPS locations to individual load records, allows motor carriers to benefit from its widely recognized ability to achieve standards acclaimed for accuracy, usability and customer service.
www.inter-tax.com

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