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REPUBLIC SERVICES AND MACK TRUCKS PARTNER TO INTRODUCE FIRST AMERICAN-BUILT HYBRID DIESEL GARBAGE TRUCK Four 2010 Diesels with Selective Catalytic Reduction in Use Hybrid Diesel Slated for 2010

PHOENIX, April 23, 2009—Republic Services (NYSE:RSG) and Mack Trucks, Inc. have formed a partnership that allows Republic to field-test four pre-production diesel garbage trucks equipped with selective catalytic reduction (SCR) technology and to field test the first American-built Mack Diesel Hybrid garbage truck.

Republic is field testing the SCR prototype trucks in Denver (high altitude); Eden Prairie, MN (cold climate); and Lakeland and Ft. Lauderdale, FL. (humid climate). Using SCR technology, the trucks meet the United State Environmental Protection Agency emission regulations without using engine emission credits. Republic is committed to using multiple technologies to lower fuel consumption and emissions.

“Republic has been field testing the Mack SCR prototype garbage collection chassis,” said Ron Cole, regional fleet sales manager for Mack Trucks. “This quickens the pace of our development of technologies that can be implemented immediately to protect our environment. Republic and Mack will continue to partner in the development of hybrid diesel-electric prototypes as both our companies explore opportunities to adopt hybrid at the heavy duty level for the collection of wastes and recyclables.”

“Using SCR technology now and hybrid technology later is a two-pronged approach,” said Roy Svehla, senior manager of fleet maintenance for Republic. “Working with Mack, we are striving to develop equipment that serves our business from cost, service and maintenance perspectives. Chassis life cycles, operating, procurement and maintenance costs, driver ergonomics, safety, environmental compliance and dealer support are all factored into the equation when we make our purchasing decisions.”
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Mack says its diesel electric hybrid technology provides the maximum fuel savings on routes with frequent braking and accelerations. This means that in addition to refuse collection work, it’s good for urban delivery runs and certain construction applications.

Mack estimates its hybrid system can boost fuel economy by about 20 percent while cutting greenhouse emissions and the cost of maintenance.

In addition to its work at highway speeds, the engine also charges an onboard energy storage system, which provides power to the electric motor when demand is high. Energy that is generated during braking is captured and stored using regenerative braking.

About Republic Services, Inc.
Republic Services, Inc. has been building on success since its inception in 1998, becoming an industry-leading provider of waste and environmental services. The company provides trash collection services to commercial, industrial, municipal and residential customers in 40 states and Puerto Rico through its 400 collection companies. Republic Services owns or operates 242 transfer stations, 213 solid waste landfills and 78 recycling facilities. The company is headquartered in Phoenix, Arizona and has more than 35,000 employees. For more information, visit the Republic Services web site at www.republicservices.com.

About Mack Trucks, Inc.
Mack Trucks, Inc. is part of the Volvo Group, one of the world's leading manufacturers of trucks, buses and construction equipment, drive systems for marine and industrial applications, aerospace components and services, and heavy-diesel engines (9-16 liter). The Group also provides complete solutions for financing and service. The Volvo Group, which employs about 100,000 people, has production facilities in 19 countries and sells their products in more than 180 markets. Annual sales of the Volvo Group amount to over $42 billion. The Volvo Group is a publicly-held company headquartered in Gothenburg, Sweden. Volvo Shares are listed on OMX Nordic Exchange Stockholm and are traded OTC in the U.S.