Waste Management, Inc. Announces Ticker Change To WM

Waste Management, Inc. today announced the change of its ticker symbol on the New York Stock Exchange (NYSE) from WMI to WM effective at the start of trading on Wednesday, August 5, 2009. The new symbol better represents the company’s current logo.

“We have put tremendous effort into communicating Waste Management’s leadership in providing environmental solutions,” said David Steiner, CEO. “From our trucks to our uniforms, the very recognizable WM represents our company and our people. The WM symbol reinforces how customers, communities and shareholders have come to think of us over the past years, and aligns our branding with our stock symbol.”

About Waste Management

Waste Management, Inc., based in Houston, Texas, is the leading provider of comprehensive waste management services in North America. Through its subsidiaries, the company provides collection, transfer, recycling and resource recovery, and disposal services. It is also a leading developer, operator and owner of waste-to-energy and landfill gas-to-energy facilities in the United States. The company’s customers include residential, commercial, industrial, and municipal customers throughout North America.