Safety-Kleen, a subsidiary of Clean Harbors, is a leader in used oil recycling and refining, parts cleaning and environmental solutions, and is the official trackside environmental service provider for the biggest races in the world of motorsports. Headquartered in Richardson, TX, the company has approximately 4,300 employees and serves more than 270,000 customer locations in the United States, Canada and Puerto Rico. A key selling point fo

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