Meg Guerin-Calvert, supported by a Compass Lexecon team including David Fenichel, Jeff Raileanu, and Richard Mills, provided economic analysis in the proposed acquisition of Healthcare Waste Solutions (HWS) by Stericycle in the medical waste collection, transportation, and treatment industry. The focus of the work was on relevant geographic markets, competitors, and the potential for entry in a number of Eastern states. Compass Lexecon worked closely with the parties and their counsel throughout the second request process, contributed analyses to written submissions to the Department of Justice, and participated in presentations before the agency. The deal was cleared subject to the divestiture of a transfer station in the NYC area. Stericycle was represented by David Clanton, Brian Burke, and David Laing at Baker & McKenzie, and HWS was represented by William Kolasky, James Lowe, and Andrew King at WilmerHale.