OPERATIONS

12 Months Ended

Dec. 31, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Operations

OPERATIONS

Clean Harbors, Inc., through its subsidiaries (collectively, the "Company"), is a leading provider of environmental, energy and industrial services throughout North America. On December 28, 2012, the Company acquired 100% of the outstanding common shares of Safety-Kleen, Inc. and its subsidiaries (collectively, "Safety-Kleen"), which is the largest re-refiner and recycler of used oil in the world and the largest provider of parts cleaning and environmental services to commercial, industrial and automotive customers in North America.