Editor’s note: The date and time of this episode has changed.

“Clean Harbors” – When Alan S. McKim, Chairman and CEO of Clean Harbors, tackles some dirty jobs to see if his company needs cleaning up, he’s faced with the challenge of working in a confined space while treating the inside of a dirty tank at a re-refinery that processes waste oil, on UNDERCOVER BOSS, Monday, Jan. 27 (9:00-10:00 PM, ET/PT) on the CBS Television Network. (Episode was originally scheduled to air Wednesday, Jan. 29, 8:00-9:00 PM.)

Clean Harbors is the leading environmental and industrial service provider and largest hazardous waste disposal company in North America, and it is a recognized leader in environmental emergency response services. The business provides a broad range of services, and maintains a vast network of service centers and waste management, treatment, disposal and recycling facilities. Publicly traded on the NYSE, Clean Harbors was founded by Alan S. McKim in 1980 as a four-person tank cleaning business.

UNDERCOVER BOSS is a two-time Emmy Award-winning reality series that follows high-level executives as they slip anonymously into the rank-and-file of their own organizations. Each week, a different leader will sacrifice the comfort of their corner office for an undercover mission to examine the inner workings of their operation.

CHEAT TWEET: One-time-only different night/time for an original #UndercoverBoss! On Mon. Jan 27, 9/8c the @CleanHarbors Chairman/CEO tackles some dirty jobs to see if his hazardous waste disposal company needs cleaning up! #CBS http://bit.ly/36mBmzD

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