UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 14A
Proxy Statement Pursuant to Section 14(a) of
the Securities Exchange Act of 1934 (Amendment No. )
Filed by the Registrant 
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| Preliminary Proxy Statement | ||||
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| Definitive Proxy Statement | ||||
| Definitive Additional Materials | ||||
| Soliciting Material under §240.14a-12 | ||||
| Clean Harbors, Inc. | ||||||||
| (Name of Registrant as Specified In Its Charter) | ||||||||
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