Clean Harbors' GAAP net income for 2021 was $203.247 million, up 50.7% from $134.837 million in the previous year. Revenue increased 21.1% to $3.806 billion from $3.144 billion a year earlier.
Clean Harbors' GAAP net income for 2021 was $203.247 million, up 50.7% from $134.837 million in the previous year. Revenue increased 21.1% to $3.806 billion from $3.144 billion a year earlier. 
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