Americans can expect to start receiving a second round of stimulus checks, with some coming as early as Tuesday night, according to the Treasury Department. Known officially as economic impact payments (EIP), the checks are part of the implementation of the Coronavirus Response and Relief Supplemental Appropriations Act of 2021, the pandemic relief bill that President Donald Trump signed on Sunday and that includes a second round of direct payments of up to $600 per person. “These payments may begin to arrive in some accounts by direct deposit as early as tonight and will continue into next week,” Treasury Secretary Steven Mnuchin wrote in a tweet Tuesday afternoon. Paper checks will begin to be mailed on December 30, the Treasury Department said in a statement. “This second round of payments will provide critical economic support to those who, through no fault of their own, have been adversely impacted by the COVID-19 …