The commission said it will issue Encore its final operation certificate during a public meeting later this month.Ĭommission Chairwoman Cathy Judd-Stein welcomed the first day. State gambling regulators approved Encore to open for business after three test nights. “We know that the company has invested a tremendous amount of money, and we can’t wait to open to get to the public in the doors so we can make the return on investment for shareholders,” said Encore Boston Harbor President Bob DeSalvio. State gambling regulators on Friday granted Encore Boston Harbor a temporary operating certificate to open its doors Sunday at 10 a.m.