105 C.M.R. 500.030
(A) All persons who operate a meat or poultry slaughter and/or processing facility shall comply with 105 CMR 500.030 through 500.031.
(E) No person shall slaughter or process livestock, wild-caught animals, or poultry, or operate a meat or poultry slaughter and/or processing facility, without a valid license granted by the Department, or in violation of any of the applicable requirements of 105 CMR 500.000.