As used in 105 CMR 670.020, the term "preparer" means the manufacturer or employer who prepares an MSDS and applies for a determination that the chemical name, common name and/or CAS number of the toxic or hazardous substance is a trade secret of the preparer.
As used in 105 CMR 670.020, the term "identity of the substance" means the chemical name, common name and/or CAS number of the substance.
105 CMR, § 670.020