Massachusetts General Laws Part I. Administration of the Government (Ch. 1-182) Ch. 149, § 147B

No employer shall deliver or cause to be delivered to any person any materials or articles to be manufactured or worked upon by industrial homework unless there has been conspicuously affixed to each article or, if impossible so to affix, then to the package or other container in which such goods are delivered or are to be kept, a label or other mark of identification bearing the employer's name and address, printed or written legibly in English.