R.I. Gen. Laws § 28-18-12: Homeworker’s certificate required.

No person shall do industrial homework unless his or her name is on a homeworker’s certificate issued by the director of labor and training and permitting industrial homework to be done by him or her in the residence and at the address named in the certificate. The certificate shall be shown on demand of the director of labor and training or any of his or her duly authorized agents.