(2) Is in possession of an amount of marijuana that does not exceed the amount permitted under this chapter. Such presumption may be rebutted by evidence that conduct related to marijuana was not for the purpose of alleviating the qualifying patient’s debilitating medical condition or symptoms associated with the medical condition.
(n) A practitioner, licensed with authority to prescribe drugs pursuant to chapters 34, 37, and 54 of title 5, or pharmacist, licensed under chapter 19.1 of title 5, or certified school nurse teacher, shall not be subject to arrest, prosecution, or penalty in any manner, or denied any right or privilege, including, but not limited to, civil penalty or disciplinary action by an employer or occupational or professional licensing board or bureau solely for:
(h) There shall exist a presumption that a cardholder is engaged in the medical use of marijuana if the cardholder:
The Edward O. Hawkins and Thomas C. Slater Medical Marijuana Act
(b) An authorized purchaser who has in his or her possession a registry identification card shall not be subject to arrest, prosecution, or penalty in any manner, or denied any right or privilege, including, but not limited to, civil penalty or disciplinary action by a business or occupational or professional licensing board or bureau, for the possession of medical marijuana; provided that the authorized purchaser possesses an amount of medical marijuana that does not exceed two and one-half (2.5) ounces of usable marijuana, or its equivalent amount, and this medical marijuana was purchased legally from a compassion center for the use of their designated qualifying patient.
(ii) Undertaking a task under the influence of marijuana when doing so would constitute negligence or professional malpractice or jeopardize workplace safety;
R.I. Gen. Laws � 21-28.6-4
(2) Where the employer is a federal contractor or otherwise subject to federal law such that failure of the employer to take such action against the employee would cause the employer to lose a monetary or licensing related benefit.
(e) No employer may refuse to employ, or otherwise penalize, a person solely for his or her status as a cardholder, except: