An act making the medical use of marijuana legal under Arkansas state law, but acknowledging that marijuana use, possession, and distribution for any purpose remain illegal under federal law; establishing a system for the cultivation, acquisition and distribution of marijuana for qualifying patients through nonprofit medical marijuana dispensaries and granting those nonprofit dispensaries limited immunity; allowing localities to limit the number of nonprofit dispensaries and to enact reasonable zoning regulations governing their operations; providing that qualifying patients, their designated caregivers and nonprofit dispensary agents shall not be subject to criminal or civil penalties or other forms of discrimination for engaging in or assisting with the patients’ medical use of marijuana; authorizing limited cultivation of marijuana by qualifying patients or designated caregivers if a qualifying patient lives more than five miles from the nearest nonprofit dispensary; authorizing compensation for designated caregivers; requiring that in order to become a qualifying patient, a person submit to the state a written certification from a physician that he or she is suffering from a qualifying medical condition; establishing an initial list of qualifying medical conditions; directing the department of health to establish rules related to the processing of applications for registry identification cards, the operations of nonprofit dispensaries, and the addition of qualifying medical conditions if such additions will enable patients to derive therapeutic benefit from the medical use of marijuana; setting maximum registration fees for nonprofit dispensaries; establishing qualifications for registry identification cards; establishing standards to ensure that qualifying patient and designated caregiver registration information is treated as confidential; directing the department of health to provide the legislature annual quantitative reports about the medical marijuana program; setting certain limitations on the use of medical marijuana by qualifying patients; establishing an affirmative defense for the medical use of marijuana; establishing registration and operation requirements for nonprofit dispensaries; setting limits on the amount of marijuana a nonprofit dispensary may cultivate and the amount of marijuana a nonprofit dispensary may dispense to a qualifying patient; prohibiting certain conduct by and imposing certain conditions and requirements on physicians, nonprofit dispensaries, nonprofit dispensary agents, qualifying patients, and designated caregivers; establishing a list of felony offenses which preclude certain types of participation in the medical marijuana program; and allowing visiting qualifying patients suffering from qualifying medical conditions to utilize the Arkansas medical marijuana program.