in South Carolina

“It shall be unlawful for any person knowingly or intentionally to possess a controlled substance unless the substance was obtained directly from, or pursuant to a valid prescription or order of, a practitioner while acting in the course of his professional practice, or except as otherwise authorized by this article.” — scstatehouse.gov

“for persons, or the persons' parents, legal guardians, or other caretakers, who have received a written certification from a physician licensed in this State that the person has been diagnosed by a physician as having Lennox-Gastaut Syndrome, Dravet Syndrome, also known as "severe myoclonic epilepsy of infancy", or any other severe form of epilepsy that is not adequately treated by traditional medical therapies, the substance cannabidiol, a nonpsychoactive cannabinoid, or any compound, manufacture, salt, derivative, mixture, or preparation of any plant of the genus cannabis that contains nine-tenths of one percent or less of tetrahydrocannabinol and more than fifteen percent of cannabidiol.” — scstatehouse.gov