Custodial care facilities; acquiring and possessing

controlled substances. A. A licensed custodial care facility that is authorized to provide medically monitored withdrawal management that is under the supervision of a consulting pharmacist and has nursing staff on-site twenty-four hours per day, three hundred sixty-five days per year, may acquire, stock, maintain and have in the facility's possession dangerous drugs, including controlled substances to be used for withdrawal management purposes, in accordance with board rules. B. As used in this section, "controlled substance" means a drug, substance or immediate precursor enumerated in Schedules III and V of the Controlled Substances Act.