To view more regulatory and statutory information, please see Chapter 11 Rule (Word). The PMP is a key part of the State of Maine’s Opioid Response Strategy by decreasing the amount and frequency of opioid and controlled substances prescribing. The Prescription Monitoring Program (PMP) is a secure database that is used across the State of Maine to improve public health by providing controlled substance drug use information prior to prescribing or dispensing those drugs.