Maryland Statutes
Title 18 - Vehicle Laws -- For-Rent Vehicles
Section 18-105 - Renting Vehicles to Another -- Persons Under Influence of or Impaired by Alcohol, Drugs, or Controlled Dangerous Substances

(a)    A person may not rent a motor vehicle to any other person if he knows that the other person is under the influence of alcohol, impaired by alcohol, impaired by a drug, a combination of drugs, or a combination of one or more drugs and alcohol, or impaired by a controlled dangerous substance.
    (b)    A person may not rent a motor vehicle to any other person if the person knows that an individual who will drive the rented vehicle is under the influence of alcohol, impaired by alcohol, impaired by a drug, a combination of drugs, or a combination of one or more drugs and alcohol, or impaired by a controlled dangerous substance.