Md. EDUCATION Code Ann. 13-516(b)
License Reciprocity: Emergency Medical Services
An individual authorized to provide emergency medical services in an adjoining state, and called on by a public safety agency to provide their services or to transport a patient, is not required to be licensed in Maryland. This person must follow the scope of practice of their license from their state.
Emergency medical services; Board; license or certificate
(b) License or certificate required. -- (1) Except as otherwise provided in this section, an individual may not provide emergency medical services in the State unless issued a license or certificate by the EMS Board under this section. (2) This section does not apply to: (i) An individual who: 1. Has completed an emergency medical services course or its equivalent as determined by the EMS Board; 2. Is authorized to provide emergency medical services by any state adjoining this State; 3. Is called on by a public safety agency providing emergency medical services to render emergency medical services in this State or to transport emergency patients from the adjoining state to a health care facility in this State; 4. Is providing emergency medical services within the scope of the license or certificate issued to the individual by the other state; and 5. Is not affiliated with an emergency medical service in this State or is not engaged in providing emergency medical services in this State on a regular basis;