The following words and terms as used in this part shall have the meanings ascribed to them in this section, unless a contrary meaning is apparent from the context: (1) COUNTY. Shelby County, Alabama (2) DISTRICT FOR EMERGENCY MEDICAL SERVICES. A district created under this part for establishing and maintaining a system for the operation of emergency medical services, including rescue and ambulance services. (3) DISTRICT FOR FIGHTING FIRES. A district created under this part for establishing and maintaining a system for fighting or preventing fires. (4) DISTRICT FOR FIRE FIGHTING AND EMERGENCY MEDICAL SERVICES. A district created under this part for establishing and maintaining a system for fighting and preventing fires and a system for the operation of emergency medical services. (Acts 1977, 1st Sp. Sess., No. 62, p. 1483, § 2.)