(a) The term “municipality” includes any incorporated city, town or village of the State of Mississippi, whether incorporated under a special charter or under the general laws of the State of Mississippi governing municipalities, and operating under any form of municipal government. However, for the purpose of establishing a motor vehicle transportation system for the transportation of passengers within the boundaries of the governmental unit or units concerned, and within three (3) miles thereof, the word “municipality” is defined to include counties and groups of municipalities and shall allow those governmental units to establish a commission as provided in Section 21-27-13 and exercise the powers granted in Sections 21-27-11 through 21-27-69. Each county or municipality joining together shall be allowed at least one (1) commissioner representing that governing authority. For the purpose of establishing a railroad transportation system for passengers and freight, the term “municipality” includes any county bordering the Mississippi River and in which Highways 49 and 61 intersect, and such county may exercise the powers granted in Sections 21-27-11 through 21-27-69;

(b) The term “system” includes waterworks system, water supply system, sewage system, sewage disposal system, or any combination thereof, including any combined waterworks and sewage system, consisting of an existing waterworks system or water supply system or both, combined with an existing sewage system or sewage disposal system or both, or consisting of an existing waterworks system or water supply system or both, combined with a sewage system or sewage disposal system or both, to be acquired, (as defined herein), or consisting of an existing sewage system or sewage disposal system or both, combined with a waterworks system or water supply system or both, to be acquired, (as defined herein), gas producing system, gas generating system, gas transmission system or gas distribution system, or any one (1) or all thereof, electric generating, transmission, or distribution system, garbage disposal system, rubbish disposal system, and incinerators, and all parts and appurtenances thereof. The term “system” also includes a motor vehicle transportation system for the transportation of passengers within the city limits and within three (3) miles thereof. The term “system” also includes a railroad transportation system of any municipality located within a county bordering the Mississippi River and in which Highways 49 and 61 intersect for the transportation of passengers and freight regardless of the amount of area outside the jurisdictional limits of such municipality for which the system provides service; the railroad transportation system may be located partially outside the boundaries of the county. The term “system” also includes a motor vehicle transportation system for the transportation of passengers of any municipality with a population of more than forty-five thousand (45,000) but less than forty-five thousand one hundred (45,100) according to the 1970 federal decennial census regardless of the amount of area outside the city limits of such municipality for which the system provides service. Wherever in Sections 21-27-11 through 21-27-69 any one or more of the systems authorized under this section are referred to, the same shall include motor vehicle transportation systems. The term “system” also includes any franchise held by the owner thereof and shall also include operations within the capabilities of any component facility within the system which reasonably utilize the public resources;

(c) The term “improvement” includes repair, betterment, enlargement, extension and other improvements to a system;

(d) The term “acquire” includes construct, purchase, gift, exercise of power of eminent domain and other methods by which a municipality may acquire a system;

(e) The term “improve” includes repair, better, enlarge, extend and other methods of improving a system;

(f) The term “ordinance” includes ordinance, resolution or other appropriate legislative enactment of the governing authorities of any municipality.