Tennessee Code Title 64. Regional Authorities § 64-8-302

(1) “Local government official” means the elected officials representing any county, municipal, or metropolitan government located within the boundaries of a metropolitan planning organization; and

(2) “Metropolitan planning organization” means an agency that is designated or redesignated by a memorandum of understanding as a metropolitan planning organization in accordance with 23 U.S.C. § 134; provided, that the boundaries of the metropolitan planning organization are located entirely within this state; provided further, that the metropolitan planning organization contains not less than three (3) counties located within this state.