Regional Authorities and Special Districts - As enacted, vacates the present board of commissioners of each existing authority for metropolitan and regional airports and reconstitutes a new governing body; makes related changes. - Amends TCA Title 4; Title 7 and Title 42.

SB 2473 changes Tennessee law to extend the deadline for metropolitan airport authorities to submit their annual operating budgets. Specifically, it increases the required submission window from 60 days to 75 days before the fiscal year begins. This affects the president of each metropolitan airport authority, who must now submit the budget to the board for approval 75 days prior to the fiscal year start date. The bill takes effect on July 1, 2026.