Utilities, Utility Districts - As introduced, requires a municipal utility system or metropolitan electric plant that established a program before January 1, 2021, for purposes of accepting and distributing excess receipts for bona fide charitable purposes, and that operates the program on an opt-out basis, to begin operating the program on an opt-in basis by January 1, 2024. - Amends TCA Title 7, Chapter 34; Title 7, Chapter 52 and Title 65.