Local Government, General - As enacted, prohibits as against public policy a metropolitan government ordinance, charter provision, or resolution that requires a supermajority vote of the local legislative body in order to make improvements to, renovations to, or the demolition and replacement of existing facilities owned by the metropolitan government when such facilities are to be used for substantially the same purpose as the use prior to any changes; requires that the voting requirement for such actions involving existing facilities must be the same voting requirement applicable to ordinances of the legislative body in general. - Amends TCA Title 2; Title 5; Title 6 and Title 7.