Public Health - As introduced, prohibits the state or a political subdivision of the state from requiring an immunization unless exemptions are provided for persons who file signed, written statements affirming that the immunization conflicts with their religious tenets and practices; makes certain other changes related to immunizations. - Amends TCA Title 8; Title 14; Title 36, Chapter 1, Part 1; Title 37; Title 49; Title 50 and Title 68.