Firearms and Ammunition - As introduced, allows law enforcement officers, whether on-duty or off-duty, retired law enforcement officers, active duty and retired members of the armed forces of the United States, whether in discharge of official duties or not, and enhanced handgun carry permit holders, except in certain circumstances, to possess or carry, whether openly or concealed, with or without the intent to go armed, a handgun in any public school building or bus, on any public school campus, grounds, recreation area, athletic field, or any other property owned, operated, or while in use by any public board of education, school, college, or university board of trustees, regents, or directors for the administration of any public educational institution. - Amends TCA Title 38; Title 39, Chapter 17, Part 13; Title 49; Chapter 142 of the Public Acts of 2023 and Chapter 149 of the Public Acts of 2023.