Private Protective Services - As enacted, creates the enhanced armed guard registration that may be obtained upon completion of certain training and other requirements by an armed security guard/officer who has at least five years of full-time experience as a law enforcement officer or four years of active duty military experience in a combat arms military occupational specialty; directs the commissioner of commerce and insurance to approve an enhanced armed guard training course. - Amends TCA Title 4; Title 39 and Title 62, Chapter 35.

HB 683 creates a new "enhanced armed guard" certification in Tennessee for security guards with qualifying backgrounds. It directly affects security officers who have at least five years as a law enforcement officer (or four years in combat military service), requiring them to complete approved 16-hour training covering rifle deployment scenarios and secure storage. The bill allows certified guards to carry rifle-caliber weapons only when a legitimate threat exists, with strict rules on storage and annual background checks for renewal. This policy change modifies existing law to establish new standards for weapon-carrying security personnel under Tennessee Code Annotated Title 62, Chapter 35.