Remedies and Special Proceedings - As enacted, removes the ability to bring a civil liability action for negligence per se against a seller of a qualified product; expands "qualified products" to include knives, body armor, pepper spray, silencers, and other certain products; requires physical injury for a negligent entrustment action rather than an unreasonable risk of physical injury; specifies that a person who will be subject to an ordinance in the future or reasonably intends to be physically present in the political subdivision is an adversely affected party for purposes of filing certain actions; makes various other changes regarding civil actions against arms dealers, manufacturers, and sellers and the preemption of local regulation of firearms. - Amends TCA Title 29, Chapter 42 and Title 39.

HB 873 restricts civil lawsuits against sellers and manufacturers of certain weapons-related products by removing negligence per se claims and requiring actual physical injury for negligent entrustment cases. It expands the definition of "qualified products" to include knives, body armor, pepper spray, silencers, and other defensive weapons, making these products subject to the new liability limits. The bill clarifies that only individuals who will be physically present in a local area or are adversely affected by future ordinances can file certain lawsuits, and it explicitly states Tennessee's public policy against holding sellers liable for third-party misuse of these products. These changes primarily affect arms dealers, manufacturers, and sellers of the expanded product list, limiting their legal exposure in civil cases.