What can a guest not possess in their vehicle without a license?

A concealed firearm is subject to specific legal regulations that vary by state and locality. Generally, possessing a concealed firearm in a vehicle requires a proper license or permit. Without this authorization, the ownership of such a weapon becomes illegal, making it crucial for guests to ensure they have the necessary licensing before attempting to carry a concealed firearm in their vehicle.

In contrast, while items like stun guns, knives with a blade longer than 4 inches, and fireworks may also have restrictions, their legality does not hinge strictly on carrying a license. For instance, the legality of stun guns can depend on state laws, and while some areas may have specific regulations regarding knives, a license is typically not a requirement for possession in the vehicle. Fireworks, too, are regulated under local laws, often requiring permits for use or transportation, but again, not necessarily a license like that of a concealed firearm. Thus, the possession of a concealed firearm is uniquely tied to the requirement of obtaining a license.