Storage of firearms in a residence where a minor or person prohibited from possessing a firearm is present; penalty. Requires any person who possesses a firearm in a residence where such person knows that a minor or a person who is prohibited by law from possessing a firearm is present to store such firearm and the ammunition for such firearm in a locked container, compartment, or cabinet that is inaccessible to such minor or prohibited person. The bill provides that a violation is a Class 4 misdemeanor. The bill exempts (i) any person in lawful possession of a firearm who carries such firearm on or about his person and (ii) the storage of antique firearms and provides that the lawful authorization of a minor to access a firearm is not a violation of the bill's provisions. The bill also requires firearm dealers to post a notice stating such firearm storage requirements and the penalty for improperly storing such firearms. An Act to amend the Code of Virginia by adding a section numbered 18.2-308.7:1, relating to storage of firearms in a residence where a minor or person prohibited from possessing a firearm is present; penalty.