Pennsylvania law criminlaizes the act of carrying a firearm without a license. Essentially, this law criminalizes anyone who carries a concealed firearm without properly being licensed.
A firearm is "concealed" for the purposes of this statute if the person has it in any vehicle or concealed (meaning not visible) on his person, except in his home or place of business.
If a person is otherwise able to obtain a "concealed carry" permit and fails to do so, he is guilty of a misdemeanor of the first degree. If the person carries a concealed weapon without a license and, because of his prior record, cannot get a license will be charged with this crime graded as a felony of the third degree.