An artistic license requires me to have a pen or pencil and paper at my disposal at all times. If at anytime I am asked for the proof or the loan of said items and unable to produce them I run the risk of having my license revoked. This is the only requirement I am aware of. This law is usually not strictly enforced. If this infraction occurs an artist may at the most receive a warning and a slap on the wrist or possibly a fix-it ticket.