Off-Premise Sign: A sign directing attention to a specific business, product, service, entertainment event or activity, or other commercial activity that is not sold, produced, manufactured, furnished, or conducted at the property upon which the sign is located. Also known as a third-party sign or outdoor advertising, and considered out-of-home media.
On-Premise Sign: A sign whose message and design relates to a business, profession, product, service, event, or other commercial activity sold, offered, or conducted on the same property where the sign is located. Signs in the on-premise category are not considered out-of-home media.
Open Channel Letter: A dimensional letter that has no face and, if illuminated, has a visible light source. A clear face for physical protection of internal components may be used.