What does an * (asterisk) mean when its denoted next to a product specified in a UL Design
The “ * ” (asterisk) indicates such products must bear the UL Certification Mark. This means the UL mark, or the cUL certification mark for Designs applicable for use in Canada.
The use of the correct UL Certified product is essential for compliance with the UL design specifications and to ensure the construction of the assembly matches the assembly that was tested and certified in accordance with UL 263.
The UL Code Authority newsletter article UL Critical Component Identification in Fire Resistance-rated Designs contains more information on this subject.
To easily search for UL certified products for use in UL fire resistance-rated designs visit the free UL online search tool UL Product iQTM.