Application guides are designed to assist code authorities, designers, and installers in determining the suitability of UL certified equipment for use in a particular installation. The guides describe the standards used to investigate the products, the intended installation codes, product markings and other information that can be used to verify the product is used in accordance with its certification.

Application guides


Electrical guides

Marking and application guides for equipment regulated by electrical codes.

Building, fire and mechanical guides

Application guides for equipment regulated by building, fire and mechanical codes.

Sustainability guides

Application guides for equipment evaluated for sustainability and regulated by green construction codes.