A certification listing is a document used to guide installations of certified products.
After a field installation is completed, it is compared to the list to make sure that it complies with a regulation (e.g., a building code).
Such organizations include Underwriters Laboratories, FM Global, or the Deutsches Institut für Bautechnik (DIBt).
Certification listings are short versions and interpretations of the test results.
In the event that irregularities are discovered on the part of the manufacturer - substitutions of cheaper ingredients or components, deliberate or inadvertent irregularities, or an ingredient or component of a tested system which is no longer be available has been substituted - the listing can be de-activated and the manufacturer asked to remove all logos of the certifier from product literature, promotional materials, packaging, etc.