Declare is a program run by the International Living Future Institute and is described as "a nutrition label for building products"

Declare labels disclose all intentionally-added ingredients and residuals at or above 100ppm (0.01%) present in the final product by weight. Each ingredient must be reported with a chemical name, CAS number, and percentage or percentage range.

Declare screens a product’s ingredients directly against the Living Building Challenge (LBC) Red List, which contains “worst in class” materials, chemicals and elements known to pose serious risks to human health and the environment.

A product’s compliance with the LBC Red List is represented on the Declare label by the product’s Declaration Status. There are three Declaration Statuses:

• LBC RED LIST FREE products disclose 100% of ingredients present at or above 100 ppm (0.01%) in the final product and do not contain any Red List chemicals.
• LBC RED LIST APPROVED products disclose a minimum of 99% of ingredients present in the final product and meet the LBC Red List Imperative requirements through one or more approved exceptions.
• DECLARED products disclose 100% of ingredients present in the final product, but contain one or more Red List chemicals that are not covered by an approved exception.