How is LBC compliance determined?

The Living Building Challenge (LBC) indicator in Portico indicates whether the product is LBC Red List-Free according to the content inventory submitted in Portico. To be considered Red List-Free, a product record must have:

  • All contents disclosed to a disclosure threshold of 100ppm
  • No unrecognized substances (all must be identified by CASRN, or matched to a biobased or unregistered substance in the Pharos Chemical and Material Library)
  • No substances listed on the Living Building Challenge Red List

Red List compliance is shown at the substance level by an indicator with the abbreviation "RL." A green checkbox indicates compliance, a red "x" indicates the substance is listed on the Red List, and a grey question mark indicates that the substance is unrecognized and therefore compliance cannot be determined. If no Red List substance is listed but any unrecognized substance is listed, the product's overall LBC Red List-free indicator will display as "Unknown."

If no Red List substances are found in a product's content inventory, it may still display "Unknown" for LBC if one or both of the following is true:

  • The disclosure threshold for the product (or for any of the materials, if a nested materials inventory is used) is less than 100ppm
  • There are any substances in the product that are unrecognized and thus unable to be screened.

Declare labels can be uploaded in the Verification and Public URL section of the product profile, and many projects look for these as part of their product research for LBC projects. These labels are not currently counted toward the "LBC Red-List Free" indicator, as not all Declare labels indicate that a product is Red List-free. We encourage manufacturers who have Declare labels for Red List-free products to enter their full content inventory for maximum visibility.


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