ABSTRACT
Materials passports are designed to be a data collection, processing and reporting mechanism describing attributes of products and their components that give them value for use and reuse in the Circular Economy. Their use for buildings is highlighted here, although they are applicable in diverse industries. Experience from the EU Horizon 2020 Buildings as Materials Banks (BAMB) project is a basis to describe their development. This overview describes how materials passports are evolving and proliferating, as well as solutions to risks posed by their over-simplification.
