Introduction to Chain of Custody explains how specific sustainability claims can be connected to products, materials, attributes, records, and certificates across complex supply chains. These chain of custody claims relate to certain specified characteristics and are in some ways similar to environmental labeling schemes which have defined requirements that need to be followed in order to receive a certain label. These claims go beyond traditional communication and marketing of products. Depending on the scheme or approach being followed, these claims may be self-declared or verified through a third party scheme.

Learners explore the main chain of custody models and why credible evidence systems are essential for transparent, trustworthy claims in the iron and steel sector.

These claims should also follow the requirements laid out in other relevant certification schemes.