The document discusses best practices for implementing a material declaration system with suppliers. It recommends starting with a smaller declarable substance list (1-400 substances) and fewer required data fields to get quicker initial response times (18-24 months) from suppliers. Conducting a pilot with a small number of suppliers is suggested to test the material declaration template design before broader rollout. Response rates for an initial pilot are estimated to be less than 20% completed templates returned from the supply chain.