4C Voluntary Add-Ons

4C certification thoroughly covers and enables continuous improvement across three dimensions of sustainability. The core criteria are outlined in the 4C Code of Conduct. If 4C System Users desire to go beyond the 4C Code of Conduct and address a specific challenge in the coffee supply chain even deeper, 4C offers a solution in a form of Add-Ons. These  are modules that are applied on top of the regular certification requirements and procedures.