As CCS is for the benefit of the climate, the carbon debt of the project should be a key consideration. Thus, the supply chain emissions of materials and equipment should be accounted for. This would require reliable life cycle assessments by the vendors, i.e., environmental impact of extraction and conversion of raw material, and the manufacturing process of that product. The source of material will impact the overall carbon balance, e.g., petrochemical-based polymer compared to biomass-derived polymer. Furthermore, decommissioning, including the process of waste disposal, should be considered. Currently, vendors are not required to report this information. A system needs to be developed, and implemented. However, the international nature of supply chains presents challenges in consistency. Bodies such as the International Organization for Standardization (ISO) could have an important role in the development of a standardised framework, which could then be employed by various jurisdictions in their regulations, and legislation.