Companies want to go beyond emission reductions in their own operation facilities and supply chains, by designing products that reduce emissions at downstream customers. A fuel efficient tire, for example, reduces greenhouse gas (GHG) emissions when driving a car. Such emission reductions are also called “avoided emissions”. Despite the opportunities, companies face challenges when introducing their innovative products to the market. The International Council of Chemical Associations and World Business Council for Sustainable Development commissioned Ecofys to write guidelines for accounting for and reporting greenhouse gas emissions avoided along the value chain of chemical products. The guidelines provide a global standard methodology and are a worldwide example on how to calculate and communicate the GHG benefits of products.