The construction sector is a significant contributor to environmental impact. Considering this, it has become crucial to develop practical approaches to incentivise the reduction of carbon emissions and other environmental impacts. Scandinavian countries as well as the Netherlands have been successfully using Environmental Product Declarations (EPDs) of road construction materials, to compare materials from different producers and foster competition for more sustainable alternatives in tenders. This has shown a development on low(er) carbon-intensive materials. In Germany, since 2022, various pilot initiatives have been launched to explore similar approaches. A working group within the German Road and Transportation Research Association (FGSV) has developed a guideline with strategies to incorporate sustainability metrics into procurement processes. As part of this effort, benchmarks for asphalt and concrete have been calculated using a cradle-to-delivery (modules A1 to A4) approach, with the intention to expand the scope of this work to include additional materials, life cycle modules and impact categories, such as Global Warming Potential (GWP) in the future. This ongoing development aims to further integrate sustainability into road construction practices and promote the use of environmentally responsible materials.