It is CO2 certification with 5 levels, the CO2-prestatieladder, used by the Flemish Mobility and Public Works policy area. When comparing bids, a certified company's price is reduced by 2 to 10% according to its level, while it is paid the bid price. It applies to investment contracts of at least €3 million in 2026, then to investment and maintenance contracts of at least €1 million from 2027.
Read the source article: Carbon footprint in Belgium: costs, obligations and funding in 2026