A CII report reveals that mandating 26% certified green steel in public projects could unlock 16 million metric tons of annual demand by 2030 while increasing project costs merely 0.2% to 1.2%. 93% of surveyed producers are ready to supply such steel, contingent on clear mandate and cost recovery mechanisms. The policy would avoid up to 20.9 million metric tons of CO₂ emissions, equivalent to removing millions of cars from roads.