Hi All, 

We get a lot of concrete mixes that have reduced carbon footprint, however we're not able to use that for LEED because they dont have EPDs. I was wondering if LEED with accept the concrete mix results (GWP + other environmental impacts) from calculators like ZGF calculator or a custom in-house tool? I know Tally creates custom mixes, but the information is outdated since it still uses NRMCA 2019 concrete benchmarks. Other tools like the NRMCA Concrete Calculator doesnt include other environmental impacts. 
Let me know your thoughts.