Yes, ANSI/NSF 373 Sustainable Production of Natural Dimension Stone can contribute as a “USGBC-approved program” as third party verification (full credit) in Option 1 of LEED v4 BD+C and ID+C MR credit BPDO – Sourcing of Raw Materials provided the stone facility has earned certification, made its scorecard publicly available and earned either credit 7.2.1 or 7.2.2.