StacksVerified U.S. regulatory reference

40 CFR Part 98, Table Z-1

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
OriginTotal carbon(percent by weight)
Central Florida1.6
North Florida1.76
North Carolina (Calcined)0.76
Idaho (Calcined)0.6
Morocco1.56