40 CFR Part 98, Table Z-1 — Default Chemical Composition of Phosphate Rock by Origin
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
| Origin | Total carbon(percent by weight) |
|---|---|
| Central Florida | 1.6 |
| North Florida | 1.76 |
| North Carolina (Calcined) | 0.76 |
| Idaho (Calcined) | 0.6 |
| Morocco | 1.56 |