Table 7.
Changes in selected U.S. EPA glyphosate tolerance levels (ppm)
| 1993 | 1999 | 2012 | 2015 | |
|---|---|---|---|---|
| Soybeans | ||||
| Grain | 20 | 20 | 20 | 40 |
| Hay | 15 | 200 | 200 | 100 |
| Forage | 15 | 100 | 100 | 100 |
| Maize | ||||
| Corn grain | 0.1 | 0.1 | 5 | 5 |
| Corn stover | NT | NT | 6 | 100 |
| Sweetcorn | 0.2 | 0.2 | 3.5 | 3.5 |
| Oats | ||||
| Grain | 0.1 | 0.1 | 0.1 | 30 |
| Wheat | ||||
| Grain | 0.1 | 5 | 5 | 30 |
| Straw | 0.1 | 85 | 85 | 100 |
| Edible beans | 0.2 | 0.2 | 5 | 5 |
| Alfalfa | ||||
| Dry hay | 0.2 | 200 | 200 | 400 |
| Silage | 0.2 | 75 | 75 | 400 |
2012 and 2015 tolerances—40 CFR Part 180.364, “Glyphosate; tolerances for residues.” 1993 tolerances—”Glyphosate Reregistration Eligibility Document (RED),” (7508 W), Office of Pesticide Programs, U.S. EPA, September 1993. 1999 tolerances—EPA Tolerance Reassessment document for Reassessed Group 3 tolerances, August 4, 1999