| Active Ingredients | Current Applications | Registered Products | Current Re-evaluations | Incident Reports |
| HALAUXIFEN-METHYL | 4 | 0 | 0 | 0 |
| HALOSULFURON-METHYL | 4 | 0 | 0 | 0 |
| HEXAHYDRO-1,3,5-TRIS(2-HYDROXYETHYL)-S-TRIAZINE | 0 | 8 | 0 | 2 |
| HEXAZINONE | 2 | 8 | 0 | 6 |
| HEXYTHIAZOX | 1 | 0 | 0 | 0 |
| HYDRAMETHYLNON | 1 | 5 | 0 | 7 |
| HYDROGEN PEROXIDE | 7 | 12 | 0 | 2 |