| Acronym | Definitions |
|---|---|
| HASS | 2 |
| HAST | 3 |
| HAT | 4 |
| HATR | 3 |
| HATREMS | 1 |
| HATS | 3 |
| HAU | 2 |
| HAV | 2 |
| HAW | 6 |
| HAY | 2 |
| HAZ | 5 |
| HAZCAT | 3 |
| HAZCOM | 4 |
| HAZMAT | 3 |
| HAZOP | 2 |
| HAZOPER | 2 |
| HAZW | 1 |
| HAZWOPER | 3 |
| HAZWRAP | 1 |
| HB | 22 |
| HBA | 2 |
| HBBCA | 1 |
| HBC | 5 |
| HBCU | 3 |
| HBCU/MI | 1 |
| HBD | 5 |
| HBE | 2 |
| HBEP | 1 |
| Hbf | 5 |
| HBJ | 2 |
(91 — 120 of 897)