| Abbreviation | Definition |
|---|---|
| HSE | Health Safety and Environmental |
| HSECES | Health Safety Environmental Critical Equipment Systems |
| HSEIA | Health Safety and Environmental Impacts Assessment |
| HSEM | Health Safety and Environmental Management |
| HSEMS | Health Safety & Environment Management System |
| HSEQ | Health Safety Environmental and Quality |
| HSEQ | Health Safety Environmental Quality |
| HSES | Health Safety Environmental and Security |
| HSESC | Henley Schools Environmental Science Competition |
| HSET | Health Safety and Environmental Technician |
| HSET | Health Safety and Environmental Technology |
| HSET | Health Safety Environmental and Training |
| HSET | Health Safety Environmental Technician |
| HSGS | Hannah Solar Government Services |
| HSRC | Hazardous Substance Research Center |
| HSSE | Health Safety Security And Environmental |
| HSSE | Health Safety Social And Environmental |
| HVC | High Velocity Compaction |
| HVE | High-Value Ecosystem |
| HW | Hazardous Waste |