| Acronym | Meaning |
| BHA | British Hyperbaric Association |
| CAGE | Cerebral Arterial Gas Embolism |
| EFR | Emergency First Response |
| VGE | Venous Gas Embolism |
| PDIC | Professional Diving Instructors Corporation International; Diving Instruction Organization. |
| DPV | Diver Propulsion Vehicle |
| MDL | No Decompression Limit |
| OWSI | Open Water SCUBA Instructor (PADI) |
| MCS | Marine Conservation Society |
| SPG | Submerssible Pressure Guage |