| Acronym | Meaning |
 | TO | Training Officer (BSAC) |
| PADI | Professional Association Of Diving Instructors |
| AOW | Advanced Open Water |
| VENTID | Vision Ears Nausea Twitiching Irritation Dizziness |
| BCD | Buoyancy Control Device |
| RIB | Rigid-Hulled Inflatable Boat |
| EAN(X) | Enriched Air Nitrox |
| GMDSS | Global Maritime Distress And Safety System |
| CESA | Controlled Emergency Swimming Ascent |
| SPG | Submerssible Pressure Guage |
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