| Acronym | Meaning |
 | SCUBA | Self Contained Underwater Breathing Aparatus |
| BSAC | British Sub-Aqua Club |
| MSDT | Master SCUBA Diver Trainer (PADI) |
| DCS | Decompression Sickness |
| ITS | Instructor Training Scheme (BSAC) |
| HPNS | High Pressure Nervous Syndrome |
| ROV | Remotly Operated Vehicle |
| RNT | Residual Nitrogen Time |
| RIB | Rigid-Hulled Inflatable Boat |
| RSTC | Recreational Scuba Training Council. Organization That Sets Basic Guidelines For Scuba Diving Agencies. |
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