| Acronym | Meaning |
 | ITW | Instructor Training Workshop (BSAC) |
| SCUDA | Self Contained Underwater Drinking Apparatus. Product That Can Be Used To Drink Underwater. |
| DCAP | Decompression Computation And Analysis Program |
| DSMB | Delayed Surface Marker Buoy |
| IDC | Instructor Development Course (PADI) |
| GMDSS | Global Maritime Distress And Safety System |
| EAR | Expired Air Resuscitation |
| TNT | Total Nitrogen Time |
| PPB | Peak Performance Bouyancy |
| DV | Demand Valve |
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