| Acronym | Meaning |
 | ADT | Actual Dive Time |
| OWIC | Open Water Instructor Course (BSAC) |
| C-CARD | Scuba Diving Certification Card. |
| DPV | Diver Propulsion Vehicle |
| ITW | Instructor Training Workshop (BSAC) |
| DM | Dive Master (PADI) |
| DCAP | Decompression Computation And Analysis Program |
| MCS | Marine Conservation Society |
| SCUBA | Self Contained Underwater Breathing Aparatus |
| MDL | No Decompression Limit |
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