| Acronym | Meaning |
 | NASDS | National Association Of Scuba Diving Schools; Diving Instruction Organization. |
| DSMB | Delayed Surface Marker Buoy |
| RDP | Recreational Dive Planner |
| HPNS | High Pressure Nervous Syndrome |
| AGE | Aterial Gas Embolism |
| ABT | Actual Bottom Time |
| MSDT | Master SCUBA Diver Trainer (PADI) |
| DAN | Divers Alert Network |
| IDEA | International Diving Educators Association; Diving Instruction Organization. |
| IAND | International Association Of Nitrox Divers |
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