| Acronym | Meaning |
 | DCI | Decompression Illness |
| IDC | Instructor Development Course (PADI) |
| PSI | Pounds Per Square Inch |
| DSMB | Delayed Surface Marker Buoy |
| OWI | Open Water Instructor (BSAC) |
| CAGE | Cerebral Arterial Gas Embolism |
| AOW | Advanced Open Water |
| PPB | Peak Performance Bouyancy |
| RSTC | Recreational Scuba Training Council. Organization That Sets Basic Guidelines For Scuba Diving Agencies. |
| MDL | No Decompression Limit |
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