| Acronym | Meaning |
 | SCUHA | Self-contained Underwater Heating Apparatus (urinating In Your Wet Suit). |
| CMAS | Confederation Moniale Des Activities Subaquatiques |
| DO | Dive Officer (BSAC) |
| C-CARD | Scuba Diving Certification Card. |
| IDEA | International Diving Educators Association; Diving Instruction Organization. |
| EAR | Expired Air Resuscitation |
| ROV | Remotly Operated Vehicle |
| OWI | Open Water Instructor (BSAC) |
| SWP | Safe Working Pressure |
| DEMA | Diving Equipment Manufacturers Association |
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