| Acronym | Meaning |
 | BWRAF | Buoyancy |
| SAR | Search And Rescue/Recovery |
| HPNS | High Pressure Nervous Syndrome |
| SPG | Submerssible Pressure Guage |
| AAS | Alternate Air Source |
| CMAS | Confederation Moniale Des Activities Subaquatiques |
| TDT | Total Dive Time |
| PP | Partial Pressure |
| OW(D) | Open Water (Diver) (PADI) |
| SAA | Sub-Aqua Association |
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