| Acronym | Meaning |
 | AGE | Aterial Gas Embolism |
| AAS | Alternate Air Source |
| DIR | Doing It Right |
| RD | Rescue Diver (PADI) |
| CCR | Closed Circuit Rebreather |
| DCAP | Decompression Computation And Analysis Program |
| NAUI | National Association Of Underwater Instructors |
| SCUHA | Self-contained Underwater Heating Apparatus (urinating In Your Wet Suit). |
| CESA | Controlled Emergency Swimming Ascent |
| DL | Dive Leader (BSAC) |
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