| CFI | Certified Flight Instructor (USA) |
| CFII | Certified Flight Instructor Instruments (USA) |
| GLIDE | Glider |
| INSTR | Instrument Rating |
| LTAIR | Lighter than Air |
| MEI | Multi-Engine Instructor |
| MEL | Multi-Engine Land |
| MES | Multi-Engine Sea |
| OT | Other |
| ROTOR | Rotorwing |
| SEL | Single Engine Land |
| SES | Single Engine Sea |
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