The list of Regmodes and Occupation codes listed below are required to import employee lists. If a value is not provided for either of these columns, an error will show indicating this is a required value.
| Regmode Code (Required for Regmode column) | Occupation Code (Required for Occupation column) | Occupation Description |
| COMP | COMP | Company Specific |
| DOD | DOD | Department of Defense |
| FAA | AIR CONTRL | Air Traffic Controller |
| FAA | AIR DSPTCH | Aircraft Dispatcher |
| FAA | FLT ATTEND | Flight Attendant |
| FAA | FLT CREW | Flight Crew Member |
| FAA | FLT INSTR | Flight Instructor |
| FAA | GRND SECTY | Ground Security Coord |
| FAA | MAINTENANC | Maintenance |
| FAA | SCREEN | Aviation Screener |
| FMCSA | DRIVER | Driver |
| FRA | DISPATCHOP | Dispatcher / Operator |
| FRA | ENGINE SVC | Engine Service |
| FRA | OTHER | OTHER |
| FRA | SIGNAL SVC | Signal Service |
| FRA | TRAIN SVC | Train Service |
| FTA | CDL/NONREV | CDL/Non-Revenue Vehicle |
| FTA | SECURITY | Armed Security Personnel |
| FTA | V/E MAINT | Vehicle/Equipment Maint |
| FTA | VEH CNTRL | Vehicle Control/Dispatch |
| FTA | VEH OPER | Vehicle Operator |
| NASA | NASA | NASA |
| NRC | EMPLOYEE | Licensee Employee |
| NRC | LTCONTRACT | Long-Term Contractor |
| NRC | STCONTRACT | Short-Term Contractor |
| PHMSA | O/M/ER | Op/Maint/ER |
| USCG | CREW | Crew |