| CHCO | Chief Human Capital Officer |
| CDP | Candidate Development Program |
| CFR | Code of Federal Regulations |
| ECQ | Executive Core Qualifications |
| EDP | Executive Development Plan |
| EPM | Executive Position Manager |
| ERB | Executive Review Board |
| ERP | Executive Resources Panel |
| ESCS | Executive and Schedule C System |
| EX | Executive Level |
| GS | General Schedule |
| HQ | Headquarters |
| IPA | Intergovernmental Personnel Act |
| NC | NASA Charter |
| NPD | NASA Policy Document |
| NPR | NASA Procedural Requirements |
| OPM | Office of Personnel Management |
| PRA | Presidential Rank Award |
| PRB | Performance Review Board |
| QRB | Qualifications Review Board |
| SES | Senior Executive Service |
| SL | Senior Level |
| ST | Scientific and Professional |
| STARS | Staffing and Recruitment System |
| U.S.C. | United States Code |
| WCD, OHCM | Workforce Culture Division, Office of Human Capital Management |
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