| AS |
Administrative Services Group |
| CO |
Commerce Group |
| CR |
Clerical and Regulatory Group |
| CS |
Computer Systems Administration Group |
| EG |
Engineering and Scientific Support Group |
| EN |
Engineering and Land Survey Group |
| ES |
Economics, Sociology and Statistics Group |
| EX |
Executive Group |
| FI |
Financial Management Group |
| GL EIM |
Electrical Installing and Maintaining Sub-Group
includes GL EIM (553) and GL EIM (574) |
| GL ELE |
Elemental Sub-Group Sub-Group |
| GL INM |
Instrument Maintaining Sub-Group |
| GL MAM |
Machinery Maintaining Sub-Group |
| GL MAN |
Manipulating Sub-Group |
| GL MDO |
Machine Driving-Operating Sub-Group |
| GL PIP |
Pipefitting Sub-Group |
| GS |
General Services
includes GS BUS (561), GS BUS (582), GS STS (565) and GS STS (586) |
| GT |
General Technical Group |
| HP |
Heating, Power and Stationary Plant Operation Group |
| IM |
Inspection Management Group |
| IS |
Information Services Group |
| OM |
Organization and Methods Group |
| PE |
Personnel Administration Group |
| PG |
Purchasing and Supply Group |
| PM |
Program Administration Group |
| SE-REM |
Research Manager Group |
| SE-RES |
Research Scientist Group |
| SI |
Social Science Support Group |
| SR |
Regulatory Science Group |
| Student |
Student Group |
| VM |
Veterinary Medicine Group |
