| Abbreviation | Definition |
|---|---|
| CMG2 | Construction Mechanic (gasoline) Petty Officer 2nd Class |
| CMG2 | nstruction Mechanic (gasoline) Petty Officer 2nd Class |
| CMG3 | Construction Mechanic (gasoline) Petty Officer 3rd Class |
| CMG3 | nstruction Mechanic (gasoline) Petty Officer 3rd Class |
| CMGC | Construction Mechanic (gasoline) Chief Petty Officer |
| CMGC | nstruction Mechanic (gasoline) Chief Petty Officer |
| CMGCA | Construction Mechanic (gasoline) Constructionman Apprentice |
| CMGCA | nstruction Mechanic (gasoline) Constructionman Apprentice |
| CMGCN | Construction Mechanic (gasoline) Constructionman |
| CMGCN | nstruction Mechanic (gasoline) Constructionman |
| CMGCR | Construction Mechanic (gasoline) Constructionman Recruit |
| CMGCR | nstruction Mechanic (gasoline) Constructionman Recruit |
| CMH1 | Construction Mechanic (heavy Construction) Petty Officer 1st Class |
| CMH1 | nstruction Mechanic (heavy Construction) Petty Officer 1st Class |
| CMH2 | Construction Mechanic ((heavy Construction)) Petty Officer 2nd Class |
| CMH2 | onstruction Mechanic ((heavy Construction)) Petty Officer 2nd Class |
| CMH3 | Construction Mechanic (heavy Construction) Petty Officer 3rd Class |
| CMH3 | nstruction Mechanic (heavy Construction) Petty Officer 3rd Class |
| CMHC | Construction Mechanic (heavy Construction) Chief Petty Officer |
| CMHC | nstruction Mechanic (heavy Construction) Chief Petty Officer |